Class / Patent application number | Description | Number of patent applications / Date published |
525056000 | Polyvinyl alcohol | 86 |
20080281044 | Endosomolytic Modified Poly(Alcohol) and Poly(Amine) Polymers - The present invention is directed to membrane active polymers useful for cellular delivery of compounds. Described are polyconjugates systems that incorporate targeting, anti-opsonization, anti-aggregation, and transfection activities into small biocompatible in vivo delivery conjugates. The use of reversible modification provides for physiologically responsive activity modulation. | 11-13-2008 |
20090118424 | POLYVINYL ACETALS CONTAINING UNSATURATED ACETAL UNITS - Polyvinyl acetals with unsaturated acetal units are obtained by means of acetalization of partly hydrolysed or fully hydrolysed vinyl ester polymers having >50 mol % of vinyl alcohol units with one or more saturated, aliphatic aldehydes and one or more unsaturated, acyclic aliphatic aldehydes, the aldehydes optionally used in the form of their hemiacetals or full acetals. | 05-07-2009 |
20090149599 | Polyvinyl Alcohol-Based Resin and Use Thereof - An object of the present invention is to provide a novel polyvinyl alcohol-based resin excellent in viscosity stability of an aqueous solution, high-speed coatability, reactivity with a crosslinking agent and water solubility. The invention relates to a polyvinyl alcohol-based resin comprising a structural unit having a carboxyl group-containing long-chain alkyl group on a side chain, which is represented by the general formula (1): | 06-11-2009 |
20090306293 | Polarizer Having Excellent Durability, Polarizing Plate and Methods of Producing the Polarizer and the Polarizing Plate - There is provided a method of producing a polyvinyl alcohol (PVA) film polarizer having an excellent durability, the method comprising dyeing, cross-linking, stretching, and drying, wherein additives containing phosphorus is inputted into one or more of the dyeing, the cross-linking, and the stretching. In this case, the additives containing phosphorus may be selected from a group consisting of a phosphoric acid, potassium phosphate monobasic, potassium phosphate dibasic, magnesium phosphate dibasic, sodium phosphate monobasic, and ammonium phosphate monobasic. An amount of the additives containing phosphorus in an added solution may be 0.01 to 15 wt %. As described above, when inputting the additives containing phosphorus while producing a polarizer, cross-linking between iodine and a polymer matrix becomes strong due to the phosphorus contained in the additives, thereby producing a polarizer having an excellent durability, and particularly, an excellent thermal stability. | 12-10-2009 |
20090318620 | High Plasticization-Resistant Cross-Linked Polymeric Membranes for Separations - This invention involves a composition, a method of making, and an application of high plasticization-resistant chemically cross-linked polymeric membranes such as cross-linked cellulose acetate (CA) membrane. These cross-linked polymeric membranes with covalently interpolymer-chain-connected rigid networks showed no decrease in CO | 12-24-2009 |
20100041826 | MULTICOMPONENT ASSEMBLIES HAVING ENHANCED BINDING PROPERTIES FOR DIAGNOSIS AND THERAPY - An organized mobile multicomponent conjugate (OMMC) and method of using to enhance binding of weakly binding compounds to a target. A lamellar structure containing at least two binding compounds is assembled under conditions in which the binding compounds self-regulate in or on the lamellar structure, forming a cooperative ensemble that is capable of binding with enhanced affinity to a complementary affinity site on a target. Each binding compound is bound to the lamellar surface, and may be connected by a linker. The OMMC may contain an effector molecule, such as a diagnostic or therapeutic agent, for administration to a patent who is then diagnosed or treated using the effector molecule. | 02-18-2010 |
20100041827 | MULTICOMPONENT ASSEMBLIES HAVING ENHANCED BINDING PROPERTIES FOR DIAGNOSIS AND THERAPY - An organized mobile multicomponent conjugate (OMMC) and method of using to enhance binding of weakly binding compounds to a target. A lamellar structure containing at least two binding compounds is assembled under conditions in which the binding compounds self-regulate in or on the lamellar structure, forming a cooperative ensemble that is capable of binding with enhanced affinity to a complementary affinity site on a target. Each binding compound is bound to the lamellar surface, and may be connected by a linker. The OMMC may contain an effector molecule, such as a diagnostic or therapeutic agent, for administration to a patent who is then diagnosed or treated using the effector molecule. | 02-18-2010 |
20100063209 | DEGRADABLE THIOL-ENE POLYMERS - A thiol-ene polymeric material is disclosed. The material is produced by the photopolymerization of reactants having thiol and olefin moieties. The material can incorporate encapsulated components, including cells. Additionally, the material can be derivatized by reacting the polymeric material with components such as proteins. | 03-11-2010 |
20100184917 | METHOD FOR PRODUCING VINLY RESIN - The present invention provides a method for producing a vinyl resin in which, in suspension polymerization of a vinyl compound using a polymerization tank equipped with a reflux condenser, uniform vinyl polymer particles are obtained and an excellent defoaming property is achieved against dry foam that occurs at middle to later stages of the polymerization. The present invention provides a method for producing a vinyl resin including the step of in suspension polymerization of a vinyl compound using a polymerization tank equipped with a reflux condenser in the presence of a dispersion stabilizer for suspension polymerization, adding, at the time when the polymerization conversion is 10% or more, 0.001 to 5 parts by weight of a vinyl alcohol polymer (A) that has, in its side chain, an unsaturated double bond, an aromatic group optionally having a carboxyl group, a saturated aliphatic group having a carboxyl group, or a saturated aliphatic group having at least 11 carbon atoms, with respect to 100 parts by weight of the vinyl compound. | 07-22-2010 |
20110190446 | Three-dimensional modeling apparatus, method of manufacturing a three-dimensional object, and three-dimensional object - Provided is a three-dimensional modeling apparatus including a supply mechanism, a deposition area, a variable mechanism, a discharge mechanism, and a control means. The supply mechanism supplies a powder material. In the deposition area,, the supplied powder material is deposited. The variable mechanism varies a volume of the deposition area per a predetermined layer thickness, and thus the powder material is deposited per the predetermined layer thickness in the deposition area. The discharge mechanism discharges liquid for forming a three-dimensional object to the deposited powder material, the liquid being capable of hardening the powder material. The control means causes the discharge mechanism to discharge the liquid to the powder material, to thereby form a main body being an object being as a target to be modeled and a frame body being an object to be formed in a periphery of the main body, of the three-dimensional object. | 08-04-2011 |
20110237748 | METHODS AND SYSTEMS FOR GENERATING NANOPARTICLES - In one aspect, the present invention provides a process for forming polymeric nanoparticles, which comprises using a static mixer to create a mixed flowing stream of an anti-solvent, e.g., by introducing a liquid anti-solvent into a static mixer, and introducing a polymer solution into the mixed flowing anti-solvent stream such that controlled precipitation of polymeric nanoparticles occurs. The nanoparticles can then be separated from the anti-solvent stream. | 09-29-2011 |
20110245419 | Continuous Washing of Poly(Vinyl Butyral) - The present invention provides a method for continuously washing poly(vinyl butyral) in which a poly(vinyl butyral) slurry is passed through multiple continuous stirred tank reactors, each of which is adjusted to specific processing parameters that allow for continuous input, washing, and removal of poly(vinyl butyral). The resulting poly(vinyl butyral) can then be dried to form a powder resin that can be used in place of conventional poly(vinyl butyral) resin. In an alternative embodiment, a counter current screw washing unit is provided that passes wash water over the poly(vinyl butyral) in a direction opposite to the flow of the poly(vinyl butyral), thereby allowing the continuous washing of the poly(vinyl butyral) resin. | 10-06-2011 |
20120329948 | Method for Injection Molding at Low, Substantially Constant Pressure - Disclosed herein are methods of injection molding at low, substantially constant melt pressures. Embodiments of the disclosed method now make possible a method of injection molding that is more energy—and cost—effective than conventional high-velocity injection molding processes. Embodiments of the disclosed method surprisingly allow for the filling of a mold cavity at low melt pressure without undesirable premature hardening of the thermoplastic material in the mold cavity and without the need for maintaining a constant temperature or heated mold cavity. Heretofore, it would not have been expected that a constant pressure method could be performed at low pressure without such premature hardening of the thermoplastic material when using an unheated mold cavity or cooled mold cavity. | 12-27-2012 |
20130231442 | THERMALLY STABLE POLYESTER (ALKYD) POLYMERS - A polyester (alkyd) for use in hot melt adhesive composition is provided. Unreacted carboxyl groups in the alkyd resin are reacted with a monofunctional epoxide to form functional groups that are unreactive with alcohols. | 09-05-2013 |
20150307674 | RESIN COMPOSITION AND FILM FORMED FROM SAID RESIN COMPOSITION - The present invention provides the resin composition having excellent inflation moldability by which a film having high water vapor transmission rate (WVTR) and low elastic modulus can be produced, and a film which is formed from the resin composition. The present invention relates to a resin composition comprising a polyamide resin (A) and a polyvinyl alcohol-based resin (B) which includes 2-10% by mole of structural unit represented by the following general formula (1) and has a degree of saponification of 70-90% by mole, and a film which is formed from the resin composition. | 10-29-2015 |
20150337129 | RESIN COMPOSITION AND MOLDED ARTICLE OF THEREOF - A resin composition of the present invention comprises a polyvinyl alcohol (PVA)-based resin (A) which comprises a structural unit represented by the following general formula (1) and has a degree of saponification of 85-94% by mole and a polybutylene adipate/butylene terephthalate copolymer (PBAT) (B), wherein a content ratio of the PVA-based resin (A) to the PBAT (B) ((A)/(B)) is from 80/20 to 60/40 (by weight). | 11-26-2015 |
20160194416 | DISPERSION STABILIZER FOR SUSPENSION POLYMERIZATION AND METHOD FOR PRODUCING VINYL RESIN | 07-07-2016 |
525057000 | With solid polymer derived from ethylenic reactants only | 23 |
20080207829 | Process for conversion of polyvinyl butyral (PVB) scrap into processable pellets - The present invention relates to a polyvinylbutyral (PVB) composition that is useful for blending with other polymers. The PVB composition of the present invention can be stored and used at ambient temperature without the occurrence of blocking by the PVB. | 08-28-2008 |
20090156740 | TIRE WITH COMPONENT CONTAINING POLYMERIC NANOFIBER - The present invention is directed to a pneumatic tire comprising at least one component, the at least one component comprising a rubber composition, the rubber composition comprising a diene based elastomer and from 1 to 100 parts by weight, per 100 parts by weight of elastomer of a polymer nanofiber having a thickness ranging from 20 to 200 nm. | 06-18-2009 |
20090171022 | Tie-layer adhesives for styrene polymers and articles - Adhesive compositions for styrene polymers are provided. The adhesives are suitable for use as tie-layers in multi-layer films and sheets and comprise a polyolefin base resin, a functionalized polyolefin and a combination of styrene triblock copolymers. | 07-02-2009 |
20100041828 | DISPERSION STABILIZER FOR SUSPENSION POLYMERIZATION - The present invention provides a dispersion stabilizer having an excellent polymerization stability. When used for suspension polymerization of vinyl compounds even in small amounts, the dispersion stabilizer according to the present invention attains the effects that: with respect to vinyl polymer particles to be obtained, the plasticizer absorptivity is high, leading to easy processing; residual monomer components such as a vinyl compound can be removed easily; the number of coarse particles is small; the obtained particles are as uniform as possible in particle size so that formation of fish-eyes can be prevented. The present invention provides a dispersion stabilizer for suspension polymerization including a polyvinyl alcohol polymer (A) having a saponification degree of 60 mol % or more and a polymerization degree of 200 or more, and a polyvinyl alcohol polymer (C) obtained by esterifying a polyvinyl alcohol polymer (B) having a saponification degree of less than 60 mol % with a carboxylic acid compound. | 02-18-2010 |
20100267897 | THERMOPLASTIC AMPHIPHILIC CO-NETWORKS - The present invention relates generally to thermoplastic amphiphilic networks and/or co-networks. In one embodiment, the present invention relates to thermoplastic (TP) amphiphilic co-networks (APCNs) and the preparation of membranes from such APCNs. In another embodiment, the present invention relates to an amphiphilic network comprising at least one hydrophilic polymer-derived portion, at least one hydrophobic polymer-derived portion and at least one thermoplastic polymer-derived portion. In still another embodiment, the present invention relates to thermoplastic amphiphilic co-networks prepared by combining the chemistries of APCNs and polyurethanes (PUs) and to the preparation of membranes therefrom. | 10-21-2010 |
20110112247 | THERMOPLASTIC ACRYLIC RESIN COMPOSITION - Provided is a thermoplastic acrylic resin composition comprising a methacrylic resin (A) and a polyvinyl acetal resin (B) obtained by acetalizing a polyvinyl alcohol resin with an aldehyde having 4 or more carbon atoms and an aldehyde having 3 or less carbon atoms in which the total amount of the vinyl alcohol units acetalized with the aldehyde having 4 or more carbon atoms and the aldehyde having 3 or less carbon atoms is 65 to 85 mol % of all repeating units, and the molar ratio of the vinyl alcohol unit acetalized with the aldehyde having 4 or more carbon atoms to the vinyl alcohol unit acetalized with the aldehyde having 3 or less carbon atoms is from 90/10 to 0/100. Furthermore, provided are an article molded from the thermoplastic acrylic resin composition and a method of producing the thermoplastic acrylic resin composition comprising the steps of mixing a methacrylic resin (A) and a polyvinyl acetal resin (B), increasing the resin temperature to 160° C. or more, and then decreasing the resin temperature to 120° C. or less. | 05-12-2011 |
20110166292 | PROCESS FOR MANUFACTURING EVOH RESIN COMPOSITION - The present invention provides a composition of a solvolysis product of an ethylene-vinyl ester copolymer excellent in productivity and formability, which has a small absolute value of melting peak, even in the case where two or more kinds of solvolysis products of ethylene-vinyl ester copolymers are blended. The invention relates to a process for manufacturing a composition of a solvolysis product of an ethylene-vinyl ester copolymer, which comprises conducting solvolysis of an ethylene-vinyl ester copolymer (A′) and a modified ethylene-vinyl ester copolymer (B′) comprising a structural unit derived from a compound represented by the general formula (2) in one system, and manufacturing the composition of a solvolysis product of an ethylene-vinyl ester copolymer comprising a solvolysis product (A) of the ethylene-vinyl ester copolymer and a solvolysis product (B) of the modified ethylene-vinyl ester copolymer comprising a structural unit represented by the general formula (1), wherein a ratio of an ethylene content (B′)/(A′) in the step of conducting solvolysis is 0.3 or more and less than 1: | 07-07-2011 |
20110172363 | Multilayered Package with Barrier Properties - The present invention provides compositions useful as a barrier layer in, for example, packaging products. The compositions generally comprise a blend of (i) a polyester material, preferably an aromatic polyester resin such as polyethylene terephthalate (PET) and (ii) a vinyl alcohol material. The blend optionally may further comprise (iii) a polyolefin material (preferably a functionalized polyolefin material, e.g., a BYNEL material); and/or (iv) a polyamide material (preferably an amorphous polyamide material, e.g., a GRIVORY material), that optionally further comprises an oxygen scavenging material. The present invention also provides containers (e.g., containers formed by expansion of preforms) having a multilayered body-forming portion including: a core layer comprising the aforementioned blend, and inner and outer layers of a formable polymer composition. The present invention also provides methods of making such containers. | 07-14-2011 |
20110269906 | MEMBRANES, METHODS OF MAKING MEMBRANES, AND METHODS OF SEPARATING GASES USING MEMBRANES - Membranes, methods of making membranes, and methods of separating gases using membranes are provided. The membranes can include at least one hydrophilic polymer, at least one cross-linking agent, at least one base, and at least one amino compound. The methods of separating gases using membranes can include contacting a gas stream containing at least one of CO | 11-03-2011 |
20120010364 | ENCAPSULATED CURE SYSTEMS - Encapsulated cure systems are provided wherein a curative is incorporated into a solid or semi-solid carrier material whereby mere fracturing or failure of the capsule wall encapsulating such cure systems will not provide for or allow sufficient release of the curative. Also provided are adhesive systems incorporating said encapsulated cure systems. | 01-12-2012 |
20120157627 | POLYVINYL ALCOHOL RESIN COMPOSITION AND MOLDED ARTICLE THEREOF - Disclosed is a polyvinyl alcohol resin composition capable of providing a melt-molded article with superior gas barrier properties and flex crack resistance. The resin composition comprises (A) a PVA resin having 1,2-diol unit in side chain thereof; and (B) a mixture of block copolymers each having an aromatic vinyl polymer block, and a conjugated diene polymer block and/or hydrogenated thereof, wherein the (B) mixture of block copolymers includes (B1) a block copolymer having no carboxyl group and (B2) a block copolymer modified with a carboxyl group-containing compound. | 06-21-2012 |
20120214943 | PROCESS FOR PRODUCING THERMOPLASTIC ELASTOMER COMPOSITION - Disclosed is a process for producing a thermoplastic elastomer composition having a matrix phase comprising a polyamide and an ethylene/vinyl alcohol copolymer and a disperse phase comprising a rubber composition, by which gelation by a reaction between a polyamide and an ethylene/vinyl alcohol copolymer can be inhibited and the dispersion of the rubber composition can be good. In the process, the polyamide resin and the rubber composition are melt-blended to the extent necessary for the rubber composition to form a disperse phase, and then the ethylene/vinyl alcohol copolymer is added and further melt-blended together. | 08-23-2012 |
20120289654 | MECHANICALLY STABILIZED POLYAZOLES COMPRISING AT LEAST ONE POLYVINYL ALCOHOL - A process for preparing mechanically stabilized polyazoles, comprising the following steps:
| 11-15-2012 |
20130123427 | PROCESS FOR CONTINUOUS EMULSION POLYMERIZATION - The invention relates to a process for the preparation of polymers and to an apparatus for performing this process. The apparatus comprises devices and reactors that are combined in the sequence of first a mixing device, second a flow microwave and optionally third one or more additional reactors. | 05-16-2013 |
20150018487 | THERMOPLASTIC RESIN COMPOSITION AND TIRE USING SAME - Provided is a thermoplastic resin composition which exhibits little dependence of air permeability on fatigue. The present invention is a thermoplastic resin composition which comprises an ethylene-vinyl alcohol copolymer and a polyamide resin, said thermoplastic resin composition being characterized in that only one maximal peak point assignable to crystallization is observed in the curve of heat flow versus temperature as determined by differential scanning calorimetry of a melt-kneaded mixture of 25 parts by mass of the ethylene-vinyl alcohol copolymer and 75 parts by mass of the polyamide resin in a cooling process. | 01-15-2015 |
20150133605 | PNEUMATIC TIRE - Provided is a pneumatic tire which has low air permeability and undergoes a small change in air permeability due to fatigue. A pneumatic tire of the present invention contains a layer which is formed of a thermoplastic elastomer composition that is composed of (A) a modified ethylene-vinyl alcohol copolymer to which an aliphatic polyester is grafted, (B) a polyamide resin and (C) a modified rubber having an acid anhydride group or an epoxy group. | 05-14-2015 |
20150148487 | COMPOSITIONS AND METHODS FOR MAKING POLYESTERS AND ARTICLES THEREFROM - Polyester materials, methods for making polyesters materials, and uses of the polyester materials in binder materials and articles of manufacture are disclosed. In one embodiment, a process is provided for preparing a polyester solution, including mixing monomers of at least one organic acid containing at least three carboxylic groups and at least one multi-hydroxyl alcohol containing at least three hydroxyl groups to form a reaction mixture, heating the reaction mixture to a first temperature, polymerizing the monomers at the first temperature until reaching an acid value from about 200 to about 400 mg KOH/g, adjusting the temperature to a second temperature less than the first temperature, and forming the polyester solution. The polyester materials may be mixed with cross-linking materials to form binder materials. The binder material may then be used to form articles of manufacture. | 05-28-2015 |
20150299450 | RESIN BLEND - Provided are a resin blend for melt processing, a pellet and a method of preparing a resin article using the same. The resin blend may include a first resin, and a second resin having a difference in melt viscosity from the first resin of 0.1 to 3000 pa*s at a shear rate of 100 to 1000 s | 10-22-2015 |
20150329713 | DISPERSION STABILIZER FOR SUSPENSION POLYMERIZATION AND VINYL RESIN PRODUCTION METHOD - There is provided a dispersion stabilizer for suspension polymerization comprising a vinyl alcohol polymer (A), wherein the vinyl alcohol polymer (A) has a terminal anionic group and has a saponification degree of 30 to 60 mol %, a viscosity average polymerization degree of 650 or less, and a proportion of polymer molecules having a molecular weight of 8000 or less as determined by gel permeation chromatography is 9.5% by mass or less. When a vinyl compound is suspension-polymerized using the dispersion stabilizer for suspension polymerization, its higher polymerization stability allows for providing particles having a uniform size with a less amount of coarse particles, even under the conditions favorable for unstable polymerization. | 11-19-2015 |
20150376395 | GRAFT COPOLYMER, THERMOPLASTIC RESIN COMPOSITION, AND MOLDED ARTICLE OF SAID RESIN COMPOSITION - This graft copolymer is obtainable by polymerization of a vinyl-based monomer mixture (m1) including an aromatic vinyl compound and a vinyl cyanide compound, in the presence of: an ethylene.α-olefin copolymer (A) which has a mass average molecular weight (Mw) of 17×10 | 12-31-2015 |
20160017101 | Reversible Shape Memory Polymers Exhibiting Ambient Actuation Triggering - Shape memory polymers featuring reversible actuation capability under ambient stimulus for integration with apparel. One approach is to use a multiblock polymer consisting of two (or potentially more) blocks in which the one block is the crystalline switching block with relatively low melting transitions, the other block has a higher thermal transition, and the two blocks are linked together by a linker molecule. Another approach is to use a graft copolymer having high and low melting transitions where the graft copolymer has a first polymer serving as the backbone and a second polymer being grafted to or from the backbone at certain graft locations. A further approach is to use latent crosslinking of a semicrystalline polymer with reactive groups placed on the backbone. | 01-21-2016 |
20160017137 | POLYVINYL BUTYRAL RESIN COMPOSITION, MOLDING AND METHOD OF MANUFACTURING POLYVINYL BUTYRAL RESIN COMPOSITION - A PVB resin composition (R) contains PVB resin (P) and a first resin (Q). A resin molding (U) is formed from a resin (T). The resin (T) includes the PVB resin composition (R) added to a second resin (S). The first resin (Q) may be, for example, PE, PP, PS, ABS, PVC, PET, vinyl acetate, PC, acrylic resin or a copolymer thereof, or a plastic container-recycled material containing one of these resins. | 01-21-2016 |
20160194492 | COMPOSITE SUPPORT MATERIAL FOR THREE-DIMENSIONAL PRINTING | 07-07-2016 |
525058000 | With SICP, SPFI, or polymer thereof | 9 |
20080281045 | Ethylene vinyl alcohol compositions - Disclosed are compositions of ethylene acid copolymers and EVOH that are useful for fabricating films, sheets and other shaped articles such as tubing, bottle, fuel tank, tray etc. comprising (1) an ethylene vinyl alcohol copolymer; and (2) a copolymer comprising in-chain copolymerized units of (a) in-chain copolymerized units of ethylene; (b) in-chain polymerized units of an α,β-unsaturated C | 11-13-2008 |
20090312493 | Polylactic acid composition - The present invention relates to a polylactic acid composition, which comprises a polylactic acid, a polyvinyl alcohol, and a grafted polylactic acid. In the present invention, the polylactic acid composition has an improved dyeing property, physical strength, crystal stability, and so forth. Hence, the composition of the present invention can be manufactured into textile fabrics having good strength by melt blowing or reeling. | 12-17-2009 |
20110028648 | THERMOPLASTIC ELASTOMER COMPOSITION - An object of the present invention is, in a thermoplastic elastomer composition in which a modified rubber is dispersed and filled in an ethylene-vinyl alcohol copolymer matrix in order to improve the low-temperature durability of the ethylene-vinyl alcohol copolymer, to reduce the extrusion load during extrusion molding thereof into a film without deteriorating the low-temperature durability. The present invention is a thermoplastic elastomer composition comprising an ethylene-vinyl alcohol copolymer (A) and a modified rubber (B) dispersed in the ethylene-vinyl alcohol copolymer (A), wherein the modified rubber (B) has an acid anhydride group or epoxy group and is dynamically cross-linked by a compound (C) having at least two amino groups. This thermoplastic elastomer composition can be suitably used in the production of an inner liner of a pneumatic tire. | 02-03-2011 |
20120077932 | COMPOSITIONS BASED ON DIISOCYANATES OBTAINED FROM RENEWABLE RAW MATERIALS - The invention relates to compositions based on 2,5-diisocyanato-1,4:3,6-dianhydro-2,5-dideoxy-D-manitol (I), 2,5-diisocyanato-1,4:3,6-dianhydro-2,5-dideoxy-D-glucitol (II), and/or 2,5-diisocyanato-1,4:3,6-dianhydro-2,5-dideoxy-L-iditol (III), alone or in any mixtures. | 03-29-2012 |
20120149844 | Toughened Polyhydroxyalkanoate Compositions - Toughened polyhydroxyalkanoate resin compositions are disclosed, comprising thermoplastic polyhydroxyalkanoate compositions and a toughener comprising a vinyl acetate homopolymer or copolymer and optionally polyvinyl alcohol. | 06-14-2012 |
20130274415 | HYDROGELLING FIBERS AND FIBROUS STRUCTURES - Fibers or one-dimensional, two-dimensional, or three-dimensional fibrous structures configured to be hydrogelling, produced from fibers made of a first fiber raw material, whereby the first fiber raw material contains water-soluble polyvinyl alcohol and/or polyvinyl alcohol copolymer, whereby the hydrogelling configuration of the fibers or fibrous structures is achieved by tempering the fiber raw material at a predetermined tempering temperature that is preferably higher than the glass transition temperature and/or lower than the melting or decomposition temperature of the first fiber raw material employed, as well as by tempering for a predetermined tempering duration, and whereby the fiber raw material is cross-linked by the tempering. | 10-17-2013 |
20140303323 | METHODS FOR PREPARATION OF POLYESTER/GLYOXALATED POLYVINYL ALCOHOL SEMI-INTERPENETRATING POLYMER NETWORK HOT-MELT ADHESIVE - A polyester/glyoxalated polyvinyl alcohol semi-interpenetrating polymer network hot-melt adhesive and preparation method therefore, mainly inlcudes the steps of: 1) transesterification of certain amounts of dimethyl terephthalate and another dibasic ester with 1,4-butanediol and other diols in the presence of an organotin catalyst under a nitrogen atmosphere in a reactor, completed upon the amount of distillation of a monohydric alcohol byproduct reaching greater than 95% of the theoretical amount; 2) after the temperature is maintained for a period of time, adding in a stabilizer and a polycondensation catalyst and incrementally increasing the temperature to trigger a polycondensation reaction under a reduced pressure to produce particles of a copolymer, and freezing and pulverizing the copolymer particles to produce a powder of a copolyester; 3) uniformly blending a polyvinyl alcohol/glyoxal mixture with the powder produced in step 2) at ambient temperature to produce the target product. The product is capable of forming an internal semi-interpenetrating network at application temperatures. | 10-09-2014 |
20150031834 | COMPOSITE POLYAMIDE FINE PARTICLES AND METHOD OF PRODUCING SAME - Composite polyamide fine particles include a polyamide (A1) which has a melting point or a glass transition temperature of over 100° C. and a polymer (A2) which is different from the polyamide (A1). The composite polyamide fine particles have: a dispersion structure in which a plurality of domains each having an average particle diameter of 0.05 to 100 μm whose main component is the polymer (A2) are dispersed in a polyamide (A1) based matrix; an average particle diameter of 0.1 to 500 μm; and a sphericity of 80 or more. | 01-29-2015 |
20160068637 | METHODS FOR PREPARING STABLE UREA FORMALDEHYDE POLYVINYL ALCOHOL COLLOIDS - The mechanical properties of urea formaldehyde resins may be improved by incorporating therein polyvinyl alcohol. The polyvinyl alcohol may be incorporated during pre-mixing, mid mixing, and/or post mixing of the resin components. Resins prepared using polyvinyl alcohol are particularly desirable in articles requiring improved mechanical strength and water resistance, as compared to similar resins prepared without the polyvinyl alcohol such as shingles. | 03-10-2016 |
525059000 | With ethylenic reactant | 4 |
20090012236 | Resin Composition and Film Made of Same - A resin composition is provided which comprises from 50 to 95% by weight of a modified ethylene-vinyl alcohol copolymer (C) obtained by reacting an ethylene-vinyl alcohol copolymer (A) with a monovalent epoxy compound (B) having a molecular weight of 500 or less, and from 5 to 50% by weight of a soft resin (F) that has at least one functional group able to react with a hydroxyl group and has a Young's modulus at 23° C., 50% RH of 500 MPa or less, wherein the soft resin (F) is dispersed with an average particle diameter of 0.1 μm or less in a matrix of the modified ethylene-vinyl alcohol copolymer (C). This resin composition is excellent in barrier properties and also in flex resistance and impact resistance at low temperature. | 01-08-2009 |
20090176937 | METHOD FOR THE MODIFICATION OF POLYVINYL BUTYRALS - The invention relates to a method for modifying acetylized polyvinyl alcohols by reacting the same with epoxides in the polymer melt. Also disclosed is the use of said products in ceramic applications, for example. | 07-09-2009 |
20090253865 | Acetoacetic Ester Group-Containing Polyvinyl Alcohol-Based Resin, Resin Composition, and Uses Thereof - An object of the present invention is to provide a new acetoacetic ester group-containing polyvinyl alcohol-based resin that contains less amount of water-insoluble matter and is excellent in transparency and viscosity stability when converted into an aqueous solution, and that realizes excellent water resistance by combined use of a crosslinking agent. The invention provides an acetoacetic ester group-containing polyvinyl alcohol-based resin containing a structural unit represented by the general formula (1): | 10-08-2009 |
20120259067 | Method for Producing 2-Cyanoethyl Group-Containing Organic Compound - Provided is a method for producing a 2-cyanoethyl group-containing organic compound having a high ratio of replacement by cyanoethyl groups and a high dielectric constant. More specifically, provided is a method for producing a 2-cyanoethyl group-containing organic compound comprising a step of reacting acrylonitrile with a hydroxyl group-containing organic compound in the presence of a quaternary ammonium salt as a catalyst through a Michael addition. | 10-11-2012 |
525060000 | Interpolymers | 5 |
20090111940 | DISPERSION STABILIZER - The aforementioned problems can be solved by a dispersion stabilizer composed of a polyvinyl alcohol polymer (B) having a double bond in its side chain. The polyvinyl alcohol polymer (B) is obtained by esterifying a polyvinyl alcohol polymer (A) with a carboxylic acid having an unsaturated double bond or a salt thereof. Furthermore, the aforementioned problems can be solved with a dispersion stabilizer composed of a carboxylic acid-modified polyvinyl alcohol polymer (C) that is obtained by esterifying a polyvinyl alcohol polymer (A) with aliphatic carboxylic acid and/or aromatic carboxylic acid containing no olefinically unsaturated bond in the molecule or a salt thereof. | 04-30-2009 |
20100280178 | MODIFIED ETHYLENE-VINYL ALCOHOL COPOLYMER AND METHOD FOR THE PRODUCTION THEREOF - Provided is a modified ethylene-vinyl alcohol copolymer (C) having an ethylen content of 5 to 55 mol %, which contains a specific structural unit (I) in an amount of 0.3 to 40 mol % and may be obtained by reacting an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) having a molecular weight of not more than 500. This can be produced by a method for producing the modified ethylene-vinyl alcohol copolymer (C) which comprises melting and kneading an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) in an extruder. The modified ethylene-vinyl alcohol copolymer (C) is superior to a unmodified ethylene-vinyl alcohol copolymer (A) in transparency, stretchability, flexibility and flexing resistance due to the specific structural unit (I) incorporated therein, and thus, can be used as a barrier material in various applications requiring the above performance capabilities. | 11-04-2010 |
20140213727 | WATER SOLUBLE HIGH SYNDIOTACTIC POLYVINYL ALCOHOL - A water soluble polyvinyl alcohol copolymer having a diad syndiotacticity of greater than about 60% and less than about 70%. In some embodiments, the water soluble polyvinyl alcohol copolymer is soluble in water at a concentration of at least 1 wt % at a temperature of less than 100° C. In other embodiments, the composition is soluble in water at a concentration of at least 5 wt % at a temperature in the range from about 90° C. to less than 100° C. The high solubility of the high syndiotactic poly vinyl alcohols disclosed herein may provide various advantages as described herein, including ease of processing and decreased use of harmful solvents. | 07-31-2014 |
20150376319 | Hydrophobic Crosslinkable Acetoacetylated Lactam/Vinyl Alcohol Copolymers - This invention relates to lactam/vinyl alcohol copolymers, and more specifically, to hydrophobic cross-linkable acetoacetylated lactam/vinyl alcohol copolymers suitable for use in a variety of applications including printing, inks, membranes, coatings, adhesives, oil treatment chemicals (such as gas and kinetic hydrate inhibitors), and fiber/textile treatments. | 12-31-2015 |
20190144650 | RESIN COMPOSITION, EXTRUSION-MOLDED ARTICLE, INJECTION-MOLDED ARTICLE AND BLOW-MOLDED ARTICLE | 05-16-2019 |
525061000 | Chemical modification utilizing a chemical treating agent | 20 |
20080312376 | Process for Preparing Copolymers by Anionic Solvent-Free Polymerization - The invention concerns a process for preparing a block or comb copolymer comprising at least one hydrophilic portion and at least two hydrophobic portions, by anionic solvent-free polymerization of a prepolymer selected from a polyethylene glycol and a polyvinyl alcohol, and of a lactone or dilactone monomer. The process is carried out in the presence of an alkaline-earth metal hydride, in an inert atmosphere, and the polymerization step is not carried out under vacuum. The invention also concerns copolymers obtained by this process. | 12-18-2008 |
20090062469 | Method of making an adhesive - A method of making an adhesive is disclosed. The method includes steps of providing a polyvinyl alcohol (PVA) solution in water or a hydrophilic solvent and adding a metal-containing oxidant (such as potassium permanganate) to the PVA solution and allowing the metal-containing oxidant to react under stirring. The metal ion produced in the reaction may bond to the resulting 1,3-diketone structure of the PVA molecular chain to crosslink the PVA molecular chains without adding a crosslinking agent additionally. | 03-05-2009 |
20090131590 | REACTIVE COMPOUNDING OF HYDROGELS - This invention provides methods to form modified hydrogel materials using reactive compounding. The method includes mixing a hydrogel material with a plasticizer in a compounding apparatus. During mixing, a reactive chemical compound is added to the mixture that reacts with the hydrogel material to form a modified hydrogel material. | 05-21-2009 |
20090156741 | Protein Adsorption Prevention Eye Lens Material And Method For Producing Same - The present invention is a method of manufacturing an eye lens material having a process in which a phosphorylcholine group-containing chemical compound represented by the following formula (1) is reacted and covalently bonded onto the surface of an eye lens material wherein the chemical compound represented by the following formula (2) is reacted and covalently bonded through acetal bonding to the eye lens material having OH groups in water, an organic solvent, or a water/organic solvent mixture. | 06-18-2009 |
20090221749 | POLYMER HAVING NAPHTHYL GROUP AND PRODUCING METHOD THEREOF - The object of the present invention is to provide a polymer excellent in transparency and heat resistance. | 09-03-2009 |
20090247698 | Method for esterification of polyvinyl alcohol-based resin, resultant modified polyvinyl alcohol-based resin, and method for production of the same - A gist of the present invention lies in a method for esterification of a polyvinyl alcohol-based resin, wherein a vinyl ester is used as an esterifying agent in a method for esterification of a polyvinyl alcohol-based resin by an esterification reaction using an esterifying agent. The esterification method can esterify the polyvinyl alcohol-based resin at a high reaction rate under mild reaction conditions using relatively simple reaction equipment, and is also applicable to a wide variety of polyvinyl alcohol-based resins without being restricted by polymerization and saponification degrees of the polyvinyl alcohol-based resin. Thus, it is possible to provide a modified polyvinyl alcohol-based resin having excellent physical properties such as polymerization and modification degrees, which is applicable to various applications. | 10-01-2009 |
20100144970 | Method of use of a polyvinyl alcohol-based composition - A composition based on polyvinyl alcohol and a sulfonated ketone/formaldehyde condensate in the preferred mixing ratio of 1:1 as a further component, is provided as a fluid loss additive in mixtures containing hydraulic binders. | 06-10-2010 |
20100298497 | PROCESSES FOR MAKING ETHERSUCCINYLATED HYDROXYL POLYMERS - Processes for making ethersuccinylated hydroxyl polymers are provided. | 11-25-2010 |
20110112248 | METHOD FOR THE PRODUCTION OF POLYVINYL ACETALS HAVING A LOW RESIDUAL ALDEHYDE CONTENT IN WASTE WATER - Aldehyde content of the waste water from polyvinylacetal production from polyvinyl alcohols is reduced by acetalizing a portion of total polyvinyl alcohol, and after precipitation of polyvinyl acetal, adding a further portion of polyvinyl alcohol. | 05-12-2011 |
20110319563 | RESIN COMPOSITION FOR LASER ENGRAVING, RELIEF PRINTING PLATE PRECURSOR FOR LASER ENGRAVING AND PROCESS FOR PRODUCING SAME, AND PROCESS FOR MAKING RELIEF PRINTING PLATE - A resin composition is provided that includes two or more types of compounds selected from the group consisting of (Component A) a compound comprising a silicon atom having a total of one or two alkoxy and hydroxy groups, (Component B) a compound comprising a silicon atom having a total of three alkoxy and hydroxy groups, and (Component C) a compound comprising a silicon atom having a total of four alkoxy and hydroxy groups. There are also provided a relief printing plate precursor that includes a relief-forming layer formed from the resin composition, a process for producing a relief printing plate precursor that includes a layer formation step of forming a relief-forming layer from the resin composition and a crosslinking step of thermally crosslinking the relief-forming layer so as to form a crosslinked relief-forming layer. | 12-29-2011 |
20120296040 | FLUOROOLEFIN/VINYL ALCOHOL COPOLYMER AND PROCESS FOR ITS PRODUCTION - To provide a process for producing a fluoroolefin/vinyl alcohol copolymer with sufficiently high productivity and excellent heat resistance, whereby a quality loss by coloration is prevented, and a fluoroolefin/vinyl alcohol copolymer obtainable by such a process. A process for producing a fluoroolefin/vinyl alcohol copolymer, which comprises a polymerization step of copolymerizing a specific fluoroolefin and a vinyl ether having a hydrogen atom of a hydroxy group of a vinyl alcohol substituted with a protective group which can be deprotected, and a deprotection step of substituting the protective group in polymerized units based on the vinyl ether in the copolymer obtained in the polymerization step, with a hydrogen atom to form a hydroxyl group, and the fluoroolefin/vinyl alcohol copolymer obtainable by such a process. | 11-22-2012 |
20130102730 | POLYAMINE-CONTAINING POLYMERS AND METHODS OF SYNTHESIS AND USE - The present invention relates to polyamine-containing polymers and methods of their synthesis and use. The polymer may be hydroxyethylcellulose, dextran, poly(vinyl alcohol) or poly(methyl acrylate). | 04-25-2013 |
20130123428 | Method for Preparing a Modified Ethylene-Vinyl Alcohol Copolymer - Ethylene-vinyl alcohol copolymers have superior gas barrier properties, but are inferior in bending fatigue resistance. The present invention improves bending fatigue resistance without reducing the gas barrier property and heat resistance. An ethylene-vinyl alcohol copolymer having an ethylene content of 20 to 50 percent by mole is modified by incorporating 0.01 to 1% mol of a structural unit expressed by the following formula (3): | 05-16-2013 |
20130253136 | BIODEGRADABLE PARTICLES, VASCULAR OCCLUSION MATERIAL, AND METHOD FOR PRODUCING BIODEGRADABLE PARTICLES - Spherical biodegradable particles have improved flexibility, cause less aggregation among particles, and have improved particle shape-recovering ability after passing through a catheter or the like. The biodegradable particles include a synthetic polymer chemically cross-linked to a polyvalent carboxylic acid, the biodegradable particles having a water content of 20 to 90% in a water-saturated state. | 09-26-2013 |
20140100333 | POLYVINYL ACETAL WITH HIGH FLOWABILITY AND PACTICIZER-CONTAINING FILMS PRODUCED THEREWITH - The invention relates to polyvinyl acetals obtainable by reacting polyvinyl alcohol with at least one aldehyde with a degree of acetalisation of at least 75 mol %, characterised by an OH blockiness of the polyvinyl acetal, defined as a quotient from the number of methylene groups of two adjacent alcohol sequences (VV) and the sum of the number of methylene groups of adjacent alcohol/acetal sequences and acetal/acetal sequences (VB+BB), of more than 0.151, as well as a process for the preparation thereof. | 04-10-2014 |
20140200312 | Polymers Carrying Hydroxyl Groups And Ester Groups And Method For The Production Thereof - The invention relates to polymers carrying ester/hydroxyl groups, containing repetitive structural units of formulae (I) and (II) in a block-wise, alternating or statistical sequence, wherein D represents a direct bond between the polymer backbone and the hydroxyl group, a C | 07-17-2014 |
20140256881 | ALKALINE ACTIVATION FOR IMMOBILIZATION OF DNA TAGGANTS - The invention provides methods for stably binding and immobilizing deoxyribonucleic acid onto objects and substrates. The method includes exposing the deoxyribonucleic acid to alkaline conditions, and contacting the deoxyribonucleic acid to the object or substrate. The alkaline conditions are produced by mixing the deoxyribonucleic acid with an alkaline solution having a pH of about 9.0 or higher, and contacting the deoxyribonucleic acid to the substrate. The immobilized DNA can be used as a taggant and can be used in combination with other detectable taggants, such as optical reporters. Methods for authentication of a DNA marked object are also provided. | 09-11-2014 |
20160047085 | FIBER REINFORCEMENT WITH 1-SILACYCLOBUTANE CROSSLINK UNITS - Disclosed herein is a composition having a plurality of particles of a filler material and crosslinking units having the formula —(SiR—CH2—CH2—CH2)—. The silicon atom in the crosslinking unit is directly or indirectly bound to the filler material. Each R is alkyl, alkenyl, phenyl, methyl, ethyl, allyl, halogen, chloro, or bromo. Also disclosed herein is a filler material having the silicon atom of a silacyclobutane group is directly or indirectly bound thereto. Also disclosed herein is a method of crosslinking silacyclobutane groups bound to a plurality of particles of a filler material. The silicon atom of the silacyclobutane group is directly or indirectly bound to the filler material. Also disclosed herein is a composition including a plurality of fibers of a polymer having reactive oxygen atoms and siloxane groups. Coordination bonds are formed between the oxygen atoms and the silicon atoms of the siloxane groups of separate fibers. | 02-18-2016 |
20160122447 | POLYMERIC ACID CATALYSTS AND USES THEREOF - Polymers useful as catalysts in non-enzymatic saccharification processes are provided. Provided are also methods for hydrolyzing cellulosic materials into monosaccharides and/or oligosaccharides using these polymeric acid catalysts. | 05-05-2016 |
20160185883 | ORGANO-SILANE MODIFIED POLYMERS AND METHODS FOR THEIR PREPARATION AND USE - Polyvinyl alcohol (PVOH) and polyphenyl sulfone (PPSU) organo-silanes that are stable in high temperature, high UV and/or high humidity environments are described. The PVOH and PPSU organo-silanes are useful for a variety of uses, such as anti-corrosion coatings, barrier coatings, high temperature paints, pharmaceutical coatings, pipe coatings, and tank liners. Additionally, methods for the preparation of the PVOH and PPSU organo-silanes are described herein. | 06-30-2016 |
525062000 | Processes only of preparing polyvinyl alcohol | 8 |
20090163658 | Process for making low color polyvinyl alcohol - A process is provided for the manufacture of polyvinyl alcohol, having an APHA color of equal to or less than about 10, by polymerizing a vinyl acetate monomer to form polyvinyl acetate and then hydrolyzing the polyvinyl acetate to form polyvinyl alcohol wherein the vinyl acetate monomer is characterized as having an inhibitor level of equal to or less than about 10 ppm, preferably less than about 5 ppm, more preferably less than about 3 ppm, even more preferably less than about 1 ppm. | 06-25-2009 |
20110028649 | METHOD FOR PREPARING POLYVINYL ALCOHOL AND POLYVINYL ACETATE LATEX BY USE OF THE BOTTOM RESIDUE FROM VINYL ACETATE PRODUCTION PROCESS - A method for preparing polyvinyl alcohol and polyvinyl acetate latex by use of a kettle bottom residue from vinyl acetate production process includes: distilling a kettle bottom residue of vinyl acetate to obtain a crude acetic acid and a distillation residue; multiple washing the distillation residue with water under boiling condition to obtain a washing residue containing polyvinyl acetate; dissolving a first portion of the washing residue into a first solvent to obtain a first polyvinyl acetate solution; subjecting the first polyvinyl acetate solution to saponification with an alkali aqueous solution; dissolving a second portion of the washing residue into a second solvent; and dispersing the second polyvinyl acetate solution into the polyvinyl alcohol solution, and optionally recovering the solvent to obtain a polyvinyl acetate latex; or adding the second polyvinyl acetate solution into an emulsion reaction system and optionally recovering vinyl acetate, to obtain a polyvinyl acetate latex. | 02-03-2011 |
20110313105 | POLYVINYL ALCOHOL POLYMER AND METHOD FOR PRODUCING THE SAME - The present invention provides a polyvinyl alcohol polymer having excellent water solubility, compared to conventional polyvinyl alcohol polymers, and having a high cloud point even when the polyvinyl alcohol polymer is partially saponified. The present invention is a polyvinyl alcohol polymer having, at its end, a group represented by the general formula (I) and/or having, in its main chain, a group represented by the general formula (II). In the formulae, R denotes a hydrogen atom or an OM group, and M denotes a hydrogen atom, an alkali metal atom, a 1/2 alkaline earth metal atom, or an ammonium group. | 12-22-2011 |
20120329949 | METHOD FOR PRODUCING POLYVINYL ALCOHOL RESIN - Provided is a method of producing a polyvinyl alcohol resin, wherein the impurities in the resin are removed efficiently with a small amount of a washing liquid. | 12-27-2012 |
20120329950 | PRODUCTION METHOD AND PRODUCTION DEVICE FOR POLYVINYL ALCOHOL RESINS - Provided is a method and an apparatus for producing a polyvinyl alcohol that can reduce energy consumption without deterioration in quality of the product polyvinyl alcohol. First, one or more vinyl esters are polymerized or a vinyl ester and other copolymerizable monomers are copolymerized to give a polyvinyl ester. Then, a raw saponification solution containing the polyvinyl ester and an organic solvent is fed through a channel | 12-27-2012 |
20130005905 | PRODUCTION METHOD AND PRODUCTION DEVICE FOR POLYVINYL ALCOHOL - Provided are a method and an apparatus for producing a polyvinyl alcohol that can remove unreacted monomers from the polymerization solution efficiently and reduce the amount of methanol injected. A polymerization solution obtained by polymerization of one or more vinyl esters or copolymerization of a vinyl ester with other monomers copolymerizable therewith is adjusted to a particular concentration by addition of liquid methanol and then brought into contact with methanol vapor in counter-current flow for separation into a monomer-free polymer solution and a monomer/methanol mixture. The monomer-free polymer solution is then saponified in the presence of a catalyst to give a polyvinyl alcohol. | 01-03-2013 |
20130005906 | RESIDUAL MONOMER ELIMINATION DEVICE AND POLYVINYL ALCOHOL RESIN PRODUCTION METHOD - Provided are an apparatus for removing residual monomers and a method of producing a polyvinyl alcohol resin that can prevent drift of the organic solvent gas and residual of the polymerization solution on the trays and permits efficient removal of the unreacted monomers from the polymerization solution. An apparatus | 01-03-2013 |
20140221570 | FLUOROOLEFIN/VINYL ALCOHOL COPOLYMER AND PROCESS FOR ITS PRODUCTION - To provide a process for producing a fluoroolefin/vinyl alcohol copolymer with sufficiently high productivity and excellent heat resistance, whereby a quality loss by coloration is prevented, and a fluoroolefin/vinyl alcohol copolymer obtainable by such a process. A process for producing a fluoroolefin/vinyl alcohol copolymer, which comprises a polymerization step of copolymerizing a specific fluoroolefin and a vinyl ether having a hydrogen atom of a hydroxy group of a vinyl alcohol substituted with a protective group which can be deprotected, and a deprotection step of substituting the protective group in polymerized units based on the vinyl ether in the copolymer obtained in the polymerization step, with a hydrogen atom to form a hydroxyl group, and the fluoroolefin/vinyl alcohol copolymer obtainable by such a process. | 08-07-2014 |