Class / Patent application number | Description | Number of patent applications / Date published |
525444000 |
Mixed with polycarboxylic acid or derivative and polyhydroxy reactant or polymer thereof
| 29 |
525440010 |
Mixed with -N=C=X reactant or polymer derived therefrom (X is chalcogen); or wherein solid polymer is derived from a -N=C=X reactant and also a polycarboxylic acid or derivative and a polyhydroxy reactant
| 25 |
525439000 |
Mixed with O-C(=O)-O-, hal-C(=O)-O-, or hal-C(=O)-hal containing reactant or polymer derived therefrom; or wherein solid polymer is derived from a hal-C(=O)-hal, O-C(=O)-O-, or hal-C(=O)-O-, a polycarboxylic acid or derivative and a polyhydroxy reactant
| 11 |
525445000 |
Mixed with ethylenically unsaturated reactant or polymer therefrom
| 9 |
525438000 |
Mixed with reactant containing more than one 1,2-epoxy group per mole or polymer derived therefrom
| 9 |
525447000 |
Solid polymer derived from polycarboxylic acid or derivative and a polyhydroxy compound derived from reactant containing ethylenic unsaturation
| 6 |
525448000 |
Solid polymer derived from polycarboxylic acid or derivative and polyhydroxy compound is derived from two or more polycarboxylic acids or derivatives | 5 |
20130184414 | CATALYST SYSTEM AND PROCESS FOR PREPARING OF POLYESTER RESINS, FIBRE, FILAMENTS AND YARN USING SAID CATALYST SYSTEM - The present invention relates to a process for preparation of polyester resin in the presence of a novel catalyst system comprising an antimony compound and inorganic tin compound. The present invention also relates to a catalyst system for the preparation of polyester comprising an antimony compound and inorganic tin compound which reduces the polymerization time at all stages of polyester synthesis and reduces the generation of degradation product. This invention further relates to polyester resin with improved L color having significant importance in end-use applications. | 07-18-2013 |
20150315334 | METHOD FOR CONTINUOUS PRODUCTION OF BIODEGRADABLE ALIPHATIC/AROMATIC POLYESTER COPOLYMER - A continuous preparation method of a biodegradable aliphatic/aromatic polyester copolymer includes: performing a first esterification reaction of an aliphatic dihydroxy compound with an aliphatic dicarboxylic acid at a temperature of 185° C. or less; continuously performing a second esterification reaction of a reaction product from the first esterification reaction; continuously performing a first polycondensation reaction of a reaction product from the second esterification reaction to obtain a prepolymer; continuously performing a second polycondensation reaction of the prepolymer to obtain a second polycondensation reaction product having a melting index from about 15 g/10 min to about 25 g/10 min; and continuously performing a third polycondensation reaction of the second polycondensation reaction product to prepare the biodegradable aliphatic/aromatic polyester copolymer, wherein the performing of the first esterification reaction or the continuously performing of the second esterification reaction includes adding an aromatic carboxylic acid. | 11-05-2015 |
20150315335 | METHOD FOR CONTINUOUS PRODUCTION OF BIODEGRADABLE ALIPHATIC/AROMATIC POLYESTER COPOLYMER - A continuous preparation method of a biodegradable aliphatic/aromatic polyester copolymer includes: performing a first esterification reaction of an aliphatic dihydroxy compound with an aliphatic dicarboxylic acid at a temperature of 185° C. or less; continuously performing a second esterification reaction of a reaction product from the first esterification reaction; continuously performing a first polycondensation reaction of a reaction product from the second esterification reaction to obtain a prepolymer having a weight average molecular weight of about 6,900 to about 14,000; continuously performing a second polycondensation reaction of the prepolymer to obtain a second polycondensation reaction product; and continuously performing a third polycondensation reaction of the second polycondensation reaction product to prepare the biodegradable aliphatic/aromatic polyester copolymer, wherein the performing of the first esterification reaction or the continuously performing of the second esterification reaction includes adding an aromatic carboxylic acid. The biodegradable aliphatic/aromatic polyester copolymer prepared by the continuous method may be improved in processibility, film formability, tensile/tearing strength, and blending ability with another polymer resin. Use of a less amount of the aliphatic dihydroxy compound as a starting material may reduce manufacturing costs. | 11-05-2015 |
20160053111 | PHA Compositions Comprising PBS and PBSA and Methods for their Production - Compositions of PHAs with PBS and/or PBSA are described and methods of making the same. | 02-25-2016 |
20160075819 | NOVEL POLYCARBOXYLIC ACID ANHYDRIDE AND USE THEREOF - The present invention relates to a polycarboxylic acid anhydride having a structural unit represented by the following Formula (1). The present invention provides a novel polycarboxylic acid anhydride. When the polycarboxylic acid anhydride is used, for example, as an epoxy resin-curing agent, the balance of the composition of the resin composition is stabilized, and a resin molded article having excellent heat resistance, transparency, thermal yellowing resistance, surface hardness, solvent resistance, flexibility, and adhesiveness is thus provided. | 03-17-2016 |
525446000 |
Mixed with silicon-containing reactant or polymer derived therefrom | 3 |
20120184688 | POLYMER, AND COMPOSITION AND FILM INCLUDING THE SAME - A polymer including a structural unit represented by the following Chemical Formula 1, and a composition and a film including the same are provided. | 07-19-2012 |
20120277381 | HYBRID-TYPE POLYESTER RESIN, RESIN COMPOSITION FOR FORMATION OF FILM, AND POLYESTER FILM AND TEXTILE - Provided is a hybrid-type polyester resin which, when used in processing a base material such as textile or PET film, can impart excellent flame retardance to the base material. The hybrid-type polyester resin can be inhibited from scattering high-temperature drips, even if the hybrid-type polyester resin burns. The hybrid-type polyester resin comprises both a polyester resin and a siloxane prepared from silica and an alkoxysilane. Therefore, the hybrid-type polyester resin retains the excellent properties inherent in polyester resin and exhibits extremely excellent flame retardance by virtue of hybridization with the siloxane. Even if the hybrid-type polyester resin burns, the hybrid-type polyester resin is less susceptible to deformation, and is therefore inhibited from scattering high-temperature drips. | 11-01-2012 |
20130267665 | PROCESS FOR PRODUCING FUNCTIONAL SILOXANES OF CONTROLLED STRUCTURE - Disclosed herein is a process for preparing a linear hydroxyaryloxy-functional polydiorganosiloxanes having controlled structures. The process includes the step of reacting a linear α,ω-bisacyloxypolydiorganosiloxane with at least one bisphenolic compound, or hydroxy-functional oligomer thereof, in such a molar ratio that the phenolic groups in the bisphenolic compound or the hydroxy-functional oligomer thereof to the acyloxy groups in the α,ω-bisacyloxypolydiorganosiloxane is less than 2.0. Also disclosed are hydroxyaryloxy-functional polydiorganosiloxanes produced from the process and the polysiloxane/polyorgano block copolymers made using the hydroxyaryloxy-functional siloxanes. | 10-10-2013 |
525441000 |
Mixed with aldehyde or aldehyde derivative reactant or polymer derived therefrom | 1 |
20140194580 | BLENDS OF POLYSULFONES AND POLYPHENYLENE SULFIDE RESINS - Compositions including a blend of a) a polysulfone (PSU); b) a polyphenylene sulfide (PPS); and, c) a polyetherimide and epoxy. The polyetherimide and epoxy can be present in an amount effective to act as a compatibilizer for the polysulfone (PSU) and polyphenylene sulfide (PPS). | 07-10-2014 |
Entries |
Document | Title | Date |
20080214743 | Aliphatic Polyester-Amide Compositions and a Process for Producing the Same - The invention is a method for increasing the molecular weight of and optionally providing branching in a polymer which has a first repeat unit, which comprises the residual of a condensation reaction of an aliphatic dicarboxylic acid and either a bisamide diol or a bis diamide diester, and a second repeat unit, which comprises the residual of a condensation reaction of a diol and an aliphatic dicarboxylic acid. The invention is also the branched polymer that can be made by such a method. | 09-04-2008 |
20080281052 | MULTIPURPOSE RESIN COMPOSITION AND PROCESS FOR MANUFACTURING THE SAME - A multipurpose process resin formulation which produces superior adhesion on a variety of different substrates including, but not limited to, carbon and aramid fibers. The resin formulation includes a mixture of a thermosetting polyester and or vinyl ester resin; a polymerizable and,or non-polymerizable phosphate ester phosphite ester and/or oligomer; and a curing and or catalyzing agent. The resin formulation can include an alkyl acrylate and/or methacrylate monomer and/or compound. | 11-13-2008 |
20090124763 | POLYMER COMPOUND AND METHOD OF SYNTHESIZING THE SAME - Provided is a polymer compound having a furan ring having a degree of polymerization of 185 or more and 600 or less. This polymer compound has excellent mechanical strength (flexural strength). | 05-14-2009 |
20090137749 | PROCESSES FOR REDUCING ACID CONTENT OF A POLYALKYLENE TEREPHTHALATE AND USING SUCH IN THE PRODUCTION OF MACROCYCLIC POLYESTER OLIGOMER - The invention relates to a method for producing low-acid polyalkylene terephthalate from which MPO can be advantageously manufactured. In certain embodiments, the acid content of commercially available polybutylene terephthalate (PBT) is reduced by adding a small amount of 1,4-butane diol (BDO) to a solution of the commercially available PBT in refluxing ortho-dichlorobenzene (oDCB) solvent. | 05-28-2009 |
20090176943 | Novel Biodegradable Polymer - The present invention relates to new biodegradable polymers. These polymers comprise biodegradable polyester-based prepolymers, to which ring-structured anhydrides which have different hydrophobicities have been connected, and which are either coupled to form linear thermoplastic polyester anhydrides or cross-linked to form network-structured polyester anhydrides. It is possible to adjust widely the degradation rate and mechanism of the polymers according to the present invention, and thus they can be used, for example, in the controlled dosing of pharmaceutical ingredients, for tissue technological applications, in surgery and in bioactive composites. | 07-09-2009 |
20090186991 | METHOD FOR PRODUCING POLYESTER BLOCK COPOLYMERS - Disclosed is a method which produces a polyester block copolymer by continuously feeding a molten crystalline aromatic polyester (A) through a gear pump and lactone (B1) or a lactone composition (B2) through a metering pump into a static mixer respectively at constant rates; and carrying out a reaction between the two components to give the polyester block copolymer. In this method, the crystalline aromatic polyester (A) is preferably fed so as to give an inlet pressure of the gear pump of 0.0098 MPa (gauge pressure) or more, and the charge pressure of the lactone (B1) or the lactone composition (B2) is preferably controlled to be 1.96 MPa (gauge pressure) or more. According to the method, a polyester block copolymer with constant quality can be industrially efficiently produced through the reaction of a crystalline aromatic polyester with a lactone. | 07-23-2009 |
20090198022 | Solid Phase Polymerization Catalyst System - The invention is a method for making condensation polymers, such as polyethylene terephthalate polyester. The method includes introducing a catalyst system, which includes a coordination catalyst component and an acid component, to a polycondensation reaction. | 08-06-2009 |
20100016516 | Polyester fibers, woven/ knitted fabric, car seat and process for producing polyester fibers - This invention is polyester fibers with an initial tensile resistivity of 15 to 38 cN/dtex, a elastic recovery rate of 70% or more after 20% elongation, and a self-shrinkage percentage of 0.3% to 1.4% after dry heat treatment at 160° C. The polyester fibers of this invention can be used to obtain a woven or knitted fabric resistant against repeated loads, excellent in surface softness and uniformity, and free from projections/recesses and curling. Since the woven or knitted fabric obtained from the polyester fibers of this invention are highly resistant against repeated loads, it can be suitably used as a car seat loaded with human bodies. | 01-21-2010 |
20100063219 | AROMATIC POLYESTER RESIN COMPOSITION AND PROCESS FOR PRODUCTION THEREOF - An aromatic polyester resin composition, comprising: a melt-kneaded product of 99-70 weight parts of an aromatic polyester resin and 1-30 wt. parts (providing a total of 100 wt. parts together with the aromatic polyester resin) of a polyglycolic acid resin, wherein the composition is characterized by a transesterification rate C | 03-11-2010 |
20100093948 | AROMATIC POLYESTER RESIN MOLDINGS AND PROCESS FOR PRODUCTION THEREOF - An aromatic polyester resin molded product, including: a matrix of 99-70 wt. parts of an aromatic polyester resin, and a disperse phase of 1-30 wt. parts (providing a total of 100 wt. parts together with the aromatic polyester resin) of a polyglycolic acid resin present in the matrix, wherein the molded product exhibits an oxygen permeability in its thickness direction which is in a range of 55-85% of a minimum gas permeability P | 04-15-2010 |
20100222523 | Block Coordination Copolymers - The present invention provides compositions of crystalline coordination copolymers wherein multiple organic molecules are assembled to produce porous framework materials with layered or core-shell structures. These materials are synthesized by sequential growth techniques such as the seed growth technique. In addition, the invention provides a simple procedure for controlling functionality. | 09-02-2010 |
20100273956 | COPOLYESTERS HAVING IMPROVED THERMAL STABILITY AND METHODS FOR MAKING THEM - Processes for producing polyethylene terephthalate copolyesters are disclosed, that include the steps of:
| 10-28-2010 |
20110060110 | RESIN PARTICLE AND PROCESS FOR PRODUCTION THEREOF - There is provided a method for producing a resin particle capable of unprecedentedly realizing both excellent heat resistant keeping property and melting property. The present invention is a method for producing a resin particle (X) comprising the step of treating a resin particle (B) containing a resin (A) composed of a crystalline part (a) containing, as an essential constitutional component, a polyester (p1) not containing an aromatic ring or a polyester (p2) containing an aromatic ring, and produced by polycondensation of a polyol component and a polycarboxylic acid component, and a noncrystalline part (b), with liquid or supercritical carbon dioxide (C), and removing (C), wherein a heat of fusion measured by differential scanning calorimetry (DSC) of the obtained (X) satisfies the following relational formula (1): | 03-10-2011 |
20110098418 | Additives For Detergents And Cleaning Agents - The invention relates to additives in the form of non-ionic polyesters comprising terephthalic acid, ethylene glycol, polyethylene glycol, optionally propylene glycol, C—C-alkyl-polyalkene glycol ether, and a multifunctional cross-linked monomer. Said polyesters preferably have a flow factor ff of greater than 8, and preferably have a melting point of over 40° C. and molecular weights Mp of 4,000 to 15,000 g/mol. Said polyesters are suitable as soil release components in detergents and cleaning agents. | 04-28-2011 |
20110105699 | AROMATIC POLYESTER RESIN COMPOSITION - An aromatic polyester resin composition, including: a melt-kneaded product of 99-70 wt. parts of an aromatic polyester resin and 1-30 wt. parts (providing a total of 100 wt. parts together with the aromatic polyester resin) of a polyglycolic acid resin, wherein the aromatic polyester resin is an aromatic polyester resin polymerized with a germanium compound (catalyst), and the polyglycolic acid resin is a polyglycolic acid resin obtained by ring-opening polymerization of glycolide. As a result, gas generation during the melt-processing of a composition obtained by adding a relatively small amount of polyglycolic acid resin to an aromatic polyester resin is effectively suppressed to provide an aromatic polyester resin composition with a good gas-barrier property. | 05-05-2011 |
20110144287 | RESIN PARTICLE AND PROCESS FOR PRODUCTION THEREOF - There is provided a method for producing a resin particle capable of unprecedentedly realizing both excellent heat resistant keeping property and melting property. The present invention is a method for producing a resin particle (X) comprising the step of treating a resin particle (B) containing a resin (A) composed of a crystalline part (a) containing, as an essential constitutional component, a polyester (p1) not containing an aromatic ring or a polyester (p2) containing an aromatic ring, and produced by polycondensation of a polyol component and a polycarboxylic acid component, and a noncrystalline part (b), with liquid or supercritical carbon dioxide (C), and removing (C), wherein a heat of fusion measured by differential scanning calorimetry (DSC) of the obtained (X) satisfies the following relational formula (1): | 06-16-2011 |
20110213100 | NOVEL POLYMERS WITH HYDROXYL ACID BLOCKS - The present invention relates polymers comprising non-degradable blocks and degradable blocks and methods of manufacturing such polymers. | 09-01-2011 |
20110213101 | BLENDS OF POLYACTIC ACID AND THERMO-PLASTIC POLYMERS FOR PACKAGING APPLICATIONS - The invention encompasses blends of polymers including, for example, polylactic acid and polyethylene terephthalate and articles manufactured therefrom. In certain embodiments, the invention encompasses blends of polymers including, for example, polylactic acid and polyethylene terephthalate that are useful in packaging and have improved physical properties, such as flexibility, elongation and/or dead-fold. In addition, the polymer blends of the invention may be suitable for a number of applications, such as in the manufacture of disposable bottles, wraps, bags and other packaging materials or as coating materials. | 09-01-2011 |
20110224385 | RESIN COMPOSITION COMPRISING A CYCLIC CARBODIIMIDE - A resin composition which comprises a polyester and is free from a smell produced from a free isocyanate compound. | 09-15-2011 |
20110237757 | Polyesters From Assymetrical Monomers Based Upon Bisanhydrohexitols - Asymmetrically substituted compounds of bisanhydrohexitols are described, including the bisanhydrohexitol isosorbide. The compounds are useful as AB monomers. The synthesis of polymers from the monomers is also described. | 09-29-2011 |
20110257346 | Polyester Ethers Derived From Asymmetrical Monomers Based Upon Bisanydrohexitols - Asymmetrically substituted compounds of bisanhydrohexitols are described, including the bisanhydrohexitol isosorbide. The compounds are useful as monomers. The synthesis of polymers from the monomers is also described. | 10-20-2011 |
20110294962 | CROSS LINKED FIBERS AND METHODS OF MAKING SAME USING TRANSITION METAL IONS - The present disclosure relates to a method of forming fibers. First and second precursors, each possessing a core and at least one functional group known to have click reactivity, are mixed in a hopper. The mixed precursors are then extruded through an extrusion die to crosslink and produce a filament. Polymerization of the first and second precursors is catalyzed by transition metal ions. | 12-01-2011 |
20120065342 | METHOD FOR PRODUCING CRYSTALLIZED POLYESTER - A method for producing a crystallized polyester comprises the crystallization step of applying a shear and/or a pressure to a polyester selected from an aliphatic polyester and a polyalkylene terephthalate at a temperature of (Tm−70° C.) to (Tm+20° C.), where Tm is a melting point of the polyester, thereby converting the polyester into a state having a crystallinity of 10% or more and fluidity. | 03-15-2012 |
20120220735 | HIGH MOLECULAR WEIGHT POLYESTER POLYMERS WITH REDUCED ACETALDEHYDE - Polyester compositions, especially polyethylene terephthalate homopolymer and copolymers, are disclosed containing titanium catalysts and catalyst deactivator added late in the manufacturing processing having reduced acetaldehyde generation rates. The polyester compositions are low in free acetaldehyde, making them suitable for fabrication into beverage containers for relatively tasteless beverages such as bottle water. Furthermore, the polyesters are polymerized to a high inherent viscosity in reduced processing time, without the necessity of further polymerization in the solid state, and in the absence of acetaldehyde scavengers leading to polyester polymers having reduced color. | 08-30-2012 |
20120238706 | POLYMERIC MATERIALS - The present invention relates to a polymer comprising as part of its polymer backbone a moiety of Formula (II): | 09-20-2012 |
20130012665 | BIAXIALLY ORIENTED POLYESTER FILM FOR BACKSHEET OF SOLAR BATTERIES - The present invention provides a biaxially oriented polyester film for a backsheet of solar batteries which exhibits a good hydrolysis resistance and a low haze. The present invention relates to a biaxially oriented polyester film for a backsheet of solar batteries, comprising titanium in an amount of not more than 20 ppm in terms of a titanium atom, phosphorus in an amount of not more than 70 ppm in terms of a phosphorus atom, and antimony in an amount of not more than 10 ppm in terms of an antimony atom; and having a carboxyl end group content of not more than 26 equivalents/t and an intrinsic viscosity of 0.65 to 0.90. | 01-10-2013 |
20130059985 | METHOD OF MANUFACTURING POLYBENZOXAZOLE PRECURSOR - The present invention provides a method for producing a polybenzoxazole precursor having reduced contents of residual aprotic polar solvent and residual halogen without discharging a large amount of waste water during purification. The present invention specifically relates to a method for producing a polybenzoxazole precursor, which comprises synthesizing a polybenzoxazole precursor in an aprotic polar solvent, adding and mixing water and a water-insoluble solvent with the resulting polybenzoxazole precursor solution to still stand the solution, and then separating a water layer from the solution to reduce a content of impurities remaining in the polybenzoxazole precursor. | 03-07-2013 |
20130144014 | MULTI-ARM BLOCK COPOLYMERS AS DRUG DELIVERY VEHICLES - The invention provides methods for making copolymers and multi-arm block copolymers useful as drug delivery vehicles. The multi-arm block copolymers comprise a central core molecule, such as a residue of a polyol, and at least three copolymer arms covalently attached to the central core molecule, each copolymer arm comprising an inner hydrophobic polymer segment covalently attached to the central core molecule and an outer hydrophilic polymer segment covalently attached to the hydrophobic polymer segment, wherein the central core molecule and the hydrophobic polymer segment define a hydrophobic core region. The solubility of hydrophobic biologically active agents can be improved by entrapment within the hydrophobic core region of the block copolymer. The invention further includes pharmaceutical compositions including such block copolymers, pharmaceutical compositions, and methods of using the block copolymers as drug delivery vehicles. | 06-06-2013 |
20130165599 | Modified Polyamide Resin with Heat Resistance, Moldability and Whiteness and Method for Preparing the Same Using Polyester Resin - A modified polyamide resin includes repeating units derived from dicarboxylic acid; and repeating units derived from aliphatic saturated diamines in its chain. The repeating units derived from aliphatic saturated diamines includes repeating units derived from an aliphatic saturated C2 to C6 diamine and from an aliphatic saturated C6 to C12 diamine which is different from the aliphatic saturated C2 to C6 diamine | 06-27-2013 |
20130178591 | ADVANCED POLY EPOXY ESTER RESIN COMPOSITIONS - A poly epoxy ester resin composition of the following chemical structure: where n is a number from 2 to about 3000; each m independently has a value of 0 or 1; each R | 07-11-2013 |
20130237672 | Novel Oligoester - Novel polyglycerol oligoesters derived from reaction of polyglycerol with a mixture of mono and diacids and also combinations of these novel polyglycerol oligoesters with known polyol monoesters, particularly known polyglycerol monoesters are disclosed. The use of these novel polyglycerol oligoesters and combination of esters as emulsifiers, solubilisers and/or thickeners especially in personal care formulations is also disclosed. | 09-12-2013 |
20130245205 | METHOD FOR PRODUCING POLYBUTYLENE TEREPHTHALATE BASED RESIN COMPOSITION, AND POLYBUTYLENE TEREPHTHALATE-BASED RESIN COMPOSITION FOR MOLDING - Provided are: a method for producing a polybutylene terephthalate-based resin composition which is capable of providing a molded article obtained therefrom with excellent physical properties such as excellent mechanical strength, while stably maintaining high fluidity when melted; and a polybutylene terephthalate-based resin composition for molding. Specifically, after melting a mixture that contains (A) a polybutylene terephthalate resin and (B) a polyvalent hydroxyl group-containing compound, (C) a phosphorus compound is added thereto. It is preferable to use a glycerin fatty acid ester or an ether obtained by an addition reaction of an alkylene oxide to a diglycerin as (B) a polyvalent hydroxyl group-containing compound. | 09-19-2013 |
20130281635 | POLYESTER COMPOSITION FOR SOLAR BATTERY AND METHOD FOR PRODUCING SAME - The present invention provides a polyester composition for a solar battery, which includes a dicarboxylic acid component having terephthalic acid as a main component and a diol component having ethylene glycol as a main component, the polyester composition satisfying the following Formulae (1) to (5): 0.65≦intrinsic viscosity≦0.90 (1); 0.7≦M/P≦1.3 (2); 200 ppm≦P≦600 ppm (3); amount of terminal carboxyl groups≦15 eq/t (4); and amount of terminal methoxy groups≦10 eq/t (5) (in the Formula (2), M represents the number of moles of an alkaline metal element and/or an alkaline earth metal element per 10 | 10-24-2013 |
20130324679 | PERYLENEBISIMIDE-POLYESTER BLEND - The present invention provides a perylenebisimide-polyester blend and a chemical blending process for the preparation thereof. The perylenebisimide-polyester blend prepared is useful in organic light emitting diodes, solar cells and such other photovoltaic applications. | 12-05-2013 |
20130331526 | TEMPERATURE-SENSITIVE POLYETHYLENE GLYCOL / POLYESTER BLOCK COPOLYMER IN WHICH BIOACTIVE FUNCTIONAL GROUP IS INTRODUCED INTO SIDE CHAIN THEREOF - The present invention relates to preparation and application of a temperature-sensitive polyethylene glycol/polyester block copolymer having a bioactive functional group introduced into a side chain thereof. More specifically, it relates to a temperature-sensitive polyethylene glycol/polyester block copolymer including a lactide segment having a bioactive functional group introduced into a side chain thereof and a method for preparing same. The temperature-sensitive polyethylene glycol/polyester block copolymer according to the present invention having a bioactive functional group introduced into a side chain thereof can be widely used as a drug delivery system, a support for tissue engineering, an adhesion inhibitor, etc. | 12-12-2013 |
20130338317 | UNSATURATED POLYESTER RESIN COMPOSITIONS - The present invention relates to a pre-accelerated resin composition, characterized in that the resin composition comprises an unsaturated polyester resin and/or a vinyl ester resin, a soluble copper compound and a heterocyclic aromatic amine and which resin composition is essentially free of cobalt. The present invention further relates to a two component composition in which the first component comprises such a resin composition and in which the second component comprises an organic peroxide. | 12-19-2013 |
20140100342 | Fluorine-Containing Polymerizable Monomer and Polymer Compound Using Same - Disclosed in the present invention are a fluorine-containing polymerizable compound of the general formula (1) and a polymer compound obtained therefrom: | 04-10-2014 |
20140135455 | TRANSKETALIZED COMPOSITIONS, SYNTHESIS, AND APPLICATIONS - The present disclosure relates to the preparation of ketal compounds from polyols and oxocarboxylates, and uses thereof. | 05-15-2014 |
20140221578 | RESIN COMPOSITION FOR SEALING ELECTRICAL AND ELECTRONIC PARTS, METHOD FOR PRODUCING SEALED ELECTRICAL AND ELECTRONIC PARTS, AND SEALED ELECTRICAL AND ELECTRONIC PARTS - It is provided that a resin composition for sealing electrical and electronic parts that can provide a flame-retardant sealed electrical and electronic part having no bleed out of a flame resistor while maintaining filling properties of a sealant in the practical level and adhesion between the sealant and an electrical and electronic part. A resin composition for sealing electrical and electronic parts, comprising a copolymer polyester elastomer (X), a brominated epoxy resin (B1), a non-brominated epoxy resin (B2) and a polyolefin resin (C), and having a melt viscosity of 5 dPa·s or more and 3.0×103 dPa·s or less when dried to a water content of 0.1% or less, heated to 220° C., subjected to a pressure of 1 MPa, and then extruded from a die having a hole diameter of 1.0 mm and a thickness of 10 mm, a sealed electrical and electronic part using the resin composition for sealing electrical and electronic part, and a method for producing the sealed electrical and electronic parts. | 08-07-2014 |
20140221579 | NOVEL POLYMERS WITH HYDROXYL ACID BLOCKS - The present invention relates to the preparation of modified polymers by incorporating a compositional modifier into a polymer to produce the modified polymer. More particularly, the invention relates the preparation of condensation type copolyesters or copolyamides by joint short length polyester or polyester oligomers or short length polyamide or polyamide oligomers with a modifier which contains hydroxyl acids blocks. | 08-07-2014 |
20140357807 | POLYBUTYLENE TEREPHTHALATE RESIN PELLETS, AND PRODUCTION METHOD FOR SAID POLYBUTYLENE TEREPHTHALATE RESIN PELLETS - Provided is technology that causes polybutylene terephthalate resin to react with a reactive compound and reduces the thermal decomposition of the polybutylene terephthalate resin, when performing reactive processing method using the polybutylene terephthalate resin. During production of polybutylene terephthalate resin pellets, the polybutylene terephthalate resin (A) and a reactive compound (B) that reacts with the polybutylene terephthalate resin (A) are reacted such that the difference between the intrinsic viscosity of a polybutylene terephthalate resin composition configuring the polybutylene terephthalate resin pellets and the intrinsic viscosity of a polybutylene terephthalate resin composition configuring a polybutylene terephthalate resin molded article is no more than 0.05 dL/g, and the amount of carboxylic group ends in the resin included in the polybutylene terephthalate resin pellets is adjusted so as to be no more than 25 meq/kg. | 12-04-2014 |
20140371402 | POLYAMIDES AND POLYESTERS BLENDED WITH A LITHIUM SALT INTERFACIAL TENSION REDUCING AGENT - A polymer composition and wall of a container made from such composition is set forth comprising a polyamide and polyester and a sufficient amount of an interfacial tension reducing agent such that the polyamide domains stretch disproportionately to the amount of stretch experienced by the polyester both with and without a cobalt salt. | 12-18-2014 |
20150094431 | THERMOPLASTIC RESIN COMPOSITION AND SHEET USING SAME - This thermoplastic resin composition (D) contains a polycarbonate resin (A), a polyester resin (B) which comprises diol structural units and dicarboxylic acid structural units in which the ratio of diol structural units having a cyclic acetal skeleton to all diol structural units is 20 to 60 mol %, and a polyester resin (C) other than the polyester resin (B), wherein the ratio of the polycarbonate resin (A) to the total of the polycarbonate resin (A), the polyester resin (B) and the polyester resin (C) is 15 to 98 wt %, the ratio of the polyester resin (B) is 1 to 80 wt %, and the ratio of the polyester resin (C) is 1 to 60 wt %; further provided is a sheet using said thermoplastic resin. | 04-02-2015 |
20150099853 | Novel Biodegradable Elastomeric Scaffold for Tissue Engineering and Light Scattering Fingerprinting Methods for Testing the Same - The present invention is directed to a novel biocompatible polymer that may be used in tissue engineering. More specifically, the specification describes methods and compositions for making and using citric acid copolymers. | 04-09-2015 |
20150126687 | CHEMICAL MODIFICATION OF LIGNIN AND LIGNIN DERIVATIVES - A method for producing a trans-esterified hydroxypropyl lignin (HPL) is provided in one example embodiment and includes precipitating a lignin, dissolving the precipitated lignin in a solution, adding a reagent to the solution, adjusting the pH of the solution, allowing reactions in the solution to occur for a predetermined amount of time, precipitating the solution to produce a precipitate, and washing, filtering, and drying the precipitate to produce the trans-esterified HPL. In one example, a thermoplastic may be added to produce a trans-esterified HPL/thermoplastic blend. | 05-07-2015 |
20150148499 | FLAME RETARDANT BLOCK COPOLYMERS FROM RENEWABLE FEEDS - A flame retardant block copolymer is prepared from renewable content. In an exemplary synthetic method, a bio-derived flame retardant block copolymer is prepared by a ring opening polymerization of a biobased cyclic ester and a phosphorus-containing polymer. In some embodiments, the biobased cyclic ester is lactide. In some embodiments, the phosphorus-containing polymer is a hydroxyl-telechelic flame retardant biopolymer prepared by a polycondensation reaction of a biobased diol (e.g., isosorbide) and a phosphorus-containing monomer (e.g., phenylphosphonic dichloride). In other embodiments, the phosphorus-containing polymer is synthesized from a dioxaphospholane monomer. | 05-28-2015 |
20150353725 | METHOD FOR PRODUCING POLYESTER RESIN COMPOSITION - The present invention relates to a process for producing a polyester resin composition, including the step of mixing a polyester resin (A), an aromatic carbodiimide (B) and an aliphatic polycarbodiimide (C) at a temperature not lower than a melting temperature of the polyester resin, in which the polyester resin (A) and the aromatic carbodiimide (B) are mixed in the presence of the aliphatic polycarbodiimide (C). | 12-10-2015 |
20160002463 | A POLYMERIC COVER AND A PART OF AN ELECTRICAL CABLE - Cover for an electrical cable or electrical wire and a part of an electrical cable characterized in that the cover and the part consists of a polymer composition comprising a thermoplastic copolyetherester elastomer comprising 75-85 wt. % soft segments derived from poly(tetrahydrofuran) diol (pTHF) having a number average molecular weight (Mn) of 2500-4000 kg/kmol. | 01-07-2016 |
20160045645 | BIODEGRADABLE POLYMER WITH ENHANCED PHYSICAL PROPERTIES INCLUDING STEREOCOMPLEX ORGANIC FILLER AND METHOD FOR PRODUCING THE SAME - Disclosed is a biodegradable polymer whose physical properties are improved by the presence of a stereocomplex organic filler. According to exemplary embodiments, the biodegradable polymer including a stereocomplex organic filler can find application in various fields, including biodegradable materials and medical materials, where conventional biodegradable polymers are difficult to use due to their inherent problems such as poor heat resistance and low strength. Also disclosed is a method for producing the biodegradable polymer. | 02-18-2016 |