Patents for C08G 63 - Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule (41,521)
07/2002
07/09/2002US6417239 Polymer matrix
07/09/2002CA2075285C Thermally reversible isocyanate polymers
07/09/2002CA2053468C Prolonged release preparation and polymers thereof
07/04/2002WO2002051946A2 Pigment dispersion and method of preparing the same
07/04/2002WO2002051906A2 Polycarbonate resin, method for the manufacture thereof, and articles formed therefrom
07/04/2002WO2002051616A2 Methods of post-polymerisation extruder injection in condensation polymer production
07/04/2002WO2002034814A3 Polyester resin for powder coating
07/04/2002WO2002034813A3 Polyester resin for powder coating
07/04/2002US20020087027 Esterification catalysts
07/04/2002US20020086971 Acid end group poly(D,L-lactide-co-glycolide) copolymers with high glycolide content
07/04/2002US20020086970 Esterifying naphthalene dicarboxylic acid or a derivative with ethylene glycol or a derivative in the presence of a polymerization catalyst that is a reaction product of titanium and cobalt compounds in solution with an alcohol
07/04/2002US20020086969 Component introduction into manufacturing process through recirculation
07/04/2002CA2431823A1 Methods of post-polymerization extruder injection in condensation polymer production
07/03/2002EP1219658A1 Polyoxytetramethylene glycol and process for producing the same
07/03/2002EP1219413A1 Unilaterally mat, sealable, biaxially oriented polyester film
07/03/2002EP1219297A1 Antiobestic agents
07/03/2002EP1218435A1 Method for making polyesters employing acidic phosphorus-containing compounds
07/03/2002EP1218330A1 A process for recovery of acid
07/03/2002EP0968243B1 Apparatus and method for molding polyester articles having low acetaldehyde content directly from the melt formation using flash tank devolatilization
07/03/2002EP0963393B1 Polyester hydrogels
07/03/2002CN1357018A Method for continuous prond. of polybutylene terephthalate from terephthal acid and butane diole
07/03/2002CN1357017A Polylactic acid resin, textile products obtained therefrom, and processes for producing textile products
07/03/2002CN1356347A Copolyester with improved machinability and lustre
07/02/2002US6414108 Biodegradable polymers, the production thereof and the use thereof for producing biodegradable moldings
07/02/2002US6414103 Composition comprising macrocyclic oligomer, flow control agent, and ring-opening polymerization agent, wherein oligomer is polyamide, polyimide or polyamideimide, and polymerization agent is lactam in combination with basic reagent
07/02/2002US6414085 Reacting in absence of catalyst saturated and unsaturated dicarboxylic acids and 2-methyl-1,3-propane diol at elevated temperature with inert gas sparge to remove by-product water and produce unsaturated polyester, adding unsaturated monomer
07/02/2002US6413539 Block polymer
07/02/2002CA2250981C Acidic polylactic polymers
07/02/2002CA2190274C Process for producing polyethylene terephthalate
06/2002
06/27/2002WO2002050159A1 Method for continuos production of polyesters or copolyesters
06/27/2002WO2002050158A2 Polyester plasticizers for halogen-containing polymers
06/27/2002WO2002050157A2 Polyester ionomer composition
06/27/2002WO2002050156A2 Method for making biodegradable polyhydroxyalkanoate copolymers having improved crystallization properties
06/27/2002WO2002018470A3 Method for increasing the molecular weight of a polymer granulate
06/27/2002US20020082381 Modifies rheology of the blends, especially under low shear where the melt strength is enhanced, thermoformability
06/27/2002US20020082380 Polycarbonate resin, method for the manufacture thereof, and articles formed therefrom
06/27/2002US20020082359 Hyperbranched polyol macromolecule, method of making same, and coating composition including same
06/27/2002DE10127147A1 Verfahren zur kontinuierlichen Herstellung von Polyestern oder Copolyestern Process for the continuous production of polyesters or copolyesters
06/27/2002DE10063590A1 Single sided sealable biaxially oriented coextruded polyester film useful for flexible packaging, has at least one base layer polyester thermoplastic, sealable top layer, and matt top layer with specific properties
06/27/2002CA2427509A1 Method for making biodegradable polyhydroxyalkanoate copolymers having improved crystallization properties
06/26/2002EP1217029A2 Method for fragmenting cured unsaturated polyester resin and method for separating composite material
06/26/2002EP1217024A1 Process for the preparation of spinnable and dyeable polyester resins
06/26/2002EP1217023A1 Process for producing alkyd resin
06/26/2002EP1217022A2 Process for making polyetherester resins with high aromatic ester content
06/26/2002EP1216841A2 Ink jet recording element with overcoat and printing method
06/26/2002EP1216268A1 Polymeric phosphite composition and hydrocyanation of unsaturated organic compounds and the isomerization of unsaturated nitriles
06/26/2002CN1086712C Moisture-absorptive copolyester and moisture-absorptive fiber made by the same
06/26/2002CN1086708C Polymers, their prep aration and use
06/25/2002US6410678 Aromatic polycarbonate, production method and molded products thereof
06/25/2002US6410645 Multiblock biodegradable hydrogels for drug delivery and tissue treatment
06/25/2002US6410607 Glycolysis process for recycling of post-consumer pet
06/25/2002US6410130 Coatings with a cholesteric effect and method for the production thereof
06/25/2002US6409949 Method for thickening a polyester resin
06/25/2002US6409937 4-hydroxyphenylacetic acid, 3-(4-hydroxyphenyl)propionic acid, terephthalic acid, hydroquinone, 2,6-naphthalene diol, 4,4'-biphenol; acetylation, hydrolysis at reduced pressure for efficient acetic acid removal and higher molecular weight
06/20/2002WO2002048262A2 Polyester bottle resins having reduced frictional properties and methods for making the same
06/20/2002WO2002048237A1 Methods of post-polymerization injection in condensation polymer production
06/20/2002WO2002031020A3 Process for producing poly(1,4-cyclohexylenedimethylene 1,4-cyclohexanedicarboxylate) and the reactor grade polyester therefrom
06/20/2002WO2001014450A8 Preparation of poly(trimethylene terephthalate) with low level of di(1,3-propylene glycol)
06/20/2002US20020077449 Reacting terephthalate component and a diol component to form polyethylene terephthalate precursors; polymerizing precursors via melt phase polycondensation to form polymers of polyethylene terephthalate; introducing reactive carrier
06/20/2002US20020077445 Combining at an extruder condensation polymers having carbonyl functionality and a reactive carrier which is delivery vehicle for one or more additives
06/20/2002US20020077443 Methods of post-polymerization extruder injection in condensation polymer production
06/20/2002US20020077405 Polyester bottle resins having reduced frictional properties and methods for making the same
06/20/2002US20020076639 Neutralizing the carboxyl groups of a dispersion of a polyester resin melt having end groups formed by reacting with an alkyl or alkenyl anhydride, in a heated aqueous medium, cooling the dispersed resin melt
06/20/2002US20020076361 Preparation device of polyester
06/20/2002DE10059612A1 Titan-/Zirkonium-Katalysatoren sowie deren Verwendung zur Herstellung von Estern oder Polyestern Titanium / zirconium catalysts and the use thereof for producing esters or polyesters
06/19/2002EP1215225A1 Polylactic acid resin, textile products obtained therefrom, and processes for producing textile products
06/19/2002EP0832145B1 Thermoplastic biodegradable polyester, a process for the preparation thereof and articles manufactured therefrom
06/19/2002EP0714347B1 Shrinkable copolyester film
06/19/2002CN1354777A Agricultural mulch films with triggered degradation
06/18/2002US6407201 Plasticizers for bowling ball coverstocks
06/18/2002US6407194 Temporarily crosslinked polyester polymers
06/18/2002US6407193 Polyestersiloxane copolymer; random copolymer
06/18/2002US6406766 Active oxygen scavenger packaging
06/13/2002WO2002046286A2 Polyester compositions for hot-fill containers
06/13/2002WO2002046269A2 Adsorber system to replace water column in a polyester process
06/13/2002WO2002046268A1 Alkylene oxide-lactone copolymers
06/13/2002WO2002046267A2 Introduction of components into polyester manufacturing process through recirculation
06/13/2002WO2002046266A2 Low cost polyester process using a pipe reactor
06/13/2002WO2002046265A1 Copolyester with high carboxyl end groups and a method for making
06/13/2002WO2002046255A1 Curable compositions comprising an epoxidised unsaturated polyester and mineral fillers
06/13/2002WO2001093678A3 Agricultural items and methods comprising biodegradable copolymers
06/12/2002EP1212279A2 Purification of aromatic diacids
06/12/2002EP1212278A2 A process for separation of crude naphthalene dicarboxylic acid using reverse osmosis
06/12/2002EP1212277A2 An integrated process for the production of 2,6-naphthalene dicarboxylic acid
06/12/2002EP1212274A1 Carboxylation of hydrocarbons to terephthalic acid or naphthalene dicarboxylic acid
06/12/2002EP1212095A2 Process to make a sustained release formulation
06/12/2002EP1086028B1 Active oxygen scavenger compositions and their use in packaging articles
06/12/2002EP1062260B1 Continuous process for the production of segmented elastomer polyester copolymer
06/12/2002EP0796281B1 Starch derivatives grafted with aliphatic polyesters, procedure for their production and their use
06/12/2002CN1353732A Process and apparatus for crystallisation of polytrimethylene terephthalate
06/12/2002CN1353731A Catalysis with titanium oxides
06/12/2002CN1353730A Process for esterifying 1,3-propanediol
06/12/2002CN1353126A Process for preparing copolyester
06/11/2002US6403762 Crystallizing and preheating polymer in one step, without drying/annealing step in between
06/11/2002US6403758 Bioresorbable compositions for implantable prostheses
06/11/2002US6403756 Biodegradable high molecular weight polyester and method of preparing same
06/11/2002US6403755 Polyesters containing phosphazene, method for synthesizing polyesters containing phosphazenes
06/11/2002US6403754 Analyzing reagents for acidic impurities to determine whether specified threshold values have been exceeded, discarding or recycling any such reagent or compensating with excess alkali metal hydroxide catalyst
06/11/2002US6403728 Melt-shaping resin having specified intrinsic viscosity mixed with tetracarboxylic acid dianhydride as upgrading additive, upgrading shaped article at specified temperature under vacuum or in inert gas stream for time to raise intrinsic viscosity
06/11/2002US6403655 Method of preventing adhesions with absorbable polyoxaesters