Class / Patent application number | Description | Number of patent applications / Date published |
521182000 | Cellular product derived from a -C-C(=X)-X containing reactant wherein X is a chalcogen atom, e.g., phthalic acid, etc. | 62 |
20080227881 | CELLULOSE ACETATE PROPIONATE FILM, PROCESS FOR PRODUCING CELLULOSE ACETATE PROPIONATE FILM, OPTICAL COMPENSATION SHEET, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE - A cellulose acetate propionate film has a density νe of entanglement points of a polymer chain of cellulose acetate propionate represented by the following expression (A) of from 0.3 to 2.0 moles/dm | 09-18-2008 |
20090036563 | POLYMER BLEND FOR PRODUCING SHAPE-MEMORY FOAM, FOAM THEREOF AND METHOD FOR PRODUCING THE FOAM - A shape-memory polymer foam is disclosed, which is formed by kneading a shape-memory copolyester with a polymeric material having a relatively lower crystallinity in a weight ratio of 15:85 to 85:15 and then conducting a foaming process. The shape-memory copolyester is a random copolymer formed from a dicarboxylic acid mixture and a diol in excess through esterfication and polycondensation. The dicarboxylic acid mixture includes 30-99 mol % of an aromatic dicarboxylic acid and 70-1 mol % of a straight aliphatic dicarboxylic acid of C | 02-05-2009 |
20090082484 | Process for producing extruded polyhydroxyalkanoate resin foam - A process for producing an extruded foam of a poly(3-hydroxyalkanoate) (P3HA) yielded from a microorganism. The foam has a high expansion ratio and a high open cell rate and is excellent in environmental compatibility and biodegradability. The process for producing an extruded P3HA resin foam comprises melt-kneading a P3HA together with a volatile foaming agent to produce a mixture and extruding the mixture through a molding die into a low-pressure region, and is characterized in that the resin temperature To at the time when the mixture of a P3HA and a volatile foaming agent is extruded from the extruder (resin temperature measured at the extruder ejection opening with a thermocouple) is in the range shown by the following relationship. | 03-26-2009 |
20100317761 | WINDOW COVERING - A window covering has at least an element made of polyethylene terephthalate mixed with a filler, wherein the polyethylene terephthalate has a melt strength greater than 500 Pa·s, and a ratio of the filler is between 2% and 40% by weight, and the polyethylene terephthalate is mixed with the filler in an environment with the temperature between 200 and 350. The mixture is put into an extruder for extrusion to have a long member, and then the long member is cooled for solidification and is cut to make the window covering element. The element of the window covering has a well rigidity, heat resistant, and light fastness property, and most of all, it is recyclable. | 12-16-2010 |
20110046254 | WHITE POROUS POLYESTER FILM AND PREPARATION METHOD THEREOF - A white porous polyester film of the present invention comprising a polyester-based monopolymer/copolymer blend, a crystalline polymer resin which is not miscible with a polyester and has a heat deformation temperature of 90° C. or higher, inorganic particles, a whitening agent, and a stabilizing agent has improved optical properties, and thus is useful as a film for use in printing, labeling, electronics, and display applications. | 02-24-2011 |
20110082227 | FOAMED POLYESTERS AND METHODS FOR THEIR PRODUCTION - Foam bodies made of thermoplastic polyesters with high homogeneity, a low open-cell factor and high elongation at break under shear stress, the polyester foam containing at least one thermoplastic elastomer such as a thermoplastic copolyester elastomer, in quantities of, for example, 0.5 to 15% by weight based on the weight of the foam body. The foam bodies can be obtained by foaming a starting polyester with low intrinsic viscosity in a mixture with a modification means in the form of a premix containing dianhydrides of tetracarboxylic acids and thermoplastic copolyester elastomers. | 04-07-2011 |
20110130480 | COPOLYESTER FOR SHRINK FILM APPLICATIONS - The present invention relates to a polyester composition comprising a diacid component and a diol component, wherein the diacid component comprises: i) isophthalic acid present at a concentration in the range of from about 23 mole % to about 30 mole % of the total diacid, and ii) terephthalic acid; and wherein the diol component comprises: i) diethylene glycol present at a concentration in the range of from about 1.1 mole % to about 3.5 mole % of the total diol, and ii) ethylene glycol. Other embodiments of the present invention include a film produced from the polyester composition and processes for producing the film. | 06-02-2011 |
20110160328 | PROCESS FOR MAKING UNIFORM POLYMER BEADS - A process for making substantially uniform polymer particles in an aqueous dispersion comprising forming a monomer emulsion with an emulsifying agent, at least one monomer molecule, and an initiator; adding the monomer emulsion to at least a stabilizing agent and a plurality of oligomeric droplets; and polymerizing the at least one monomer molecule to form an aqueous dispersion of polymer particles. | 06-30-2011 |
20110224323 | POLYESTERS, METHODS OF THEIR PREPARATION AND USE - Crosslinked polycondensation products of: (a) polyols selected from the group consisting of: (1) polyols with three or more hydroxyl groups, (2) acetal forms of (1), and (3) mixtures thereof, and (b) polyacids selected from the group consisting of: (1) polyacids with two or more carboxylic groups, (2) anhydrides of (1), (3) esters of (1), and (4) mixtures thereof are disclosed. The resulting polyesters have a molar ratio of polyol to polyacid from about 1:3 to about 3:1 and are highly-crosslinked. Preferred monomers are sustainable monomers such as glycerol, citric acid, fumaric acid, and sebacic acid. Two-step heating processes for preparing the high molecular weight polyesters are also provided. | 09-15-2011 |
20110263745 | Flame Retardant Combinations For Polyesters And Flame Retarded Polyester Moulding Compositions Therefrom - Disclosed are new compositions consisting of mixtures of flame retardants for thermoplastic polyesters based on a phosphinate salt, phosphonate oligomers, polymers or copolymers and a melamine derivative. The compositions exhibit an excellent combination of processing characteristics, thermal and mechanical properties, and are flame retardant. Further disclosed are articles of manufacture produced from these materials, such as fibers, films, coated substrates, moldings, foams, fiber-reinforced articles, or any combination thereof. | 10-27-2011 |
20110263746 | THERMALLY EXPANDABLE MICROCAPSULE AND FOAM-MOLDED ARTICLE - The present invention has its object to provide a thermally expandable microcapsule, which shows excellent heat resistance and a high expansion ratio and thereby can be suitably used for molding processes involving high shearing force, such as kneading molding, calender molding, extrusion molding, and injection molding. The present invention also has its object to provide a foamed product using the thermally expandable microcapsule. The present invention relates to a thermally expandable microcapsule, which comprises: a shell made of a polymer; and a volatile expansion agent as a core agent encapsulated in the shell, the storage elastic modulus (E′) of the shell at a temperature of 200° C. and a frequency of 10 Hz being 1×10 | 10-27-2011 |
20120157560 | KETAL ESTERS OF ANHYDROPENTITOLS AND USES THEREOF - The present disclosure relates to the preparation of ketal compounds from anhydropentitols and oxocarboxylates; derivatives, homopolymers, and copolymers thereof; and various compositions, formulations, and articles derived therefrom. | 06-21-2012 |
20120220680 | BIODEGRADABLE ALIPHATIC-AROMATIC POLYESTER - The present invention relates to biodegradable aliphatic-aromatic polyesters obtained from aliphatic dicarboxylic acids, polyfunctional aromatic acids and diols, wherein the polyfunctional aromatic acids are constituted by mixtures of acids of renewable and synthetic origin. | 08-30-2012 |
20120225966 | Film Formed from a Blend of Biodegradable Aliphatic-Aromatic Copolyesters - A film that is formed from a biodegradable polymer blend of different aliphatic-aromatic copolyesters is provided. More specifically, the blend contains a first copolyester formed from a terephthalic acid monomer. The use of a terephthalic acid monomer results in a polymer chain containing 1,4-(para-)terephthalate units linked in a generally linear configuration (e.g., ˜180°). The blend also contains a second aliphatic-aromatic copolyester formed from a phthalic acid and/or isophthalic acid monomer. | 09-06-2012 |
20120225967 | INTERCONNECTED CELL POROUS BODY AND MANUFACTURING METHOD THEREOF - Disclosed is a water absorbent material and an interconnected cell porous body which can be optimally used as a flower arranging pedestal and a plant culture medium. The interconnected cell porous body is formed from a resin composition with a polylactic acid-based resin as the main component. The pore walls, formed by joining together the crushed powder fragments formed by crushing the foam of the aforementioned resin composition, form the interconnected cell structure of the aforementioned porous body. The apparent density greater of the interconnected cell porous body is than or equal to 0.01 g/cm3 and a less than or equal to 0.2 g/cm3; the 10% compression stress is greater than or equal to 0.02 MPa and less than or equal to 0.3 MPa; and the compression recovery rate is less than or equal to 95%. The water absorbent material comprises the interconnected cell porous body. | 09-06-2012 |
20120245244 | Cleavable block copolymers, functionalized nanoporous thin films and related methods of preparation - Cleavable, disulfide-coupled block copolymers as can be used in the preparation of nanoporous thin films, micellar configurations and related structures. | 09-27-2012 |
20120316257 | BIODEGRADABLE COMPOSITION COMPRISING POLYMERS OF NATURAL ORIGIN AND ALIPHATIC-AROMATIC COPOLYESTERS - The present invention relates to a biodegradable composition comprising at least one polymer of natural origin and at least one aliphatic-aromatic copolyester obtained starting from mixtures comprising aliphatic diols, polyfunctional aromatic acids, and at least two aliphatic dicarboxylic acids, at least one of which is long chain. Said composition combines improved biodegradability, excellent mechanical properties, a high level of industrial processability, limited environmental impact as well as stability of physical properties under the influence of environmental factors. | 12-13-2012 |
20120322908 | MIXTURES OF BIODEGRADABLE POLYESTERS WITH AT LEAST ONE POLYMER OF NATURAL ORIGIN - The present invention relates to mixtures comprising of biodegradable polyesters comprising at least one polymer of natural origin and at least two aliphatic-aromatic polyesters of the diacid-diol type of which at least one with a high content of long chain aliphatic diacids of renewable origin showing excellent mechanical properties, sufficiently high melting temperatures, adequate crystallization rates, improved biodegradability properties as well as stability of physical properties over time. | 12-20-2012 |
20130059938 | EXTRUSION EXPANSION OF LOW MOLECULAR WEIGHT POLYALKYLENE TEREPHTHALATE FOR PRODUCTION OF EXPANDED BEADS - An extrusion expansion of low molecular weight polyalkylene terephthalates having an IV of below 1.0 dl/g to produce gas-charged beads is disclosed. The process includes an extrusion expanding of the resins and an underwater pelletizing of the melt threads. The obtained beads show a composite structure and are characterized by an IV of 0.69 dl/g or more and a melt viscosity η | 03-07-2013 |
20130065981 | Multi-layered Foamed Polymeric Objects and Related Methods - The invention disclosed herein relates to relates to foamed thermoplastic material objects and articles of manufacture having an internal layered cellular structure, as well as to methods of making the same. In one embodiment, the invention is directed to a multi-layer foamed polymeric article of manufacture, comprising: a non-laminated multi-layer thermoplastic material sheet, wherein the multi-layer thermoplastic material sheet has first and second discrete outer layers sandwiching a plurality of discrete inner foamed layers, and wherein the two outer layers and plurality discrete inner foamed layers are integral with one another. The thermoplastic material may be a semi-crystalline polymer such as, for example, PET (polyethylene terephthalate), PEEK (polyetheretherketone), PEN (polyethylene napthalate), PBT (polybutylene terephthalate), PMMA (polymethyl methacrylate), PLA (polyactide), polyhydroxy acid (PHA), thermoplastic urethane (TPU), or blends thereof. The two outer layers may be unfoamed skin layers having smooth outer surfaces, and the discrete inner foamed layers may be microcellular. | 03-14-2013 |
20130085201 | KETAL LACTONES AND STEREOSPECIFIC ADDUCTS OF OXOCARBOXYLIC KETALS WITH TRIMETHYLOL COMPOUNDS, POLYMERS CONTAINING THE SAME, METHODS OF MANUFACTURE, AND USES THEREOF - Ketal lactones of and methods for making such ketal lactones are disclosed. Also described are methods for making isolated cis- and trans-stereoisomers of hydroxyester ketals of oxocarboxylic acids and polymers having ketal units of such stereoisomers within the polymer backbone. | 04-04-2013 |
20130090401 | BIODEGRADABLE COMPOSITE MATERIALS - A method of making a biodegradable composite is carried out by: (a) providing an aqueous mixture comprising partially hydrolyzed cellulose in a dissolution media; (b) providing a solution comprising a aliphatic polyester in a polar organic solvent; (c) combining the mixture with the solution to form a precipitate; (d) washing the precipitate with water to remove solvent and dissolution media and form a wet biodegradable composite; and then (e) drying the wet biodegradable composite to form a dry biodegradable composite. Composites made from the method are also described. | 04-11-2013 |
20130131209 | Polyglycolic Acid Particle, Production Process of Polyglycolic Acid Particle, and Use Thereof - Polyglycolic acid particles comprising polyglycolic acid having (a) at least 70% by mol of a glycolic acid repeating unit, (b) Mw of 30,000 to 800,000, (c) Mw/Mn of 1.5 to 4.0, (d) a melting point of 197 to 245° C. and (e) a melt crystallization temperature T | 05-23-2013 |
20130172438 | THERMOPLASTIC RESIN FOAM, METHOD OF PRODUCING THE SAME, AND LIGHT REFLECTING MATERIAL THEREOF | 07-04-2013 |
20130225710 | EXTENSIONAL FLOW HEAT EXCHANGER FOR POLYMER MELTS - An extensional flow static heat exchanger with at least two components of tubular cooling elements arranged in a flow passage, wherein the components are successively arranged in the flowing direction, each component having a first and a second set of at least two cooling elements, the cooling elements of the first set being angularly offset to the cooling elements of the second set, the cross sections of the cooling elements have a convex profile on the upstream and downstream side or a droplet shape, the cooling elements of the first and the second set, respectively of the adjacent component are arranged at least partially in the space between two cooling elements of the first and second set, respectively of the previous component, a process for producing a low density extruded thermoplastic foam material and a low density extruded thermoplastic foam material. | 08-29-2013 |
20130345332 | Low Dust, Light Weight Filler Composition - A filler composition for use in a casting formulation, where the filler composition includes a mineral filler, hollow plastic microspheres, and a food grade and non-flammable liquid, and where when the filler composition is mixed with a casting resin an OSHA 8-hour Permissible Exposure Limit set for Particulates Not Otherwise Regulated is not exceeded. | 12-26-2013 |
20140018460 | COMPOSITIONS FOR IMPROVING POLYESTERS - A method for altering the melt characteristics of a polyester, such as the melt strength, the method comprising the step of melt mixing the polyester, with a tetracarboxylic dianhydride; across-linker and chain extender comprising at least two groups being able to react with a carboxy group and a phenolic hydroxyl group; and a poly functional compound comprising at least two groups selected from the group consisting of non-sterically hindered phenolic hydroxyl groups, and carboxy groups. | 01-16-2014 |
20140051780 | COPOLYESTERS HAVING REPEAT UNITS DERIVED FROM w-HYDROXY FATTY ACIDS - The present invention relates to aliphatic or aliphatic-aromatic polyesters and copolyesters comprised of biobased ω-hydroxyfatty acids or derivatives thereof, processes for the preparation thereof, and compositions thereof having improved properties. The copolyesters of the present invention may also contain additional components that can be selected from aliphatic or aromatic diacids, diols and hydroxyacids obtained from synthetic and natural sources. The biobased ω-hydroxyfatty acids that comprise the polyesters and copolyesters of the present invention are made using a fermentation process from pure fatty acids, fatty acid mixtures, pure fatty acid ester, mixtures of fatty acid esters, and triglycerides from various sources. The polyesters of the present invention may contain various amounts and types of ω-carboxyfatty acids depending on the engineered yeast strain used for the bioconversion as well as the feedstock(s) used. | 02-20-2014 |
20140179819 | POROUS MATERIALS, METHODS OF MAKING AND USES - The present specification discloses porous materials, methods of forming such porous materials, biocompatible implantable devices comprising such porous materials, and methods of making such biocompatible implantable devices. | 06-26-2014 |
20140235741 | POLYLACTIC ACID-BASED RESIN EXPANDED BEADS AND MOLDED ARTICLE THEREOF - Polylactic acid-based resin expanded beads of the present invention are obtained by releasing a softened, pressurized foamable resin composition, which comprises a polylactic acid-based resin and a physical blowing agent, to a low pressure atmosphere to foam and expand the resin composition, wherein the polylactic acid-based resin satisfies the conditions (1) to (3) shown below, and exhibits excellent secondary expansion properties and fusion bonding properties. A polylactic acid-based resin expanded beads molded article obtained by in-mold molding of the polylactic acid-based resin expanded beads exhibits excellent mechanical properties. | 08-21-2014 |
20150065597 | METHOD FOR PRODUCING POROUS POLYMER FILM AND POROUS POLYMER FILM - Disclosed is a method for producing a porous polymer film. This method includes the steps of: (I) irradiating a polymer film with an ion beam of accelerated ions so as to form a polymer film that has collided with the ions in the beam; and (II) chemically etching the polymer film formed in the step (I) so as to form openings and/or through holes corresponding to tracks of the colliding ions left in the polymer film. In the step (I), the polymer film is placed in an atmosphere with a pressure of 100 Pa or more, and the polymer film placed in the atmosphere is irradiated with the ion beam that has passed through a beam line maintained at a lower pressure than the pressure of the atmosphere and through a pressure barrier sheet disposed at an end of the beam line to separate the beam line from the atmosphere. | 03-05-2015 |
20150111977 | Low Dust, Light Weight Filler Composition - A filler composition for use in a casting formulation, where the filler composition includes a mineral filler, hollow plastic microspheres, and a food grade and non-flammable liquid, and where when the filler composition is mixed with a casting resin an OSHA 8-hour Permissible Exposure Limit set for Particulates Not Otherwise Regulated is not exceeded. | 04-23-2015 |
20150291733 | METHOD FOR THE PRODUCTION OF A HIGH-MOLECULAR POLYESTER OR COPOLYESTER AND ALSO OF A POLYMER BLEND COMPRISING THESE - The invention relates to a method for the production of a high-molecular polyester or copolyester which comprises at least three method steps. In a first method step, a paste is produced from at least one aromatic dicarboxylic acid or the diester thereof or the acid anhydride thereof and also from at least one aliphatic dicarboxylic acid or the diester thereof or acid anhydride thereof and also from at least one dialcohol and also the required quantity of transesterification- or polycondensation catalyst. This paste is converted into a prepolymer in a second step at increased temperature and, in the third method step, this obtained prepolymer is polycondensed or copolycondensed at reduced pressure relative to normal conditions. The implementation of the method can be effected continuously and also discontinuously. Furthermore, the invention relates to polyesters and copolyesters produced in this way and also to biodegradable polymer blends comprising these. The polyesters and copolyesters according to the invention are used for the production of compostible moulded articles, biodegradable foams and paper-coating means. | 10-15-2015 |
20150329689 | FOAM SHEET USING POLYLACTIC ACID HAVING EXTENDED CHAIN AND METHOD FOR PREPARING THE SAME - Disclosed is a foam sheet using polylactic acid, which provides the advantages of energy reduction and greenhouse gas reduction, and does not emit toxic substances such as toxic gas or endocrine-disrupting chemicals. The foam sheet, according to the present invention, comprises at least one resin layer comprising a biodegradable resin composition including the polylactic acid having an extended chain, a plasticizer, and a foaming agent, and thus provides the advantages of superior processing properties, superior water resistance after processing, energy reduction and greenhouse gas reduction, and of not emitting toxic substances such as toxic gas or endocrine-disrupting chemicals. | 11-19-2015 |
20150359947 | PLASTICIZERS FOR A BIODEGRADABLE SCAFFOLDING AND METHODS OF FORMING SAME - Methods of making polymeric devices, such as stents, with one or more modifications such as addition of plasticizers, to improve processing, and the devices made by these methods. | 12-17-2015 |
20160032044 | Process For Producing Articles Formed From Polylactic Acid and Articles Made Therefrom - PLA polymers that can be expanded into microporous articles having a node and fibril microstructure are provided. The fibrils contain PLA polymer chains oriented with the fibril axis. Additionally, the PLA polymers have an inherent viscosity greater than about 3.8 dL/g and a calculated molecular weight greater than about 150,000 g/mol. The PLA polymer article may be formed by bulk polymerization where the PLA bulk polymer is made into a preform that is subsequently expanded at temperatures above the glass transition temperature and below the melting point of the PLA polymer. In an alternate embodiment, a PLA polymer powder is lubricated, the lubricated polymer is subjected to pressure and compression to form a preform, and the preform is expanded to form a microporous article. Both the preform and the microporous article are formed at temperatures above the glass transition temperature and below the melting point of the PLA polymer. | 02-04-2016 |
20160046761 | BIODEGRADABLE SIDE CHAIN LIQUID CRYSTAL ELASTOMERS: SMART RESPONSIVE SCAFFOLDS (SRS) FOR TISSUE REGENERATION - Controlled biodegradable smart responsive scaffold (SRS) materials enhance attachment and viability of cells, i.e. actively guiding their expansion, proliferation and in some cases differentiation, while increasing their biomechanical functionality is an important key issue for tissue regeneration. Chemically build-in functionality in these biodegradable SRS materials is achieved by varying structural functionalization with biocompatible liquid crystal motifs and general polymer composition allowing for regulation and alteration of tensile strength, surface ordering, bioadhesion and biodegradability, bulk liquid crystal phase behavior, porosity, and cell response to external stimuli. Liquid crystal modification of such polymeric scaffolds is an ideal tool to induce macroscopic ordering events through external stimuli. None of these approaches have been demonstrated in prior art, and the use of biocompatible scaffolds that respond to a variety of external stimuli resulting in a macroscopic ordering event is a novel aspect of the present invention. | 02-18-2016 |
20160075842 | POLYMERIC FOAM - Polymeric foam, characterized in that the polymeric foam is produced from a polymer composition comprising a polyester containing monomeric units of a dimerised fatty acid and/or a derivative thereof and further monomer units of at least one dicarboxylic acid and at least one diol, which polymer composition is uncrosslinked. | 03-17-2016 |
20160122489 | Rapid Solid-State Foaming - Disclosed, among other things, are ways to manufacture reduced density thermoplastics using rapid solid-state foaming and machines useful for the saturation of plastic. In one embodiment, a foaming process may involve saturating a semi-crystalline polymer such as Polylactic Acid (PLA) with high levels of gas, and then heating, which may produce a reduced density plastic having high levels of crystallinity. In another embodiment, a foaming process may produce layered structures in reduced density plastics with or without integral skins. In another embodiment, a foaming process may produce deep draw structures in reduced density plastics with or without integral skins. In yet another embodiment, a foaming process may utilize additives, blends, or fillers, for example. In yet another embodiment, a foaming process may involve saturating a semi-crystalline polymer such as Polylactic Acid (PLA) with high levels of gas, and then heating, which may produce a reduced density plastic having high levels of crystallinity. | 05-05-2016 |
521183000 | Nitrogen containing reactant | 23 |
20100240787 | CO-POLYMER BASED POLYIMIDE ARTICLES AND THEIR USES N HIGH TEMPERATURE APPLICATIONS - Disclosed herein is a method for making polyimide articles that are suitable for high temperature applications. The articles disclosed herein are rigid, oxidatively stable, wear-resistant, and permeable to heated moisture and gases, and comprise co-polymer based polyimide, and at least one additive or filler, and are made using 20,000 to 50,000 psi of compression pressure. | 09-23-2010 |
20100240788 | ARTICLES MADE FROM CO-POLYMER BASED POLYIMIDE AND THEIR USES IN AEROSPACE APPLICATIONS - Disclosed herein is a method for making polyimide articles that are suitable for high temperature applications. The articles disclosed herein are rigid, oxidatively stable, wear-resistant, and permeable to heated moisture and gases, and comprise co-polymer based polyimide, and at least one additive or filler, and are made using 20,000 to 50,000 psi of compression pressure. | 09-23-2010 |
20110086935 | PICOLYLAMINE RESINS - The present application relates to novel monodisperse, gel-type or macroporous picolylamine resins which are based on at least one monovinylaromatic compound and at least one polyvinylaromatic compound and/or a (meth)acrylic compound and contain tertiary nitrogen atoms in structures of the general formula (I) | 04-14-2011 |
20110313075 | ALIPHATIC POLYESTER - The present invention provides a copolymer obtainable by condensation of
| 12-22-2011 |
20120108694 | METHOD FOR SYNTHESISING A BLOCK COPOLYMER ALLOY HAVING IMPROVED ANTISTATIC PROPERTIES - The invention relates to a method for synthesising a block copolymer alloy including at least one rigid polyamide block PA, including the steps of: a) producing said block copolymer; b) adding, during step a) and to at least a portion of said block copolymer, 0.1 to 30 wt % of at least one organic salt in the molten state relative to the total weight of the alloy, so that the alloy thus obtained has improved antistatic properties and identical mechanical properties when compared to the same polymer produced without adding an organic salt. The invention also relates to a block copolymer alloy having improved antistatic properties and obtained by said method, to the use thereof in a polymer matrix, and to a composition containing same. | 05-03-2012 |
20130059939 | METHOD OF FOAM MOLDING OF RESIN REINFORCED WITH FLAT GLASS FIBERS - Provided is a method for producing glass-fiber-reinforced molded resin foam which retains intact material properties inherent in glass-fiber-reinforced molded resins, has a finely and evenly foamed state, and has excellent mechanical strength, and which can be reduced in weight. The method for producing glass-fiber-reinforced molded resin foam comprises subjecting a resin, flat glass fibers, and a blowing agent to injection molding. | 03-07-2013 |
20140364529 | SEQUENTIAL/SIMULTANEOUS MULTI-METALIZED NANOCOMPOSITES (S2M2N) - Sequential and simultaneous methods of making a multi-metalized nanocomposite. A method includes providing a porous matrix, dissolving at least a first metal or metalloid precursor and a second metal or metalloid precursor in a supercritical carbon dioxide (CO | 12-11-2014 |
20150141544 | POROUS CROSS-LINKED POLYIMIDE NETWORKS - Porous cross-linked polyimide networks are provided. The networks comprise an anhydride end-capped polyamic acid oligomer. The oligomer (i) comprises a repeating unit of a dianhydride and a diamine and terminal anhydride groups, (ii) has an average degree of polymerization of 10 to 50, (iii) has been cross-linked via a cross-linking agent, comprising three or more amine groups, at a balanced stoichiometry of the amine groups to the terminal anhydride groups, and (iv) has been chemically imidized to yield the porous cross-linked polyimide network. Also provided are porous cross-linked polyimide aerogels comprising a cross-linked and imidized anhydride end-capped polyamic acid oligomer, wherein the oligomer comprises a repeating unit of a dianhydride and a diamine, and the aerogel has a density of 0.10 to 0.333 g/cm | 05-21-2015 |
20160032068 | POLYAMIDE RESIN COMPOSITION FOR FOAM MOLDED BODY, AND FOAM MOLDED BODY OF POLYAMIDE RESIN COMPRISING SAME - The present invention relates to a polyamide resin composition for a foam molded body, comprising a crystalline polyamide resin (A), carbon black (B) which does not exhibit crystallization promoting action to said crystalline polyamide resin and an inorganic reinforcing material (C), wherein, when the total amount of (A), (B) and (C) is taken as 100% by mass, the composition comprises (A) and (B) in a rate of 60 to 90% by mass in terms of the sum thereof and comprises (C) in a rate of 10 to 40% by mass, and wherein melting point and crystallization temperature of said polyamide resin composition have a specific relationship. The above-mentioned polyamide resin composition can provide a polyamide foam molded body having light weight, high load bearing property and good molded appearance. | 02-04-2016 |
20160159981 | Peptide-Based Materials - The subject invention pertains to peptide-based materials comprising cross-linked peptides with random amino acid sequences that are soluble in water or ethanol before crosslinking but insoluble in water after crosslinking. | 06-09-2016 |
521184000 | Nitrogen reactant contains at least two amino nitrogen atoms | 13 |
20100048755 | POROUS POLYMERIC MATERIAL WITH CROSS-LINKABLE WETTING AGENT - A porous material is provided which comprises a transparent polymer matrix defining interconnected pores and a wetting agent. At least a portion of the wetting agent is cross-linked with the polymer matrix. A process for forming a porous polymeric material is also provided. A bicontinuous microemulsion comprising water, a wetting agent, a monomer, and a surfactant copolymerizable with the monomer is polymerized, to form a polymer defining interconnected pores. The wetting agent comprises a cross-linkable wetting agent such that after polymerization, at least a portion of the cross-linkable wetting agent is cross-linked with the polymer. The wetting agent may comprise acrylated hyaluronic acid (AHA) such as methacrylated hyaluronic acid (MeHA). The wetting agent may also comprise a hyaluronic acid (HA). The wetting agent may include an unbonded portion that this releasable from the material. A contact lens may be made from the porous material. | 02-25-2010 |
20100152313 | PROCESS FOR PREPARATION OF HIGH-MOLECULAR-WEIGHT POLYAMIDES - Process for preparation of high-molecular-weight polyamides, which comprises reacting a polyamide A) at a temperature of from 150 to 350° C. with a compound B) which at this reaction temperature liberates isocyanic acid, where the concentration of the amino end groups in the polyamide A) used is greater than or equal to the concentration of the carboxy end groups. | 06-17-2010 |
20110065823 | POLYIMIDE-CO-POLYBENZOXAZOLE COPOLYMER, PREPARATION METHOD THEREOF, AND GAS SEPARATION MEMBRANE COMPRISING THE SAME - Disclosed herein are a polyimide-polybenzoxazole copolymer, a method for preparing thereof and a gas separation membrane comprising the same. More specifically, provided are a polyimide-polybenzoxazole copolymer simply prepared through thermal-rearrangement performed by thermally treating a polyimide-poly (hydroxyimide) copolymer as a precursor, a method for preparing the same, and a gas separation membrane comprising the same. The copolymer shows superior gas permeability and gas selectivity, thus being suitable for use in gas separation membranes in various forms such as films, fibers or hollow fibers. The gas separation membrane thus prepared can advantageously endure even harsh conditions such as long operation time acidic conditions and high humidity due to the rigid polymer backbone present in the copolymer. | 03-17-2011 |
20110218265 | POLYIMIDE FOAM AND METHOD FOR PRODUCING SAME - Disclosed is a polyimide foam made of an aromatic polyimide composed of a tetracarboxylic acid component, which is composed of 0 to 90% by mole of a 3,3′,4,4′-biphenyltetracarboxylic acid component and 100 to 10% by mole of a 3,3′,4,4′-benzophenone tetracarboxylic acid component and/or a 2,3,3′,4′-biphenyltetracarboxylic acid component, and a diamine component, which is composed of 50 to 97% by mole of m-phenylenediamine and 50 to 3% by mole of 4,4′-methylenedianiline. The polyimide foam can be produced easily, has uniform and fine cells, and has the mechanical properties required for practical use as a foam, such as flexibility that prevents the foam from cracking easily even when deformed and excellent cushioning properties, as well as heat resistance that can resist use at high temperatures. | 09-08-2011 |
20130030075 | POLYMERS MADE OF RENEWABLE RESOURCES - Polycondensates with long-chain linear methylene sequences, their production, a method for producing linear odd-numbered C | 01-31-2013 |
20130203881 | CONVERSION OF CORN GLUTEN MEAL INTO A SOLID ARTICLE THROUGH THE USE OF A NON-TOXIC ADDITIVE - Disclosed are fast-curing, inexpensive corn-gluten resin compositions, methods for making them, methods for forming them into solid articles. In some embodiments, the resin composition includes corn meal gluten and a non-toxic organic acid. | 08-08-2013 |
20150094391 | SYSTEM FOR COVERING HYDROCARBON LIQUIDS AND METHOD OF FORMING SAME - A method of forming an element to float at least partially on a surface of an at least partially liquid hydrocarbon mixture. The method includes mixing a polymer resin and a foaming agent together in preselected proportions to provide a material mixture, and heating the material mixture, to at least partially liquefy it. The material mixture is injected into a mold cavity configured to define the element's exterior surface in a series of at least three steps, commencing with an initial step. In each step, the material mixture is injected over a predetermined time period at a predetermined velocity and under a predetermined pressure. Each predetermined velocity in the steps following the initial step is less than the predetermined velocity in an immediately preceding step thereof. Each predetermined pressure in the steps following the initial step is less than the predetermined pressure in the immediately preceding step thereof. | 04-02-2015 |
20150299383 | FOAM COMPOSITIONS - Foam compositions are provided. The compositions are prepared from multi-functional acetoacetate esters and multi-functional amines or acrylates. The foam compositions can include one or more additives. The foam compositions can be used for home and commercial insulation, air sealing, sound proofing, structural improvement, and exterior roofing, among other applications. The foam compositions provide advantages of being isocyanate free and offer reduced exposure to isocyanate. | 10-22-2015 |
20150329675 | POLYETHERIMIDE POROUS BODY AND METHOD FOR PRODUCING SAME - Provided are: a polyetherimide porous body which has a low relative permittivity and is not easily cracked (or is excellent in cracking resistance) when folded, and a method for producing the porous body. This polyetherimide porous body comprises a polyetherimide crosslinked body and has a gel fraction of 10% or more, an average cell diameter of 8 μm or less, a volume porosity of 30% or more and an insulation breakdown voltage of 30 kV/mm or more. | 11-19-2015 |
20160096928 | POLYIMIDES, PROCESSES FOR PRODUCING SAID POLYIMIDES AND ARTICLES OBTAINED FROM SAID POLYIMIDES - The present invention relates to (co)polymers comprising at least one imide function, making use of at least one diamine chosen from 2,5-bis(aminomethyl)furan and 2,5-bis(aminomethyl)tetrahydrofuran, or diisocyanate equivalents thereof. These (co)polymers can be converted into articles by various methods. | 04-07-2016 |
521185000 | Carbocyclic reactant containing -C-C(=X)-X, e.g., containing carboxyl, etc. | 3 |
20130053467 | POROUS ABPBI [POLY (2, 5-BENZIMIDAZOLE)] MEMBRANE AND PROCESS OF PREPARING THE SAME - The present invention relates to a porous ABPBI (phosphoric acid doped poly(2,5-benzimidazole)) membrane and process of preparing the same. A stable porous ABPBI (Phosphoric Acid Doped Poly(2,5-benzimidazole)) membrane stable to acids, bases, solvents and autoclaving is disclosed. The membrane finds use for separation of solutes in solution in acids, bases and solvents | 02-28-2013 |
20130281563 | POLYAMIDE POLYMER, METHOD FOR PRODUCING SAME, RESIN COMPOSITION, MOLDED PRODUCT, FIBER, FILM, POROUS FILM - Provided is a polyamide polymer in which a partial structure represented by the following formula (C) constitutes a portion of the main chain: | 10-24-2013 |
20150329676 | THERMOPLASTIC POLYIMIDE, THERMOPLASTIC POLYIMIDE FOAM BODY, AND METHOD FOR PRODUCING THE SAME - A thermoplastic polyimide, including a repeating unit represented by the following General Formula I, wherein an amount of an organic solvent in the thermoplastic polyimide detected by gas chromatography is 5 ppm by mass or less, | 11-19-2015 |