| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 528274000 |
Polymerizing in the presence of a specified material other than reactant
| 106 |
| 528308000 |
Aryl-containing carboxylic acid or derivative of an aryl-containing dicarboxylic acid
| 74 |
| 528288000 |
Nitrogen-containing reactant
| 49 |
| 528302000 |
Two or more carboxylic acid or derivatives or mixtures thereof
| 42 |
| 528300000 |
Polyhydroxy-containing compound or salt thereof having an ether-oxygen atom as reactant
| 15 |
| 528296000 |
Reactant contains three or more carboxylic acid groups or is derivative thereof
| 13 |
| 528298000 |
Fused- or bridged-ring-containing reactant other than solely as cyclic acid anhydride group
| 12 |
| 528307000 |
Cycloaliphatic ring-containing reactant (other than aryl)
| 10 |
| 528287000 |
Phosphorus-containing reactant
| 9 |
| 528293000 |
Sulfur-containing reactant
| 8 |
| 528299000 |
Halogen-containing reactant other than solely as halogen atom bonded to a carbonyl group | 3 |
| 20100152410 | HIGH MOLECULAR WEIGHT POLYMERS, DEVICES AND METHOD FOR MAKING AND USING SAME - Anhydride polymers that release active or activatable agent(s) have pre-selected properties such as molecular weight, flexibility, hardness, adhesiveness, and other valuable properties. The polymers are suitable for use in compositions, formulations, coatings, devices, and the like that benefit from the controlled release of an agent(s) over a period of time. The polymers are prepared by a process involving various alternative and sequential steps that allow the design a priori of products with specific characteristics. The polymers are suitable as delivery systems, either by themselves, as compositions, formulations or devices. | 06-17-2010 |
| 20110218316 | POLYESTER FILMS WITH IMPROVED OIL REPELLENCY - Provided are films made from copolyesters having improved oil repellency as compared to conventional copolyesters. The copolyesters are derived from certain perfluorinated monomers. | 09-08-2011 |
| 20110218317 | POLYESTERS COMPRISING FLUOROVINYLETHER FUNCTIONALIZED AROMATIC MOIETIES - Disclosed are polyesters, particularly poly(trimethylene terephthalate), comprising fluorovinylether functionalized aromatic repeat units, and methods to make the polyester polymers. The polymers are useful for imparting soil resistance to polyesters, particularly in the form of fibers, fabrics, and carpets. | 09-08-2011 |
| 528306000 |
Ethylenically unsaturated carboxylic acid or derivative of an ethylenically unsaturated carboxylic acid | 2 |
| 20100041858 | PROCESS FOR PRODUCING POLYESTER-POLYCARBONATE TYPE THERMOPLASTIC POLYESTER ELASTOMER AND POLYESTER-POLYCARBONATE TYPE THERMOPLASTIC POLYESTER ELASTOMER - The present invention is a process for producing a polyester-polycarbonate type thermoplastic polyester elastomer in which a hard segment consisting of a polyester constructed of aromatic dicarboxylic acid, and an aliphatic or alicyclic diol, and a soft segment consisting mainly of aliphatic polycarbonate are connected, comprising at least a step of increasing the molecular weight of an aliphatic polycarbonate diol by a reaction of an aliphatic polycarbonate diol and a chain extender, and a step of reacting aliphatic polycarbonate and a polyester constructed of aromatic dicarboxylic acid and an aliphatic or alicyclic diol in the molten state. | 02-18-2010 |
| 20130225784 | POLYESTER RESIN, METHOD OF PRODUCING THE SAME, COMPOSITION FOR MOLDED ARTICLE AND MOLDED ARTICLE - A polyester resin that can be used for producing a molded article having excellent impact resistance, and a method of producing the polyester resin. The polyester resin has structural units represented by general formulae (1) and (2), and contains the structural unit represented by the general formula (2) at a content of 50.1 mol % or more to 99.9 mol % or less with respect to the total of the structural units represented by the general formulae (1) and (2). The method of producing a polyester resin includes copolymerizing a furandicarboxylic acid or an ester thereof with ethylene glycol and diethylene glycol. In the formula, R | 08-29-2013 |
| 528297000 |
1,2-epoxy containing reactant | 2 |
| 20100029892 | FLUORENE-BASED RESIN POLYMER AND METHOD FOR PREPARING THEREOF - The present invention relates to a fluorene-based resin polymer having a repeating unit of Formula 1 and a method for preparing the same. The fluorene-based resin polymer has a high molecular weight and low acid value, and has an excellent developing property, adhesive property, and stability. | 02-04-2010 |
| 20120116048 | Coating Compositions for Containers and Methods of Coating - This invention provides a coating composition for use on a food-contact surface of a container (e.g., a food or beverage can) that includes a polymer having one or more segments of Formula I: | 05-10-2012 |
| 528295500 |
Reactant which is a fatty acid glycerol ester, a fatty acid or salt derived from a naturally occurring glyceride, tall oil, or a fatty acid derived from tall oil | 2 |
| 20100016543 | CRYSTALLINE COPOLYESTERS HAVING HIGH SOLUBILITY IN NON-HALOGENATED SOLVENTS, AND THEIR USE - A description is given of the preparation of high molecular mass, crystalline copolyesters with high solubility in non-halogenated and non-aromatic solvents, and of their use in adhesives. | 01-21-2010 |
| 20100105861 | METHOD FOR PRODUCTION OF PEARLESCENT COMPOSITION - A method for producing a pearly luster composition containing pearly luster particles (A) containing a fatty acid glycol ester (a1) and a fatty acid glycol ester (a2) having a melting point higher than the melting point of the fatty acid glycol ester (a1), and a surfactant (B), wherein the method includes the steps of (i) solubilizing the fatty acid glycol ester (a2) in the presence of the surfactant (B); (ii) mixing the solubilized solution obtained in the step (i) with a molten fatty acid glycol ester (a1), to emulsify the mixture; and (iii) cooling the emulsified mixture obtained in the step (ii), to precipitate the pearly luster particles (A); a pearly luster composition obtained by the method; and a shampoo containing the pearly luster composition. The pearly luster composition obtained by the present invention is suitably used for shampoos, conditioners, body shampoos, liquid detergents, and the like. | 04-29-2010 |
| Entries |
| Document | Title | Date |
|---|
| 20080207868 | Apparatus for Heat Treatment of Polyester Particle and Method of Multistage Solid-Phase Polycondensation of Polyester Particle - An apparatus for a heat treatment of polyester particles, comprising: (1) a first fluidized bed; (2) a first moving bed; (3) a second fluidized bed; and (4) a second moving bed in the stated order along a flow of the particles, wherein the second moving bed has a capacity twice or more as large as a capacity of the first moving bed. | 08-28-2008 |
| 20080221296 | Polyester production system employing an unagitated esterification reactor - A polyester production system employing a vertically elongated esterification reactor. The esterification reactor of the present invention is an improvement over conventional CSTR esterification reactors because, for example, in one embodiment, the reactor requires little or no mechanical agitation. Further, in one embodiment, the positioning of the inlets and outlets of the reactor provides improved operational performance and flexibility over CSTRs of the prior art. | 09-11-2008 |
| 20080221297 | Polyester production system employing hot paste to esterification zone - A polyester production process employing an esterification system that uses a distillation column to recover alcohol produced from an esterification zone and then utilizes the recovered alcohol to form a paste, which is recirculated back to the esterification zone with little or no cooling. | 09-11-2008 |
| 20090036639 | Post-Processing of Polylactic Acid Article - Methods are provided for making a polylactic acid article. The methods may include the steps of providing an article comprising polylactic acid; supporting the article using a carrier support system; and curing the article with heat. The step of curing the article is effective to improve one or more properties of the article. Articles comprising polylactic acid also are provided having improved properties. Methods also are provided for preparing a beverage including the steps of providing a pod comprising polylactic acid, wherein the pod has been cured with heat while being supported by a carrier support system; placing a beverage material in the pod; placing a hot liquid into the pod; brewing the beverage material and hot liquid in the pod to create a beverage; and removing the beverage from the pod. | 02-05-2009 |
| 20090082540 | HYDROLYSABLE LINKERS AND CROSS-LINKERS FOR ABSORBABLE POLYMERS - The present invention relates to the discovery of new class of linear and multiarmed hydrolysable linkers and cross linkers for use in the synthesis of biodegradable polymers such as, polyesters, polyurethanes, polyamides, polyureas and degradable epoxy amine resin. The linear and multiarmed hydrolysable linkers of the present invention include symmetrical and/or unsymmetrical ether carboxylic acids, amines, amide diols, amine polyols and isocyanates. | 03-26-2009 |
| 20090131626 | SIMPLIFIED ISOPHTHALIC ACID PROCESS FOR MODIFYING PET - Disclosed are modified PET polymer compositions and process for making modified PET polymer compositions by reacting purified terephthalic acid and non-hydrogenated isophthalic acid with ethylene glycol. Compositions with acceptable visual appearance, such as clarity and color, can be made at typical modification levels for many packaging application. Disclosed are also shaped articles and the process for making shaped articles of the modified PET polymer composition. | 05-21-2009 |
| 20090156779 | BACTERIUM CAPABLE OF PRODUCING ORGANIC ACID, AND METHOD FOR PRODUCTION OF ORGANIC ACID - Provided is a bacterium which is capable of producing an organic acid and is modified so as to have an enhanced 2-oxoglutarate dehydrogenase activity as compared with that of an unmodified strain. An organic acid such as succinic acid can be produced by culturing the bacterium. | 06-18-2009 |
| 20090192285 | Method and device for the production of polyesters and copolyesters - Disclosed is a method for producing polyesters by means of esterification or re-esterification, precondensation of the esterified/re-esterified product, and polycondensation of the precondensed product at a pressure of 0.2 to 500 mbar and a temperature of 230 to 330° C. According to said method, the vapors formed during precondensation and polycondensation are condensed and the obtained cooled diol is redirected into the condensation stage. In order to improve the degree of separation, the vapors are directed into a bottomless direct contact condenser, the base of which is immersed into the top funnel-shaped section of a barometrically dipped downpipe so as to form an annular space, cooled diol is sprayed into the vapors in the top section of the direct contact condenser, the remaining vapors are recovered via the annular space, and the formed polymer aggregates are removed. | 07-30-2009 |
| 20090292101 | METHOD AND INSTALLATION FOR INCREASING THE INTRINSIC VISCOSITY OF POLYESTER MATERIAL BY SOLID PHASE POLYCONDENSATION - An installation for increasing the intrinsic viscosity of a polyester material by solid phase polycondensation (SSP) comprises a heatable reaction container ( | 11-26-2009 |
| 20090306328 | COPOLYMER FOR SEMICONDUCTOR LITHOGRAPHY AND PROCESS FOR PRODUCING THE SAME - To provide a copolymer for semiconductor lithography employed for forming a resist film as well as thin films such as an anti-reflection film, a gap-filling film, a top coating film, etc. which are formed on or under a resist film, these films being employed in semiconductor lithography, wherein the copolymer has excellent solubility in a solution of a thin film-forming composition and prevents generation of microparticles (e.g., microgel) and pattern defects, and to provide a method for producing the copolymer reliably on an industrial scale. | 12-10-2009 |
| 20100010191 | Methods for Preparing Selectively-Releasable Adhesives - In one embodiment, a method for preparing a selectively releasable adhesive includes condensing a multifunctional alcohol and a multifunctional carboxylic acid to form a prepolymer and curing the prepolymer at an elevated temperature and a vacuum to produce a cured polymer. | 01-14-2010 |
| 20100137551 | Methods and materials for the production of D-lactic acid in yeast - The present invention relates to biocatalysts that are cells, optimally of the Crabtree-negative phenotype, comprising expression vectors encoding genes heterologous to the cell that enable increased production of organic products. More specifically, the invention relates to genetically modified | 06-03-2010 |
| 20100174044 | POLYESTER RESIN, METHOD OF PRODUCING THE SAME, COMPOSITION FOR MOLDED ARTICLE AND MOLDED ARTICLE - Provide are a novel polyester resin that can be used for producing a molded article excellent in impact resistance, and a method of producing the polyester resin. The polyester resin has structural units represented by the following general formulae (1) and (2), and contains the structural unit represented by the general formula (2) at a content of 50.1 mol % or more to 99.9 mol % or less with respect to the total of the structural units represented by the general formulae (1) and (2). The method of producing a polyester resin, includes copolymerizing a furandicarboxylic acid or an ester thereof with ethylene glycol and diethylene glycol. In the formula, R | 07-08-2010 |
| 20100204432 | BIODEGRADABLE ELASTOMERS PREPARED BY THE CONDENSATION OF AN ORGANIC DI-, TRI- OR TETRA-CARBOXYLIC ACID AND AN ORGANIC DIOL - The present disclosure relates to biodegradable and biocompatible elastomeric polymers prepared by the condensation of an organic di-, tri- or tetra-carboxylic acid and an organic diol followed by thermal crosslinking with a bis- or tri-lactone or reaction with a photosensitive compound and subsequent photocrosslinking. Said elastomers are amorphous, have a glass transition temperature below both room temperature and body temperature and will homogeneously degrade to water soluble by-products with no reported toxicity. | 08-12-2010 |
| 20100240857 | USE OF HYPERBRANCHES POLYESTERS AND/OR POLYESTER AMIDES FOR SEPARATING OIL-IN-WATER EMULSIONS - The use of nondendrimeric hyperbranched polyesters and/or polyesteramides which comprise alkyl- and/or alkenyl-substituted succinic acid units as demulsifiers for splitting oil-water emulsions, especially crude oil emulsions, and also nondendrimeric hyperbranched polyesters or polyesteramides which comprise alkyl- and/or alkenyl-substituted succinic acid units. | 09-23-2010 |
| 20100249362 | APPARATUS AND METHOD BOTH RELATING TO POLYMER SYNTHESIS - The present invention provides a method and apparatus for producing polylactic acid by depolymerizing lactic acid oligomers and subjecting the obtained lactide to ring-opening polymerization, through which lactide can be efficiently obtained. The present invention relates to a lactide production apparatus for continuously or intermittently producing lactide, comprising: a depolymerization device | 09-30-2010 |
| 20100280214 | HIGHLY PURE AMPHIPHILIC COPOLYMER COMPRISING HYDROPHOBIC BLOCK FROM ALPHA-HYDROXY ACID AND PROCESS FOR THE PREPARATION THEREOF - Disclosed are a highly pure amphiphilic block copolymer including a hydrophobic polymer block of a poly(α-hydroxy acid), and a method for preparing the same. The method for preparing a highly pure amphiphilic block copolymer including a hydrophobic polymer block of a poly(α-hydroxy acid) includes removing α-hydroxy acid, lactone monomers thereof, oligomers thereof and an organometal catalyst in polymerizing the amphiphilic block copolymer. | 11-04-2010 |
| 20100331512 | METHOD FOR PRODUCING CYCLIC DIESTERS OF L-, D- AND D,L-LACTIC ACID - Method for the production of L,L-, D,D-, D,L- and meso-dilactides, comprising the polycondensation and/or polytransesterification of an L-, D- or D,L-lactic acid or of esters thereof to polyesters of higher molecular weights of the L-, D- and D,L-lactic acid (polylactic acids) and cyclizing depolymerization of the polylactic acids to dilactides, wherein the polyesters of higher molecular weights of the L-, D- and D,L-lactic acids are produced in the presence of hydrolysis-stable metal compounds as catalyst. | 12-30-2010 |
| 20100331513 | THERMO-SHRINKABLE POLYESTER FILM - Disclosed is a thermo-shrinkable polyester film having superior thermal shrinkage properties. The thermo-shrinkable polyester film has a strength of 3.5˜6.5 kg/mm | 12-30-2010 |
| 20110028677 | BIAXIAL ORIENTED POLYESTER FILM AND A PROCESS FOR PREPARING SAME - The present invention relates to a biaxial oriented polyester film and process for preparing the same, the said film is having an average ellipticity of not more than 0.6, Poisson ratio of not more than 0.7 (at elongation greater than 25%) all along the width of web and residual enthalpy in the range of 12% to 20%, a continuous reduction in residual film area up to an elongation of 100%. | 02-03-2011 |
| 20110028678 | PRODUCTION METHOD OF ALIPHATIC POLYESTER - An object of the present invention is to provide a method for efficient continuous production of aliphatic polyester having good quality. The invention relates to a continuous production method of aliphatic polyester, wherein the polyester is obtained through a preparation step of slurry containing aliphatic dicarboxylic acid and aliphatic diol, an esterification reaction step and a polycondensation reaction step, wherein temperature range of the slurry during the preparation step thereof is from the coagulation point of the aliphatic diol to 80° C., and moisture content in the slurry is from 0.01 to 10% by weight. | 02-03-2011 |
| 20110112273 | Group 3 Post-Metallocene Complexes Based on Bis(Naphthoxy)Pyridine and Bis(Naphthoxy)ThioPhene Ligands for the Ring-Opening Polymerisation of Polar Cyclic Monomers - The present invention relates to the use of group 3 post-metallocene complexes based on sterically encumbered bis(naphthoxy)pyridine and bis(naphthoxy)thiophene ligands in the ring-opening polymerisation of polar monomers such as, for examples, lactones, lactides, cyclic carbonates. | 05-12-2011 |
| 20110178265 | POLYESTER POLYMERIZATION CATALYST AND METHOD FOR PRODUCING POLYESTER USING THE SAME - Provided are a polyester polymerization catalyst with which the generation of foreign materials caused by the catalyst or mold pollution at the time of molding are reduced and polyesters having remarkably superior thermal stability and color tone can be obtained. | 07-21-2011 |
| 20110201776 | Method for Thermally Treating Polyester Pellets to Obtain a Partial Crystallization - The invention relates to a method for thermally treating polyester pellets to obtain partial crystallization, whereby the polyester melt is supplied to an underwater granulating system and granulated; the thus obtained granulate are fed from the underwater granulating system into a water-solids separator. The dried granulate is then fed into a treatment device at a granulate temperature higher than 100 degrees C., without external energy or heat being supplied. The intrinsic heat of the granulate is used as the heat treatment leading to partial crystallization. The crystallization device is embodied as an at least lightly inclined reactor, into which granulate is fed at a temperature higher than 100 degrees C. The granulate passes through the reactor from the loading point to the discharge point under its own weight and exits the reactor with a temperature higher than 130 degrees C. | 08-18-2011 |
| 20110263811 | METHOD FOR PRODUCING LACTIC ACID AND METHOD FOR PRODUCING POLYLACTIC ACID - Lactic acid is obtained by a method including (A) a step of continuous fermentation wherein a fermentation culture medium of a microorganism having an ability of lactic acid fermentation is filtered through a porous membrane having an average pore size of not less than 0.01 μm and less than 1 μm with a transmembrane pressure difference within the range of 0.1 to 20 kPa, and the permeate is collected, while retaining the non-permeated liquid in or returning the non-permeated liquid to the culture, and adding a fermentation feedstock to the culture; (B) a step of filtering the permeate obtained in Step (A) through a nanofiltration membrane; and (C) a step of distilling the permeate obtained in Step (B) under a pressure of not less than 1 Pa and not more than atmospheric pressure, at 25° C. to 200° C. to recover lactic acid. | 10-27-2011 |
| 20120101248 | METHOD FOR PRODUCING POLYLACTIC ACID | 04-26-2012 |
| 20120108783 | PIEZOELECTRIC SHEET, METHOD FOR MANUFACTURING PIEZOELECTRIC SHEET, AND MANUFACTURING APPARATUS - A specific region of a polylactic acid sheet is heated by a microwave. To allow the polylactic acid sheet to exhibit piezoelectricity in the thickness direction of the polylactic acid sheet, a high voltage is applied to the heated polylactic acid sheet in the thickness direction of the polylactic acid sheet, and thereby the screw axes of at least a part of the polylactic acid molecules are relatively aligned with the thickness direction. Then the polylactic acid sheet is rapidly cooled, and thereby the polylactic acid molecules are immobilized. The same step is executed for other regions of the polylactic acid sheet, and thereby piezoelectricity is imparted to a wide area of the polylactic acid sheet in the thickness direction. The resultant piezoelectric sheet is capable of exhibiting a high piezoelectricity in the thickness direction. | 05-03-2012 |
| 20120165496 | INDUSTRIAL HIGH TENACITY POLYESTER FIBER WITH SUPERIOR CREEP PROPERTIES AND THE MANUFACTURE THEREOF - Disclosed are an industrial high tenacity polyester fiber with superior creep properties and a method of preparing the fiber. The industrial polyester fiber has a mono-filament fineness of 5 to 15 dpf, an intrinsic viscosity of 0.8 to 1.25 dl/g, and a creep change rate of 4.7% or less, wherein the creep change rate is measured at 160° C. for 24 hours while giving a load corresponding to a strain of 3% after heat-treating the fiber at 220° C. for 2 minutes while giving a load of 1 g/d, and the load corresponding to the strain of 3% is based on a value obtained from a load-strain curve of the fiber before heat-treatment. | 06-28-2012 |
| 20120202962 | DEVICE AND METHOD FOR PRODUCING POLYBUTYLENE SUCCINATE - A device and a method for producing high-quality polybutylene succinate are provided. The method for producing polybutylene succinate comprises the steps of: preparing a raw-material slurry by mixing succinic acid or a derivative thereof with 1,4-butanediol in a raw-material slurry preparation tank; storing the raw-material slurry in a raw-material slurry storage tank while maintaining flowability; carrying out an esterification reaction of the raw-material slurry in an esterification reactor; and synthesizing polybutylene succinate with a polycondensation reaction of the ester in a polycondensation reactor, in which the polycondensation reactor is divided, from the upstream side, into at least an initial polycondensation reactor, an intermediate polycondensation reactor, and a final polycondensation reactor, a catalyst is added in an amount from 1000 ppm to 3000 ppm in relation to succinic acid or a derivative thereof, the reaction time in the intermediate polycondensation reactor ranges from 0.25 hours to 0.75 hours, and the reaction temperature in the final polycondensation reactor ranges from 245° C. to 255° C. | 08-09-2012 |
| 20120238722 | PROCESS FOR THE CRYSTALLIZATION OF SUCCINIC ACID - The present invention relates to a process for recovering succinic acid in crystal form from a fermentation broth comprising succinic acid, comprising the steps of
| 09-20-2012 |
| 20130053534 | PROCESS FOR PREPARING NEOPENTYL GLYCOL - A process for distilling an aqueous NPG mixture comprising NPG, a tertiary amine, water and the adduct of tertiary amine and formic acid (amine formate), said distillation being performed in a distillation column, which comprises drawing off a gaseous stream in the upper region of the column and feeding it to two condensers connected in series, the first condenser being operated in such a way that a portion of the gaseous stream is condensed in the first condenser and the second condenser being operated in such a way that the uncondensed portion of the gaseous stream is essentially fully condensed in the second condenser, the condensed stream from the first condenser being recycled fully or partly as reflux into the column. | 02-28-2013 |
| 20130197183 | Process for Producing a Lactic Acid-Amine Complex - A process for the production of a complex of lactic acid and either ammonia or an amine, comprising reacting one or more saccharides with barium hydroxide to produce a first reaction mixture comprising barium lactate, and contacting at least part of the first reaction mixture with ammonia or an amine and with carbon dioxide, or with the carbonate and/or bicarbonate salt of ammonia or an amine, to produce a second reaction mixture comprising said complex and barium carbonate. | 08-01-2013 |
| 20130211037 | METHOD FOR PRODUCING POLYESTER - The present invention is aimed to provide a method for producing a polyester with reduced CD content and elution amount, in which even after the production method, a reduction in physical properties of the polyester is small, and furthermore, a polyester having good moldability can be produced, and the present invention is concerned with a method for producing a polyester including an esterification reaction step of allowing an aliphatic diol and an aliphatic dicarboxylic acid to react with each other; a step of pelletizing a polyester obtained through the esterification reaction step; and a contact treatment step of bringing the obtained polyester pellets into contact with a mixed solution containing ethanol and water, wherein the mixed solution contains water in an amount of 10% by mass or more and not more than 99% by mass relative to the whole of the mixed solution. | 08-15-2013 |
| 20140011975 | CLEANING DEVICE FOR SEPARATING DILACTIDE FROM MIXTURES, POLYMERISATION DEVICE, METHOD FOR SEPARATING DILACTIDE FROM MIXTURES AND USE THEREOF - The present invention relates to a device for separating a biodegradable, intermolecular cyclic diester of an alpha-hydroxycarboxylic acid from material mixtures which contain in addition the alpha-hydroxycarboxylic acid of the diester corresponding thereto. In particular, the diester is thereby dilactide and the acid lactic acid. Furthermore, the present invention relates to a method for separating dilactide from material mixtures, which is based on a modified, distillative method. In addition, the present invention describes a polymerisation device, in particular for preparing polylactide. Likewise, purposes of use of both the devices and of the method are indicated. | 01-09-2014 |
| 20140296471 | DIOL COMPOSITION AND POLYESTER - A diol composition includes a diol as a major component and has an electrical conductivity of 0.6 to 30 mS/m. | 10-02-2014 |
| 20140316097 | METHOD AND APPARATUS FOR RECOVERING LACTIDE FROM POLYLACTIDE OR GLYCOLIDE FROM POLYGLYCOLIDE - The present invention relates to a process for recovering lactide from polylactide (PLA) or glycolide from polyglycolide (PGA), in which, in a first step, PLA or PGA is contacted with a hydrolysing medium and hydrolytically degraded to oligomers. In a further step, a cyclising depolymerisation of the oligomers obtained in the first step is effected to give lactide or glycolide. In addition, the present invention relates to an apparatus based on the combination of a hydrolysis apparatus with a depolymerisation reactor, with which the above-described process can be performed. The core of the process according to the invention is a partial hydrolysis of the polymeric materials originally used in combination with a cyclising depolymerisation. | 10-23-2014 |
| 20140323682 | QUALITY TEST FOR POLYMERIZABLE LACTIC ACID AND METHOD FOR PRODUCING SAME - Disclosed is a test and test apparatus used to determine whether lactic acid is suitable for polymerization. The test apparatus comprises a) means for the polycondensation of the lactic acid to form a pre-polymers, b) means for depolymerization of the prepolymer to form dilactide, and c) means for carrying out analytical methods to determine at least one of the dilactide yield and/or the racemization, wherein lactic acid which is suitable for polymerization exhibits a dilactide yield of >90% and a racemization of <5%, | 10-30-2014 |
| 20150141611 | POLYMER PRODUCTION APPARATUS AND POLYMER PRODUCTION METHOD - A polymer production apparatus, including: supplying unit containing first supplying unit to supply raw materials containing monomer, and second supplying unit to supply compressive fluid; contacting unit to bring the monomer and the compressive fluid into contact together; and outlet configured to discharge reaction product of the monomer, wherein reaction unit is provided between the contacting unit and the outlet, where the reaction unit is to pass the monomer from the contacting unit side to the outlet side, while allowing the monomer to carry out a polymerization reaction in the presence of the compressive fluid, and wherein the reaction unit contains circulation unit containing first pipe and second pipe, where a fluid is passed through the first pipe from the contacting unit side to the outlet side, and the second pipe is to return the fluid from return port provided upstream extrusion unit to inlet provided upstream the return port. | 05-21-2015 |
| 20150322201 | POLYMER PRODUCT AND PRODUCTION METHOD THEREOF, AND POLYMER PRODUCT PRODUCING APPARATUS - Provided is a polymer product that has a melting point difference (Tm1−Tm0) of 3° C. or more between a polymer melting point Tm0 before it is heated and a polymer melting point Tm1 after it is heated under a nitrogen atmosphere for 60 minutes at a temperature that is higher than the highest polymer melting point by from 10° C. to 50° C. | 11-12-2015 |
| 20160075091 | ADDITIVE MANUFACTURING OBJECT REMOVAL - An object can be produced by depositing a material, layer-by-layer by an additive manufacturing process, onto a surface of a substrate. Removal of the object from the substrate may be accomplished without mechanically contacting the object with a device or chemically contacting the object. In an example, removal of the object from the substrate can be accomplished by flexing or bending the substrate. The substrate can be configured to elastically deform in response to a load applied to the sheet causing a deflection at a center of the sheet in an amount of at least about 12 mm and/or the sheet to have a radius of curvature that is less than or equal to about 305 mm. | 03-17-2016 |
| 20160176794 | Process for the Manufacture of Propanediol | 06-23-2016 |
