Patents for C08G 64 - Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule (9,881)
02/2000
02/17/2000WO2000008088A1 Polycarbonates made using high activity catalysts
02/17/2000WO2000007799A1 Twin screw extruder, method of making aromatic polycarbonate using a twin screw extruder, and method of removing volatiles from an aromatic polycarbonate melt
02/17/2000WO2000007684A1 Method for evaporating polymer solutions of thermoplastic polymers
02/17/2000DE19835744A1 Verfahren zum Eindampfen von Polymerlösungen thermoplastischer Polymere A method of evaporation of polymer solutions of thermoplastic polymers
02/08/2000US6022943 Base-catalyzed polymerization of a diaryl carbonate and a dihydric phenol under conditions effective to produce a polycarbonate product having an endcap level of 90% or greater.
02/08/2000US6022942 Optical data storage media
02/08/2000US6022941 Branched polycarbonate produced by reactive extrusion
02/02/2000EP0976773A2 Process for producing a polycarbonate resin
02/02/2000EP0976772A1 Process for producing polycarbonate resin
01/2000
01/26/2000EP0973820A1 Method of making polycarbonate prepolymer and method of making high molecular weight polycarbonate
01/26/2000CN1242783A Polysilanes and process for producing same
01/26/2000CN1242386A Process for producing polycarbonate resin
01/25/2000US6018014 Prescribed diol monomer has structure hydroxy-(arylene)-(2-(aminoaryl or heterocycle)vinyl)-(arylene)-hydroxyl;useful for a charge-transport polymer material for an electrophotographic photosensitive medium
01/20/2000WO2000002952A1 Novel polyoxyalkylenepolyols and process for producing ring-opened polymer
01/19/2000EP0972809A2 Organic-inorganic hybrid polymer materials with compositional gradient, and processes for preparing the same
01/13/2000WO2000001755A2 Method for producing polycarbonates with terminal oh groups
01/13/2000WO1999054381A3 Methods for removing volatile components from polymer solutions
01/11/2000US6013251 Antiviral against human immuno deficiency virus (hiv), cytomegalovirus, herpes simplex virus (hsv)
01/05/2000EP0969031A1 Polycarbonate resin, optical-information recording medium substrate made of the same, and optical-information recording medium
01/05/2000DE19829593A1 Verfahren zur Herstellung von Verbindungen mit terminalen OH-Gruppen A process for the preparation of compounds having terminal OH groups
12/1999
12/30/1999DE19827852A1 Concentrating viscous polymer from monomer-solvent mixture to better than one percent
12/29/1999WO1999067002A1 Method for isolating polymers from solutions
12/29/1999EP0730624B1 Carbonate blend polymer compositions comprising a high molecular weight branched carbonate polymer component and methods for their preparation
12/29/1999CA2335577A1 Method for isolating polymers from solutions
12/28/1999US6008315 Manufacturing method for bisphenols and a manufacturing method for polycarbonate
12/23/1999WO1999065970A1 System and process for producing polycondensation polymer
12/23/1999WO1999032526A3 Method for hydrogenating aromatic polymers
12/21/1999US6005020 Bioresorbable compositions for implantable prostheses
12/16/1999WO1999064492A1 Process for producing aromatic polycarbonate
12/15/1999EP0964016A2 Aromatic-aliphatic copolycarbonate and process for producing the same
12/15/1999EP0963395A1 Polymers comprising a fluorinated carbonate moiety
12/15/1999CN1238346A Aromatic-aliphatic copolycarbonate and process for producing the same
12/14/1999US6001958 Crosslinkable polymer, particularly for optical and non-linear optical use, materials or devices using same, and method for preparing said polymer
12/14/1999US6001953 Polycarbonates suitable for use in optical articles
12/08/1999EP0962478A2 Process for producing aromatic/aliphatic copolycarbonate
12/08/1999EP0961801A1 Monomers derived from hydroxy acids and polymers prepared therefrom
12/07/1999USRE36432 Using an alumina-silica; filtration
11/1999
11/30/1999US5993971 Optical information record medium
11/25/1999DE19841234C1 Reversibly thermotropic transparent molding material, useful e.g. in glazing or covers for shading and light-heat regulation in houses and cars etc.
11/24/1999CN1046743C Process for producing aromatic polycarbonate
11/24/1999CN1046699C Process for preparing bisphenol A of good heat stability
11/23/1999US5990362 Etherification of phenol with p-isopropenylphenol or 2-(4-hydroxyphenyl)-2-propanol in the presence of a catalyst, at a reaction temperature of no greater than about 65.degree. c.
11/23/1999US5990262 Process for producing polycarbonates
11/23/1999CA2154151C Automotive refinish primer surfacer
11/18/1999WO1999058593A1 Uv-stabilized and other modified polycarbonates and method of making same
11/17/1999EP0656026B1 Polyarylates containing derivatives of the natural amino acid l-tyrosine
11/16/1999US5986044 Polyureas, polycarbonates, polyesters and polyamide copolymers
11/16/1999US5986037 Polycarbonates from phosgene
11/16/1999US5986019 Process for preparing a copolycarbonate
11/09/1999US5981051 Dissolving polycarbonate prepolymer in solvent under heat, then crystallizing it by cooling and shaping; grains of granular prepolymer hardly fuse together in polymerization suitable for high speed polymerization
11/04/1999WO1999055764A1 Carbonic diester, aromatic polycarbonate, production apparatus, and process for production
11/03/1999EP0754714B1 Process for producing hydroxyl-terminated polycarbonate
11/03/1999CN1233623A Method of preparing polycarbonates by solid state polymerization
11/02/1999US5977265 Method for preparing brominated polycarbonates, and products obtained thereby
11/02/1999US5976746 Electroconductive support; photoconductive layer
10/1999
10/28/1999WO1999054381A2 Methods for removing volatile components from polymer solutions
10/28/1999WO1999054373A1 Curable composition and cured article thereof
10/28/1999DE19817677A1 A process for removal of volatile components from polymer solutions
10/26/1999US5973103 Continuous interfacial method for preparing aromatic polycarbonates
10/26/1999US5973075 Methods for preparing rigid-rod macromonomers with reactive end groups
10/21/1999WO1999052962A1 The construction of copolymer libraries
10/19/1999US5969086 Quaternary bisphenolates, methods for their preparation, and uses thereof
10/19/1999US5969084 Reaction of phosgene with bisphenol in the presence tetraamonium salt by polycondensation to form polycarbonates
10/14/1999DE19816268A1 Cholesterische Flüssigkristallpolymere mit erhöhter Wetterstabilität Cholesteric liquid crystal polymers with increased weather resistance
10/13/1999EP0949292A1 Method for recycling aromatic polycarbonates
10/13/1999EP0949288A1 Method of preparing polycarbonates by solide state polymerization
10/13/1999EP0949287A2 Weather-restistant cholesteric luiquid crystal polymers
10/12/1999US5965688 Interfacial polycarbonate polymerization process and product
10/07/1999WO1999050336A1 Branched polycarbonate produced by reactive extrusion
10/07/1999WO1999050335A1 Stabilized aromatic polycarbonate
10/06/1999CN1230559A Polyphenols as polycarbonate branching agents
10/05/1999US5962622 Weatherproofing, low birefringence; compact disks
10/05/1999US5962558 High molecular weight stabilizer compounds for stabilizing polymers
09/1999
09/30/1999WO1999048947A1 Polycarbonate and optical material
09/29/1999CN1230202A Polycarbonate resin compsns.
09/28/1999US5959960 Method of providing a range of conformalities for optical recording layers
09/28/1999US5959065 P-cumylphenol endcapped polycarbonate; compact disks; specified melt viscosity range
09/23/1999WO1999047580A1 Process for producing aromatic polycarbonate
09/22/1999EP0943641A1 Processes for the preparation of monodisperse polymers, processes for the continuous polymerization of cyclic monomers, and polymers prepared thereby
09/16/1999WO2001002467A1 Apparatus and method for producing resin
09/16/1999WO1999046315A1 Method for producing a liquid formulation of tetraphenylphosphonium phenolate
09/16/1999WO1999046314A1 Flame-retardant resin, composition thereof, and process for producing the same
09/16/1999DE19810745A1 Liquid catalyst formulation for transesterification processes, especially for the solvent-free production of polycarbonate from diphenol and diaryl carbonate
09/16/1999DE19809998A1 Separation of organic metal salts from polymer solution gives a product containing less than 50 parts per million metal salts
09/15/1999EP0941268A1 Polycarbonates
09/15/1999EP0752980B1 Substituted phenyl compounds and processes for preparing the same
09/15/1999EP0597128B1 Ester polymer, production thereof, and electrophotographic photoreceptor made therefrom
09/15/1999CN1228445A Interfacial polycarbonate polymerization process and product
09/14/1999US5952450 Crosslinked polycarbonate and polylactic acid composition containing the same
09/14/1999US5952449 Transesterification polymerization of a molten monomer mixture of an aromatic dihydroxy compound and a diaryl carbonate; high purity and colorless
09/14/1999US5952435 A cured blends comprising a glycidylamine epoxy resin thermosetting resin, a 2-functional epoxy resin, an aromatic polycarbonate thermoplastic resin, an acid anhydride curing agent and reinforcing fibers; a belt for snowmobile
09/08/1999CN1227834A Manufacturing method for bisphenols and manufacturing method for polycarbonate
09/07/1999USRE36293 Polyalkylene glycol polycarbonate based lubricant oil composition
09/07/1999US5948876 Polyphenols as polycarbonate branching agents
08/1999
08/31/1999US5945502 Electroluminescent polymer compositions and processes thereof
08/24/1999US5942594 Polycarbonate and process for producing the same
08/18/1999CN1226274A Aromatic polycarbonate composition
08/18/1999CN1225926A Manufacturing method for polycarbonate
08/11/1999EP0934266A1 Cross-linkers for cross-linkable optical polycarbonates
08/11/1999CN1225377A Polycarbonate formulation and carrier for semiconductor wafers that is opaque to certain light wavelengths
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