| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 528302000 | Two or more carboxylic acid or derivatives or mixtures thereof | 42 |
| 20080227946 | Thermosetting Composition and Curing Method Thereof - The invention relates to a thermosetting composition comprising (A) a compound having at least one oxetanyl group in the molecule, (B) a compound having at least two carboxyl groups in the molecule, and (C) an imidazolium salt, curing method thereof and products cured thereby. Cured products prepared from the composition of the invention is excellent in electrical isolation, flexibility, adhesiveness and mechanical strength. | 09-18-2008 |
| 20090023885 | TREATMENT METHOD FOR IMPARTING HIGH IMPACT RESISTANCE IN CERTAIN CBDO COPOLYMERS - According to the invention, an amorphous CBDO copolymer (as described in U.S. Pat. No. 5,705,575, issued Jan. 6, 1998, which U.S. patent is incorporated herein by reference in its entirety) is treated to impart high impact resistance, also called impact strength. | 01-22-2009 |
| 20090111966 | COPOLYMER AND METHOD FOR MANUFACTURING THE SAME AND PACKAGING MATERIAL UTILIZING THE SAME - The disclosed is a copolymer having a formula as: | 04-30-2009 |
| 20090281271 | HIGHLY FUNCTIONAL, HIGHLY BRANCHED OR HYPERBRANCHED POLYESTERS, THE PRODUCTION THEREOF AND THE USE OF THE SAME - High-functionality highly branched or hyperbranched polyesters based on di-, tri- or polycarboxylic acids and di-, tri- or polyols, processes for preparing them, and their use. | 11-12-2009 |
| 20100048859 | PDC-LACTIC ACID COPOLYESTER AND MOLDED PRODUCT THEREOF - A polyester containing a biomass-derived material in a repeating unit structure and having all of sufficient mechanical strength, easy mold processability into a molded product such as fiber or film, and biodegradability, is provided. | 02-25-2010 |
| 20100137552 | POLY(ETHER-ESTER) POLYOLS AND PROCESSES FOR THEIR PRODUCTION - The invention is directed to novel poly(ethcr-ester) polyols, processes for their production from monocarboxylic or polycarboxylic acid esters with one or more bound polyether chain(s). This invention also relates to the production of polyurethane materials in which the isocyanate-reactive component comprises these poly(ether-ester)polyols. | 06-03-2010 |
| 20110077380 | CARBOHYDRATE LACTONE POLYMERS - The present invention relates to a novel carbohydrate lactone, functionalized aliphatic polyesters and copolymers formed therefrom, and processes for the preparation thereof from renewable resources. | 03-31-2011 |
| 20110218318 | Composition of Matter - Disclosed are compositions of matter comprising an adipic acid product of formula (1) | 09-08-2011 |
| 20120065357 | RESIN FOR USE IN TONER, AND TONER AND DEVELOPER USING THE RESIN - A resin for use in toner including a polyhydroxycarboxylic acid skeleton in an amount of 50 to 80% by mass. The resin is soluble in organic solvents and has a glass transition temperature of 60° C. or more. | 03-15-2012 |
| 20120108784 | HIGHLY-BRANCHED OR HYPER-BRANCHED POLYESTER AND THE PRODUCTION AND APPLICATION THEREOF - A nongelling and noncrosslinked, highly branched or hyperbranched polyester, obtained by reacting at least one selected from the group consisting of a monocarboxylic acid, a dicarboxylic acid, a tricarboxylic acid, a polycarboxylic acid, and a derivative thereof with at least one selected from the group consisting of a monoalcohol, a diol, a triol, a tetraol, and a polyol, wherein an average functionality of the carboxyl groups (f.A) and the hydroxyl groups (f.B) in a notionally hydrolyzed polyester satisfies a relation: f.A+f.B>4, a mole fraction of the carboxyl groups (x.A) in the notionally hydrolyzed polyester satisfies a relation: f.A/[(f.A*f.B)+f.A]≦x≦(f.A*f.B)/[(f.A*f.B)+f.B], and a degree of conversion (U) of the deficit functionality satisfies a relation: U.min≦U≦U.max. | 05-03-2012 |
| 20120184708 | POLYESTER FOR TONER - A polyester for a toner obtained by polycondensing an aliphatic hydroxycarboxylic acid compound having a total number of hydroxy group or groups and carboxyl group or groups of 4 or more; an alcohol component containing an aliphatic diol having a hydroxyl group bound to a secondary carbon atom in an amount of 50% by mol or more; and a carboxylic acid component, provided that the aliphatic hydroxycarboxylic compound is not included, wherein the aliphatic hydroxycarboxylic acid compound and the aliphatic diol having a hydroxyl group bound to a secondary carbon atom are in a molar ratio, i.e. the aliphatic hydroxycarboxylic acid compound/the aliphatic diol having a hydroxyl group bound to a secondary carbon atom, of from 0.05 to 0.8; a resin binder for a toner, containing the polyester; and a toner for electrophotography, containing the resin binder. The polyester for a toner of the present invention is suitably used for a resin binder of a toner usable in development or the like of latent images formed in, for example, electrophotography, electrostatic recording method, electrostatic printing method or the like. | 07-19-2012 |
| 20130131303 | MATERIAL FOR FIBER MANUFACTURING AND FIBER - Disclosed is a material for fiber manufacturing obtained by melt kneading while degassing a liquid crystal polyester satisfying the following requirements (a) and (b): | 05-23-2013 |
| 20130131304 | MATERIAL FOR FIBER MANUFACTURING AND FIBER - Disclosed is a material for fiber manufacturing comprising a liquid crystal polyester satisfying the following requirements (a) and (b): | 05-23-2013 |
| 20130303722 | NOVEL SUSTAINED RELEASE POLYMER - A polymer and a method for its preparation are provided. The polymer comprises poly(lactide), poly(lactide/glycolide) or poly(lactic acid/glycolic acid) segments bonded by ester linkages to both ends of an alkanediol core unit. The polymer is for use in a controlled release formulation for a medicament, preferably leuprolide acetate. The controlled release formulation is administered to a patient as a subcutaneous depot of a flowable composition comprising the polymer, a biocompatible solvent, and the medicament. Controlled release formulations comprising the polymer release leuprolide for treatment of prostate cancer patients over periods of 3-6 months. | 11-14-2013 |
| 20140011976 | POLYESTER RESIN RESULTING FROM THE COPOLYMERISATION OF LACTIC ACID AND ISOSORBIDE, AND A PRODUCTION METHOD THEREFOR - A polyester resin with a superior heat-resistance and color as well as high content of a compound derived from biomass due to copolymerization of lactic acid or a compound derived therefrom and isosorbide, and a method for preparing the same are disclosed. The polyester resin is copolymerized with diacid components including terephthalic acid; diol components including 1 to 60 mol % of isosorbide and 1 to 90 mol % of ethylene glycol with respect to total diol components; and 1 to 50 weight % of lactic acid or a compound derived therefrom with respect to total reactants for resin polymerization, wherein, the polyester resin has the repeated structure of diacid moiety derived from the diacid components, diol moiety derived from the diol components and hydroxy monoacid moiety derived from the lactic acid or the compound derived therefrom. | 01-09-2014 |
| 20140088287 | PRODUCTION METHOD FOR LIQUID CRYSTAL POLYESTER - A method for producing a liquid crystal polyester according to the present invention is a method for producing a liquid crystal polyester, comprising subjecting a composition in which a dicarboxylic acid compound, a hydroxycarboxylic acid compound, and a dihydroxy compound are contained to melt polycondensation, and subjecting an obtained reaction product to solid phase polycondensation, wherein the composition contains, based on a total of the dicarboxylic acid compound, the hydroxycarboxylic acid compound, and the dihydroxy compound, 2 to 30 mole % of a dicarboxylic acid compound represented by the following formula (1), and 40 to 80 mole % of p-hydroxybenzoic acid, a polycondensation temperature of the above melt polycondensation is 315° C. or less, and a polycondensation temperature of the above solid phase polycondensation is 315° C. or less. | 03-27-2014 |
| 20140221598 | BIODEGRADABLE POLYESTER - A biodegradable polyester is provided. The biodegradable polyester is composed of a poly(terephthalate-di-(ε-caprolactone) unit, a poly(terephthalate-butylene-terephthalate) unit, a poly(terephthalate-butylene-ε-caprolactone) unit, a poly(ε-caprolactone-butylene-ε-caprolactone) unit, and a poly(tri(ε-caprolactone) unit. | 08-07-2014 |
| 20150018513 | METHOD FOR PRODUCING POLYMER AND DEVICE FOR PRODUCING POLYMER - A method for producing a polymer, including: (i) continuously supplying and bringing at least a first monomer, which is ring-opening polymerizable, and a compressive fluid into contact with each other, to thereby allow the first monomer to carry out ring-opening polymerization to continuously generate an intermediate; and (ii) bringing the intermediate and a second monomer, which is identical to or different from the first monomer in kind, into contact with each other, to thereby allow the intermediate and the second monomer to carry out polymerization. | 01-15-2015 |
| 20150087799 | METHOD TO PRODUCE SEMI-CRYSTALLINE POLYLACTIDES - This invention provides a method for synthesizing semi-crystalline polylactides (PLA) even from a lactide mixture including meso-LA and rac-LA. According to the invention, when a mixture of racemic lactide and meso-lactide ispolymerized using a catalyst capable of iso-selectively polymerizing L-lactide and D-lactide, an amorphous poly (meso-lactide) block is formed from meso-lactide and a semi-crystalline poly (racemic lactide) block is formed from racemic lactide by separately polymerizing racemic lactide and meso-lactide by taking advantage of a difference in physicochemical properties between racemic lactide and meso-lactide, whereby polylactide which is semi-crystalline as a whole is produced. | 03-26-2015 |
| 20150299385 | DEVICE AND METHOD FOR PRODUCING POLYESTER - Provided are a device and a method for efficiently producing a polyester by using 1,4-butanediol as a starting material. The device for producing a polyester includes: a preparation tank ( | 10-22-2015 |
| 20160017194 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE TAPE - Provided is a double-sided pressure-sensitive adhesive tape that is for fixing an electronic device component, has excellent adhesion, retention, and repulsion resistance, and can be produced with a plant-derived material having a high biomass degree. This double-sided pressure-sensitive adhesive tape for fixing an electronic device component is characterized by comprising a pressure-sensitive adhesive layer having a biomass degree of 50% by weight or more. | 01-21-2016 |
| 20160083508 | POLYESTER RESIN FOR TONER, ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER, AND ELECTROSTATIC CHARGE IMAGE DEVELOPER - Provided is a polyester resin for a toner that contains a repeating unit derived from a dicarboxylic acid having a furan ring, and a repeating unit derived from dialcohol represented by the following formula (1): | 03-24-2016 |
| 20160083509 | Polyamide Ester Resin, Method for Preparing the Same, and Molded Article Including the Same - A polyamide ester resin includes: a repeat unit derived from a dicarboxylic acid; a repeat unit derived from a diamine; and a repeat unit represented by the following Formula 1, wherein the polyamide ester resin has a melting temperature (Tm) of about 280° C. or more. The polyamide ester resin can exhibit excellent properties in terms of moisture absorption resistance, heat resistance, discoloration resistance, fluidity and the like by using a cyclic ester. | 03-24-2016 |
| 20220135737 | A Method for the Combined Production of at Least Two Target Products - The present invention relates to a method for the combined production of at least two target products selected from the group consisting of (T | 05-05-2022 |
| 528303000 | Ethylenically unsaturated carboxylic acid or ethylenically unsaturated derivative | 6 |
| 20090203871 | METHOD FOR PRODUCING THERMOPLASTIC POLYESTER ELASTOMER, THERMOPLASTIC POLYESTER ELASTOMER COMPOSITION, AND THERMOPLASTIC POLYESTER ELASTOMER - The present invention provides a thermoplastic polyester elastomer excellent in heat resistance, heat-aging resistance, water resistance, light resistance, low-temperature property and the like, and further excellent in block order-retaining ability, the thermoplastic polyester elastomer comprising a hard segment which comprises polyester constituted with aromatic dicarboxylic acid and aliphatic or alicyclic diol and a soft segment which comprises mainly aliphatic polycarbonate, wherein the hard segment and the soft segment being connected, and wherein when melting points of the thermoplastic polyester elastomer are obtained by measuring on a differential scanning calorimeter in three cycles in which a temperature is raised from room temperature to 300° C. at a heating rate of 20° C./min., maintained at 300° C. for 3 minutes and lowered to room temperature at a cooling rate of 100° C./min., a melting point difference (Tm | 08-13-2009 |
| 20090240023 | ANION POLYMERS - A process for preparing anionic polymers, including the steps of: (a) polymerizing one or more olefinically unsaturated carboxylic acids or esters thereof with one or more C | 09-24-2009 |
| 20130066038 | ALIPHATIC POLYESTER RESIN AND ITS PRODUCTION METHOD - An aliphatic polyester resin having excellent moldability and its production method are provided. When the amount of specific structural units contained in an aliphatic polyester resin is adjusted to an optimum amount, an aliphatic polyester resin having sufficient melt tension at the time of molding and excellent moldability than in the past and its production method is provided. | 03-14-2013 |
| 20160152766 | Polymer Scaffold Degradation Control Via Chemical Control | 06-02-2016 |
| 528304000 | Aryl-containing carboxylic acid or derivative of an aryl-containing carboxylic acid | 2 |
| 20140288262 | POLYESTER RESIN FOR TONER, METHOD FOR PRODUCING SAME AND TONER - Disclosed is a toner which is excellent in low-temperature fixability, high-temperature offset resistance, storage stability and durability, while having a wide range of fixing temperature. Also disclosed is a polyester resin used for such a toner. The polyester resin is one of the following polyester resin (A)-(E) for toners. (A) A polyester resin for toners having an Mp as determined by GPC of not less than 12,000 and having an unsaturated double bond (B) A polyester resin for toners obtained by crosslinking the polyester resin (A) (C) A polyester resin for toners containing the polyester resin (A) and another polyester resin having an Mp as determined by GPC of less than 12,000 (D) A polyester resin for toners obtained by crosslinking the polyester resin (C) (E) A polyester resin for toners containing a THF soluble fraction and a THF insoluble fraction wherein the Mw/Mn of the THF soluble fraction is not less than 6 and the total of the acid value and the hydroxyl value of the THF insoluble fraction is not more than 40 mgKOH/g. | 09-25-2014 |
| 20160090443 | BIODEGRADABLE POLYESTER RESIN AND ARTICLE CONTAINING THE SAME - Provided are a biodegradable polyester resin and an article including the resin. The provided biodegradable polyester resin includes an aliphatic dicarboxylic acid residue including a succinic acid residue and an adipic acid residue; and an aliphatic diol residue including at least one selected from the group consisting of an ethylene glycol residue and a butanediol residue in order to improve biodegradability and flexibility. | 03-31-2016 |
| 528305000 | Each of the carboxylic acids or derivatives contains an aryl group | 12 |
| 20100113735 | Integrated Co-Production of Dicarboxylic Acids - The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant. Optionally, PET off-gas containing the water of PET formation is treated in a shared thermal oxidative destruction unit, effectively eliminating normal flow of liquid wastewater effluent from a combined pX-to-TPA-to-PET plant. | 05-06-2010 |
| 20100152411 | POLY(TRIMETHYLENE TEREPHTHALATE) WITH REDUCED WHITENING - The present invention relates to a process for making a non-whitening poly(trimethylene terephthalate)-based polymer, wherein the polymer is melt polymerized 1,3-propanediol and a terephthalate component in the presence of a co-monomer, wherein the poly(trimethylene terephthalate)-based polymer comprises a PTT cyclic dimer level below 2 wt. %. | 06-17-2010 |
| 20100168370 | TRANSPARENT ARTICLES PREPARED FROM THERMOPLASTIC COMPOSITIONS HAVING HIGH FLOW AND DUCTILITY, AND METHOD OF PREPARING ARTICLES - Disclosed herein is a camera lens comprising a thermoplastic composition comprising a poly(aliphatic ester)-polycarbonate copolymer comprising soft block ester units derived from an alpha, omega C | 07-01-2010 |
| 20120095183 | METHODS OF PREPARING WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER RESIN AND WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER RESIN COMPOUND WITH CONSTANT MELT VISCOSITY - A method of preparing a wholly aromatic liquid crystalline polyester resin and a method of preparing a wholly aromatic liquid crystalline polyester resin compound. The method of preparing the wholly aromatic liquid crystalline polyester resin includes condensation poly-merizing raw 1 monomers including aromatic hydroxy carboxylic acid and a mixture of aromatic diol and aromatic dicarboxylic acid in a predetermined molar ratio. In addition, the method of preparing the wholly aromatic liquid crystalline polyester resin compound includes the method of preparing the wholly aromatic liquid crystalline polyester resin | 04-19-2012 |
| 20120202965 | Integrated Co-Production of Dicarboxylic Acids - The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. | 08-09-2012 |
| 20130158228 | ETHYLENE TEREPHTHALATE TYPE POLYESTER RESIN FOR FORMING CONTAINERS AND PROCESS FOR PRODUCING THE SAME - Ethylene terephthalate polyester resin for forming containers, having intrinsic viscosity of 0.65 to 0.85 dL/g, a content of a monohydroxyethyl terephthalate and a bishydroxyethyl terephthalate of less than 0.005% by weight, (a) a heat of fusion of not more than 50 J/g an end temperature of melting peak of not higher than 270° C. and a crystallinity of less than 0.48, or (b) an acetaldehyde concentration of 2 to 10 ppm, and satisfying at least either one of (i) a peak time of crystallization is not longer than 360 seconds and the crystallization energy is not less than 30 J/g in the isothermal crystallization at 210° C., or (ii) components having molecular weights of not larger than 10000 are contained in not less than 8%. The polyester resin effectively prevents problems metal mold fouling in forming containers or a decrease in productivity. | 06-20-2013 |
| 20130296524 | APPARATUS FOR PRODUCING AROMATIC POLYESTER AND PROCESS FOR PRODUCING AROMATIC POLYESTER - The present invention provides an apparatus for producing an aromatic polyester, comprising a reactor, a rectifying column, a distillation pipe for feeding distillate gas from the reactor to the rectifying column, and a liquid returning pipe for returning reflux liquid from the rectifying column to a reactor, wherein the ratio of (b) the inside diameter of pipe of the liquid returning pipe to (a) the maximum inside diameter of drum of the reactor, (b)/(a), is 0.012 to 0.12. The production apparatus has an efficient rectifying effect and is suitable for producing an aromatic polyester having an excellent heat resistance and color tone efficiently with good polymerizability and at low cost. | 11-07-2013 |
| 20140005352 | GAS SCRUBBER AND RELATED PROCESSES | 01-02-2014 |
| 20150080545 | Production and Use of 3,4' and 4,4'-Dimethylbiphenyl Isomers - In a process for producing 3,4′ and/or 4,4′ dimethyl-substituted biphenyl compounds, a feed comprising toluene is contacted with hydrogen in the presence of a hydroalkylation catalyst under conditions effective to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluenes. At least part of the hydroalkylation reaction product is dehydrogenated in the presence of a dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising a mixture of dimethyl-substituted biphenyl isomers. The dehydrogenation reaction product is then separated into at least a first stream containing at least 50% of 3,4′ and 4,4′ dimethylbiphenyl isomers by weight of the first stream and at least one second stream comprising one or more 2,x′ (where x′ is 2′, 3′, or 4′) and 3,3′ dimethylbiphenyl isomers. | 03-19-2015 |
| 20150080546 | Production and Use of 3,4' and 4,4'-Dimethylbiphenyl Isomers - In a process for producing 3,4′ and/or 4,4′ dimethyl-substituted biphenyl compounds, a feed comprising toluene is contacted with hydrogen in the presence of a hydroalkylation catalyst under conditions effective to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluenes. At least part of the hydroalkylation reaction product is dehydrogenated in the presence of a dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising a mixture of dimethyl-substituted biphenyl isomers. The dehydrogenation reaction product is then separated into at least a first stream containing at least 50% of 3,4′ and 4,4′ dimethylbiphenyl isomers by weight of the first stream and at least one second stream comprising one or more 2,x′ (where x′ is 2′, 3′, or 4′) and 3,3′ dimethylbiphenyl isomers. | 03-19-2015 |
| 20150105532 | METHODS AND MATERIALS FOR DEPOLYMERIZING POLYESTERS - Provided is a method of depolymerizing polyesters from post-consumer products, such as beverage bottles, to produce a high purity reaction product. For the depolymerization reaction, the polyesters are reacted with an alcohol having 2 to 5 carbons and an amine organocatalyst at a temperature of about 150° C. to about 250° C. In one application, the use an organocatalyst with a boiling point significantly lower than the boiling point of the reactant alcohol allows for the ready recycling of the amine organocatalyst. In another application, performing the depolymerization reaction under pressure at a temperature above that of the alcohol allows for accelerated depolymerization rates and the recovery of the organocatalyst with no further heat input. In a further application, glycolytic depolymerization of poly(ethylene terephthalate) (PET) from post-consumer beverage bottles produces a pure reaction product of bis(2-hydroxyethyl)terephthalate (BHET), which may in turn be used to produce high purity beverage bottle grade PET, in a closed loop process with minimal output and waste. | 04-16-2015 |
| 20150328618 | REACTOR FOR PRODUCING OR TREATING A POLYMER MELT - A reactor for producing or treating a polymer melt, comprising a bottom valve via which the polymer melt can be discharged from the reactor, wherein the bottom valve comprises a valve seat and a closing body which can form a common sealing surface. | 11-19-2015 |
