Patents for C08G 64 - Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule (9,881)
12/2000
12/05/2000US6156866 Chiral nematic polycarbonates
11/2000
11/28/2000US6153722 Molecule comprises at least one stabilizer comonomer from the group consisting of uv absorbers and antioxidants.
11/23/2000WO2000069947A1 Method for quenching of polycarbonate and compositions prepared thereby
11/22/2000EP1054031A2 Increasing the molecular weight and modification of condensation polymers
11/16/2000WO2000068293A1 Method for obtaining oxacarbonyl polymers, functionalisation, resulting polymers and functionalising agent
11/14/2000CA2004392C Mixtures of poly(alkylene carbonate) polyols and polymers of ethylenically unsaturated esters
11/08/2000CN1058271C One-step synthetic optical disk grade polycarbonate
11/07/2000US6143859 Copolycarbonate preparation by solid state polymerization
11/02/2000WO2000064671A1 Uv-stabilized polymeric structures
11/02/2000WO2000064554A1 Method and device for evaporating polymer solutions of thermoplastic polymers, and a polycarbonate which can be obtained by evaporation
11/02/2000EP1048685A1 Process and polymerizer for producing aromatic polycarbonate
11/02/2000EP1048684A1 Process for producing polycarbonate and optical-disk substrate
10/2000
10/31/2000US6140461 Wetting polycarbonate particles with an alkanol; heating the resulting wetted particles to produce an enhanced crystallinity precursor polycarbonate and effect solid state polymerization thereof
10/31/2000US6140457 Static-resistant polycarbonates having DI-t-alkylphenyl end groups
10/26/2000WO2000063275A1 Branched aromatic polycarbonate, process for producing the same, and blow-molded article thereof
10/25/2000EP0991697A4 Functionalized poly(alkylene carbonate), and use thereof
10/24/2000US6136946 Ester interchange with heating in presence of basic oxide catalyst
10/24/2000US6136945 Method for quenching of polycarbonate and compositions prepared thereby
10/24/2000US6136521 Polycarbonate, and molding and electrophotographic photoreceptor prepared therefrom
10/17/2000US6133402 Catalyst having a zinc center and two ligands where one of the ligands is a propagating group and the other is not; polycarbonates from carbon dioxide and (cyclo)alkylene oxide
10/17/2000US6133394 Method for the preparation of organofunctional organopentasiloxane, organic resin modifier and organic resins
10/12/2000WO2000059984A1 Optical quality polycarbonates with reduced static charge and method for making same
10/12/2000WO2000059983A1 Process for producing polycarbonate
10/11/2000EP1042374A2 Method for hydrogenating aromatic polymers
10/05/2000WO2000058386A1 Batch process for the production of polycarbonate by interfacial polymerization
10/05/2000WO2000058385A1 Highly branched polycondensates
10/05/2000WO2000058072A1 Device and method for degassing plastics, especially polycarbonate solutions of high molecular weight
09/2000
09/28/2000WO2000056801A1 Method for quenching residual catalyst in the production of polycarbonate
09/28/2000DE19914143A1 Vorrichtung und Verfahren zum Entgasen von Kunststoffen, insbesondere von hochmolekularen Polycarbonatlösungen Apparatus and method for degassing of plastics, especially of high-molecular polycarbonate solutions
09/28/2000DE19913533A1 Hochverzweigte Polykondensate Highly branched polycondensation
09/27/2000CN1268148A Branched polycarbonate resin and process for the preparation thereof
09/26/2000US6124422 Combining intermediate polycarbonate containing alkaline catalyst with a powder-free acidic alkyltoluenesulonate quancher to quench the residual basic catalyst
09/21/2000WO2000055851A1 Polycarbonates derived from alicyclic bisphenols
09/21/2000WO2000055237A1 Polycarbonates suitable for use in optical articles
09/21/2000DE19910975A1 Carbonatgruppen enthaltende, mit linearen Polyestern modifizierte Polysiloxane und ihre Verwendung als Zsatzstoffe in Beschichtungen Containing carbonate groups, with linear polyesters modified polysiloxanes and their use as coatings in Zsatzstoffe
09/20/2000EP1036057A1 Radio-opaque polymer biomaterials
09/19/2000US6121452 Process for the preparation of quinophthalones
09/19/2000US6120491 Selective removal of benzyl esters to form pendent carboxylic acid groups by palladium-catalyzed hydrogenolysis from poly-arylates and polycarbonates in a tertiary-amide solvent; kinetics; surgical barriers; implant coatings; drug delivery
09/14/2000WO2000054103A1 Chiral polymer compositions exhibiting nonlinear optical properties
09/13/2000EP1035153A2 With linear polyester modified carbonate-group containing polysiloxanes and their use as coating additives
09/13/2000EP1035151A1 Branched polycarbonate resin
09/13/2000EP1035150A1 Copolycarbonate and process for producing the same
09/13/2000CN1266443A Carbonic diester, aromatic polycarbonate, production apparatus, and process for production
09/13/2000CN1266442A Preparation of dihydroxydiphenyl-copolycarbonates by melt re-esterfification
09/12/2000US6117969 Polycarbonate resin compositions
09/09/2000CA2297504A1 Polysiloxanes containing carbonate groups and modified with linear polyesters and their use as additives in coatings
09/08/2000WO2000052077A1 Process for producing polycarbonate
09/08/2000WO2000052076A1 Polycarbonate resin
09/08/2000WO2000051964A1 Method for preparing hydroxyaromatic chloroformates
09/08/2000CA2300225A1 Chiral polymer compositions exhibiting nonlinear optical properties
09/07/2000DE19859690C1 Polycarbonate used for substrates for optical data storage is prepared from phosgene and sodium bisphenolate with the exclusion of oxygen in an interphase process
09/06/2000EP1033381A1 Process for producing polycarbonate
09/06/2000CN1265686A Copolycarbonates with idane bisphenol base
09/06/2000CN1265685A Copolycarbonates with indan bisphenol base
09/05/2000US6114474 Process for deactivating polycarbonate catalyst residues
08/2000
08/31/2000WO2000050489A1 Method for quenching of catalyst in the production of low molecular weight polycarbonates
08/31/2000WO2000050488A1 STATIC-RESISTANT POLYCARBONATES HAVING DI-t-ALKYLPHENYL END GROUPS
08/31/2000DE19905572A1 Vorrichtung zum Mischen und Reagieren mehrphasiger gasförmiger und flüssiger Gemische und Verwendung dieser Vorrichtung A device for mixing and reacting multiphase gaseous and liquid mixtures and the use of this device
08/30/2000CN1265120A Process for prepn. of aromatic polycarbonate
08/24/2000WO2000049065A1 Addition of treatment agents to solid phase polymerization processes
08/24/2000WO2000026276A3 Method of manufacturing polycarbonates
08/24/2000CA2359082A1 Addition of treatment agents to solid phase polymerization processes
08/23/2000EP1029021A1 Cholesteric oligomers with cross-linked end groups
08/23/2000EP1028991A1 Strictly alternating poly(alkylene oxide ether) copolymers
08/23/2000EP1028774A1 Biodegradable, anionic polymers derived from the amino acid l-tyrosine
08/22/2000US6107440 Aromatic polycarbonate composition
08/22/2000US6106918 Optical quality polycarbonates
08/17/2000WO2000047653A1 Additive-containing molded resin and process for producing the same
08/17/2000WO2000047314A1 Device for mixing and reacting multiphase gaseous and liquid mixtures and use of this device
08/16/2000EP1028137A2 Polymeric matrices and their uses in pharmaceutical compositions
08/15/2000US6103855 Charging dihydroxy compound, inert solvent, water, caustic, carbonyl halide, and catalyst to a vessel, maintaining ph of the reaction mixture between 4 and 12 during charging, activating reaction system that produces chloroformates
08/15/2000US6103854 Polymer having a polycarbonate and/or a polyarylate moiety as a main frame and having a metal alkoxide group as a functional group, is hydrolyzed and polycondensed to form crosslinkages; heat resistance, hardness, strength
08/15/2000US6103837 Reacting at least one polycarbonate and/or dicarbonate of a diol and, if needed, at least one diester of a dicarboxylic acid with at least one specified silicon compound in the presence of an esterifying or ester exchange catalyst
08/10/2000DE19904408A1 Polycarbonate used for substrates for optical data storage is prepared from phosgene and sodium bisphenolate with the exclusion of oxygen in an interphase process
08/09/2000EP1026191A1 Flame retardant compounds, process for their production and flame-retarded organic polymer materials
08/09/2000EP1024898A1 Composition based on a grafted metal oxide, preparation and use in a polymerisation method by opening oxygenated cycles
08/08/2000US6100372 Monocarboxylic acid-terminated polymers of carbon dioxide and an alkylene oxide
08/08/2000US6100367 Coating agent, method of preparing same, and coating material
08/08/2000CA2068878C Polycarbonates, uses thereof, processes for preparing and purifying same
08/03/2000WO2000044811A1 Method for preparing polycarbonates of enhanced crystallinity
08/03/2000WO2000044810A1 Method for preparing copolycarbonates of enhanced crystallinity
08/03/2000WO2000009578A9 Method and materials for fabrication of alumoxane polymers
08/02/2000EP1023357A1 Preparation of dihydroxydiphenyl-copolycarbonates by melt re-esterification
08/02/2000CN1261903A Method for producing polycarbonate
08/02/2000CN1261902A Method for producing branched polycarbonates
08/01/2000US6096852 UV-stabilized and other modified polycarbonates and method of making same
07/2000
07/27/2000WO2000043436A1 Polycarbonate resin for formed article, method for production thereof and container/carrier for semiconductor product using the same
07/26/2000CN1261368A Method for producing phosphonium phenolates
07/25/2000US6093785 Ductility, melt processability; optics
07/25/2000US6093784 Electrophotographic photoconductor and polycarbonate resin for use therein
07/20/2000WO2000042088A1 Polycarbonate resin reduced in release of environmental hormone
07/19/2000EP1020483A2 Process for purifying polycarbonate resin solution
07/19/2000EP1019237A1 Twinscrew extruder, method of making aromatic polycarbonate using a twinscrew extruder, and method of removing volatiles from an aromatic polycarbonate melt
07/19/2000EP1019096A2 Bioresorbable compositions for implantable prostheses
07/19/2000EP0824513B1 Improved synthesis of tyrosine-derived diphenol monomers
07/13/2000DE19900554A1 Verfahren zur Herstellung von aliphatischen Oligocarbonatdiolen aus Dimethylcarbonat und aliphatischen Diolen A process for the preparation of aliphatic oligocarbonate diols of dimethyl carbonate and aliphatic diols
07/12/2000EP1018529A1 Process for producing polycarbonates
07/12/2000EP1018528A2 Polycarbonate resin and process for producing the same
07/12/2000EP1018504A1 Process for the preparation of aliphatic oligocarbonatediols from dimethyl carbonate and aliphatic diols
07/12/2000EP1017755A1 Coatings with a cholesteric effect and method for the production thereof
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