Patents for C08G 63 - Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule (41,521)
04/2005
04/07/2005US20050075479 Process for increasing the toughness of solid state polymerized poly (trimethylene terephthalate) pellets
04/07/2005US20050075466 Thermoplastic resin composition
04/07/2005US20050075464 Method of treating polyester polymer and polyester polymer reduced in low-boiling component content
04/07/2005US20050075456 Novel synthetic route for the preparation of hydroxy terminated polyarylates
04/07/2005DE10339742A1 Catalyst especially for use in high-molecular polyester (e.g. polyethylene terephthalate) production consists of a nanoscalar inorganic oxide carrier and an absorbed titanium-containing compound
04/07/2005CA2540412A1 1-vinylpyrrolidin-2-one/ ester copolymers
04/07/2005CA2539607A1 Process for improving color of polycondensates
04/07/2005CA2537061A1 Molecular weight increase and modification of polycondensates
04/06/2005EP1520868A1 Degradable polydioxaneone-based materials
04/06/2005EP1519983A1 Membranes made of cast polyarylate film
04/06/2005EP1519977A1 Polyestercarbonates and methods of manufacture
04/06/2005EP1519976A1 Bis-hydroxyphenyl menthane polyesters and polyester/polycarbonates and methods for making same
04/06/2005EP1519975A1 Water-thinnable polymer precursors, their preparation and use
04/06/2005EP1204521B1 Method for modifying a polymeric material and method for synthesizing a polymeric material, with introducion of at least one chemical compound in an extruder
04/06/2005CN1604939A Copolyether ester composition and air bag cover made therefrom
04/06/2005CN1604859A Instrument panel comprising a layer of a thermoplastic copolyester elastomer composition
04/06/2005CN1603352A Epoxy modified unsaturated polyester resin special for putty and method for making same
04/06/2005CN1195788C Biodegradable low molecular weight triblock poly(lactide-co-glycolide) polyethylene glycol copolymers having reverse thermal gelation properties
04/05/2005US6875839 Forming lactic acid by fermentation of plant extracts
03/2005
03/31/2005WO2005028541A2 Process for the preparation of a polymer composition
03/31/2005WO2005028538A1 Liquid coating compositions having improved whiteness
03/31/2005WO2005028531A2 Process for heating pet pellet feed to a solid stating process by heat exchange with hot solid stated pellets
03/31/2005WO2004110716A8 Compositions and a method for improving reheat rate of pet using activated carbon
03/31/2005WO2004099474A3 Polymer precursor dispersion containing a micropulp and method of making the dispersion
03/31/2005US20050070686 Injection molding medical equipment; chemical resistance to lipids; containing isophthalic, terephthalic acid with cyclohexanediomethanol, neopentyl glycol ; melt processability
03/31/2005US20050070643 Hydroxy-terminated polyarylate with iso- or terephthalate units and dihydroxybenzene units, compound with functional groups chemically reactive with the hydroxy groups (especially a melamine-type resin and urea formaldehyde resin, and optionally a curing catalyst; powder coating
03/31/2005US20050070423 formed by reacting fumed silica and alkyl metalate comprising a tetraalkylorthosilicate, a mercapto-functionalized alkoxysilane, a silyl sulfonic acid compound; useful as catalysts for producing bisphenols for production of polycarbonates
03/31/2005US20050069702 Resinous tube
03/31/2005CA2536296A1 Process for heating pet pellet feed to a solid stating process by heat exchange with hot solid stated pellets
03/30/2005EP1518878A1 Process for producing polyester resin
03/30/2005EP1518877A2 Large polyester containers and method for making same
03/30/2005EP1518876A2 Large polyester containers and method for making same
03/30/2005EP1517939A1 Biaxially oriented polyester film and laminates thereof with copper
03/30/2005EP1517790A1 Moisture-permeable, waterproof and windproof laminated sheet, interlining using the same, and garment containing the interlining
03/30/2005EP1444014A4 High-molecular weight polymers and methods of manufacture
03/30/2005EP1328606A4 Blends of stretchable liquid crystal polymers with thermoplastics
03/30/2005EP1175499B1 Methods for purifying polyhydroxyalkanoates
03/30/2005CN1602331A Brittle polymeric film & tamper-evident labels made therefrom
03/30/2005CN1602328A Production of spherical particles from a melted mass of plastic
03/30/2005CN1195110C High Strength polynaphthalic acid subethyl ester fiber
03/30/2005CN1194704C Polyester with its main train having amino acid and contg. active drug, and its prepn. method
03/29/2005US6872802 Wherein the biodegradable material comprises a ductile and flexible polyhydroxyalkanoate copolymer (polylactones) which is at least partially liquefied for disposal and concurrently decontaminated; medical equipment; hospital food containers
03/29/2005US6872799 Functionalized polymers for medical applications
03/29/2005US6872451 Ionomeric oxygen scavenger compositions
03/29/2005CA2124735C Copolymers of allyl alcohol propoxylates and vinyl aromatic monomers
03/24/2005WO2005026233A1 Preparation method of enteric aqueous dispersed hydroxypropyl methylcellulose phthalate nanoparticle
03/24/2005WO2005026232A1 Process for producing aliphatic polyester and aliphatic polyester
03/24/2005WO2004110394A3 Novell photostabilizers, uv absorbers, and methods of photostabilizing a sunscreen composition
03/24/2005WO2004108792A3 Novel biodegradable aliphatic polyesters and pharmaceutical compositions and applications thereof
03/24/2005WO2004083450A3 Hyperbranched dendron and methods of synthesis and use thereof
03/24/2005US20050065318 Thermal crystallization of polyester pellets in liquid
03/24/2005US20050065317 Water-based system to manufacture polymeric coatings which generally does not require surfactants, although such surfactants may be utilized
03/24/2005US20050065315 Recovering heat from hot PET pellets exiting a solid state polymerization reactor, using this heat to heat cool pellets entering the crystallizer or solid state polymerization reactor, transferred from hot to cool pellets employing a heat exchanger
03/24/2005US20050065293 Polycarbonate polyester molding composition
03/24/2005US20050065292 Addition-condensation copolymer comprising polylactones, polyethers and acrylate terpolymers; polymerizing with starting lactones, an epoxy-based monomer to form a macromonomer in a ring-opening polymerization catalyst, then react with polyethylene glycol acrylate
03/24/2005US20050065282 Macroporous polymeric support; grafting an addition polymer
03/24/2005US20050065247 Liquid coating compositions having improved whiteness
03/24/2005US20050063941 Biodegradable polymeric material for biomedical applications
03/24/2005US20050063938 Tertiary amine functional complex polyester polymers and methods of production and use
03/24/2005US20050062186 Method and device for increasing the limiting viscosty of polyester
03/24/2005DE10337780A1 Continuous production of polymers by 3-stage melt condensation, e.g. polyethylene terephthalate, involves taking some of the product from at least one of the reactors and adding it to preceding or following reactors
03/24/2005DE102004019810A1 Production of thermoplastic polyester for use e.g. in fibres, film or bottles, involves precondensation by passing an esterification product downwards under reduced pressure through a column with structured packing
03/24/2005DE10111767B4 Verfahren zur Herstellung von Polyestern aus Hydroxycarbonsäuren und Polyolen durch Polykondensation A process for the preparation of polyesters of hydroxycarboxylic acids and polyols by polycondensation
03/23/2005EP1516888A1 Process for the preparation of a polymer composition
03/23/2005EP1516887A1 Flexibilized polyaspartic esters
03/23/2005EP1516886A1 Flexibilized polyaspartic esters
03/23/2005EP1516010A1 Method for the production of esters of polyalcohols
03/23/2005EP1516006A1 Block copolymers for surgical articles
03/23/2005EP1478677B1 Method and device for the continuous production of polyesters
03/23/2005EP1420951B1 Multilayer sleeve labels
03/23/2005EP1250374B1 Macrocyclic polyester oligomers and processes for polymerizing the same
03/23/2005EP1079869B1 Synthesis of poly(propylene fumarate) by acylation of propylene glycol in the presence of a proton scavenger
03/23/2005EP1047551B1 Modified copolyesters and improved multilayer reflective films
03/23/2005CN1597776A Preparation process for nano composite of polyester / clay
03/23/2005CN1597744A Method of separating a polymer from a solvent
03/23/2005CN1597730A Miniature condensation polymerization synthesis reaction device
03/23/2005CN1597729A Preparation method of polypara dioxo cyclohexanone capable of raising molecular weight and conversion rate simultaneously
03/23/2005CN1597728A Solid phase polymerization preparation method of liquid crystal copolyester
03/23/2005CN1597727A Solid state polymerization preparation method of liquid crystal copolyester
03/23/2005CN1597726A Copolymeization palyester polymer of copolymerized by hexamethylene and deep dyed copolymerization polyester fibre prepared by it
03/23/2005CN1194026C Polymerization catalyst for polyester, polyester produced with the same, and process for producing polyester
03/22/2005US6870025 Reaction of resorcinol, hydroquinone, methylhydroquinone, bisphenol A, and 4,4'-biphenol with an ester-substituted diaryl carbonate
03/22/2005US6870012 Chain-extended peo/ppo/peo block copolymer, optionally with polyester blocks, combined with cellular or bioactive material
03/22/2005US6869782 Biodegradation polylactone; culture product
03/22/2005CA2379672C Biodegradable poly(alkylene oxide)-poly(p-dioxanone) block copolymer soluble in organic solvents, and drug delivery composition comprising same
03/22/2005CA2173988C Solid state polymerisation of polyesters with low diffusion resistance prepolymer pellets
03/22/2005CA2087913C Aqueous coating compositions from polyethylene terephthalate
03/22/2005CA2087912C Aqueous coating compositions from polyethylene terephthalate
03/17/2005WO2005023906A1 Hyaluronic acid modification product and drug carrier therefrom
03/17/2005WO2005023905A1 Method and device for the continuous production of polymers by melt condensation
03/17/2005WO2005023900A1 Polyester composition and articles with reduced acetaldehyde content and method using vinyl esterification catalyst
03/17/2005WO2005023674A2 Ionomeric oxygen scavenger compositions
03/17/2005WO2005023096A2 Methods and compositions for ultrasound imaging of apoptosis
03/17/2005US20050059796 Crosslinked aliphatic polyester with trifunctional monomer; transparency, permeability; sheets, nets, mulching films; bags and liners; food packaging; containers for milk, yogurt, meat, beverages, sanitary napkins; coatings
03/17/2005US20050059795 Biodegradable saturated/unsaturated thermoplastic polyesters
03/17/2005US20050059792 Transesterifying an alpha , beta -unsaturated ester with hydroxy functional material; reacting transesterified product with primary amine-containing compound; and reacting any remaining primary amine groups with an alpha , beta -unsaturated ester; noncracking, bonding strength, shrinkage inhibition
03/17/2005US20050059791 Flexibilized polyaspartic esters
03/17/2005US20050059777 Fumaric acid diester resin; good optical characteristics, heat resistance and mechanical properties
03/17/2005US20050058590 Spin-coatable liquid for formation of high purity nanotube films
03/17/2005DE4335287B4 Block-Copolyether über Oxonium-Kupplung von Poly(tetramethylenether)glycolen Block copolyether glycols about oxonium coupling of poly (tetramethylene ether)