Patents for C08G 64 - Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule (9,881)
07/2004
07/06/2004US6759504 Method for quenching of polycarbonate and compositions prepared thereby
07/06/2004US6759125 Development system coatings
07/06/2004CA2067433C Preparation of urethane and carbonate products
07/01/2004WO2004054949A1 Process for the synthesis of bisphenol
07/01/2004US20040127677 chain terminated with a carbocycyl-substituted phenol, especially cyclooctyl or cyclododecyl hydroxybenzoate
07/01/2004US20040126588 Moldable compositions
06/2004
06/30/2004EP1432751A1 Aliphatic polycarbonate homopolymers and copolymers produced by double metal cyanide catalysis
06/24/2004WO2004052980A1 Polymerisation reaction and catalyst therefor
06/24/2004WO2004052972A2 Recycle method for polycarbonate resin waste
06/24/2004US20040122185 especially from 2,5-dioxa-bicyclo[2.2.2]octane-3,6-dione; excellent rheological properties, including increased melt tensions and improved shear thinning
06/24/2004DE10256316A1 Polycarbonat-Formmassen Polycarbonate molding compositions
06/24/2004DE10248950A1 A process for preparation of polycarbonate useful for preparation of shaped bodies and extrudates using a unit of leakage rate less than 10-3 liter He x mbar/s
06/23/2004EP1430013A1 Production of low-particulate bisphenol and use thereof in the manufacturing of polycarbonate
06/23/2004EP1163285B1 STATIC-RESISTANT POLYCARBONATES HAVING DI-t-ALKYLPHENYL END GROUPS
06/23/2004CN1506116A Process for preparing degradable polymer and medical composition containing the said polymer and use thereof
06/23/2004CN1154706C Use of polymer in flexible silk-screen printing ink
06/23/2004CN1154683C Copolycarbonates based on 1.2-idane bisphenol
06/23/2004CN1154682C Method for producing modified polycarbonates
06/22/2004US6753405 More than 35 mole % of units derived from dihydroxydiphenylene and the rest from an alkylidene or cycloalkylidene bisphenol; prepared by melt transesterification; used to prepare transparent moldings
06/22/2004US6753404 Phosgenation; aliphatic diacid salt and carbonate precursor forms aliphate diacid chloride; forming dihydric phenol salt; oligmerization; molecular weight control; condensation polymerization
06/22/2004US6753403 Process and apparatus for producing polycarbonate
06/17/2004WO2004050755A1 Polycarbonate molding compounds
06/17/2004US20040116751 Process for the synthesis of bisphenol
06/17/2004US20040116648 Mixing with chlorinated aromatic hydrocarbon
06/17/2004US20040116642 Melt processability; ester interchange
06/17/2004US20040116618 Aromatic polycarbonate; refractive index, impact strength, heat resistance; optical plastic lenses
06/16/2004EP1427771A1 Method of polycarbonate preparation by solid state polymerization
06/16/2004EP1427770A1 Process for the production of polycarbonate
06/16/2004EP1427693A1 Method for producing diarylcarbonates
06/16/2004EP1177095B1 Uv-stabilized polymeric structures
06/16/2004EP1095957B1 Process for producing aromatic polycarbonate
06/16/2004EP0976772B1 Process for producing polycarbonate resin
06/16/2004CN1505649A Process for continuous production of polycarbonates and a reactor therefor
06/16/2004CN1505648A Copolycarbonate diol and thermoplastic polyurethane obtained therefrom
06/16/2004CN1153799C Method for crystallizing low-molecular polycarbonate and process for producing polycarbonate resin from the same
06/16/2004CN1153798C Process for producing polycarbonate
06/16/2004CN1153797C Polycarbonate moulded bodies with improved optical properties
06/15/2004US6750314 Reacting phenol with acetone in presenc eof acid catalyst; forming bisphenol a
06/15/2004US6750313 High refractive index and low dispersion characteristics; optical lenses, films, discs; polycarbonate resin containing a phosphonic acid group
06/10/2004WO2004012239A3 Photosensitive bottom anti-reflective coatings
06/10/2004US20040108196 System for distilling liquor and devices for the system
06/09/2004EP1426396A1 Process for producing polycarbonate oligomer and process for producing polycarbonate resin from the same
06/09/2004EP1425337A1 Method for recycling polycarbonates
06/09/2004EP1425332A1 Process for preparing polycarbonate
06/09/2004CN1152905C Novel polyoxyalkylenepolyols and process for producing ring-opened polymer
06/08/2004US6747119 Reacting the hydroxyl-containing polycarbonate with a mixture of a symmetrical optionally activated aromatic carbonic acid diester and (c) an optionally substituted aromatic hihydroxy compound, diol or diacid.
06/08/2004US6747118 Adduct of phosphonium compound and phenol; crystal structure
06/03/2004WO2004037893A3 Polycarbonates, polyester carbonates and polyesters containing cycloalkyl-substituted phenols in a lateral position
06/03/2004US20040106765 reacting a carbonate with a diphenol or dialcohol in the presence of a transesterification catalyst;
06/03/2004US20040106731 Stress resistance; noncracking; mixture with graft polymer
06/03/2004US20040103717 Process for the production of polycarbonate which is damaged to a particularly small extent by oxygen
06/02/2004EP1423452A1 Process for preparing polycarbonate
06/02/2004EP1423245A1 Method for removing water and other volatile components from polymer powders
06/02/2004CN1501952A Polycarbonate having a low shear thinning behavior
06/01/2004US6743888 Having protected pendant hydroxyl group capable of cross-linking with polyisocyanate; robust durable photoconductive imaging members; solvent and abrasion resistance
06/01/2004US6743557 Positive charging single-layer organic photoreceptor for liquid development
05/2004
05/27/2004WO2004044033A1 Polycarbonate copolymer, resin composition, and molded article
05/27/2004WO2004011523A3 Novel phase change solvents
05/27/2004WO2003100206A8 Method for preparing high molecular weight polycarbonate
05/26/2004EP1123339B1 Continuous interfacial method for preparing aromatic polycarbonates
05/26/2004CN1500107A Method for producing oligocarbonates
05/26/2004CN1500106A Method for producing polycarbonates
05/26/2004CN1500105A Melt polycarbonate catalyst systems
05/25/2004US6740730 Polycarbonate and molded polycarbonate articles
05/25/2004US6740729 Process for producing polycarbonate
05/21/2004WO2004041908A1 Method for making stable, homogeneous melt solutions
05/21/2004WO2004041907A1 Method for making copolycarbonates
05/21/2004WO2004041906A1 Preparation method of high molecular weight polycarbonate resin
05/21/2004WO2004041761A1 Method for purifying 1,1-bis(4'-hydroxy-3'-methylphenyl)cyclohexane and methods of producing polycarbonates therefrom
05/21/2004WO2004041318A1 Method for providing shaped biodegradable and elastomeric structures of (co) polymers of 1,3-trimethylene carbonate (tmc), shaped biodegradable and elastomeric structures, and the use of these structures
05/20/2004US20040096609 Carrier as supplying vehicle; binding to adjuvant; melt processability of polyethylene terephthalate
05/19/2004EP0807657B1 Process for producing polycarbonate
05/19/2004CN1150250C Method for prodcuing polycarbonate
05/13/2004US20040092699 Copolycarbonate diol and thermoplastic polyurethane obtained therefrom
05/13/2004DE10249270A1 A process for preparation of polycarbonate by a phase boundary surface method useful for production of extrudates and shaped parts, e.g. plates, audio CDs, DVDs, minidisks, lens for photo and film cameras, mobile phone housings
05/12/2004EP1417248A1 Method for making polycarbonate
05/12/2004CN1149251C Dyed molding product
05/11/2004US6734279 Two step production of polycarbonates
05/11/2004US6734277 Polycarbonate compositions incorporating long chain alkylphenol endgroups
05/11/2004US6734151 Process for producing a high-purity oxygenic compound and lubricating oil
05/06/2004WO2004037895A1 Process for producing polyalkylene carbonates
05/06/2004WO2004037894A1 Production of polycarbonate with particularly little damage due to oxygen
05/06/2004WO2004037893A2 Polycarbonates, polyester carbonates and polyesters containing cycloalkyl-substituted phenols in a lateral position
05/06/2004WO2004037879A2 Monomers containing at least one biaryl unit and polymers and derivatives prepared therefrom
05/06/2004US20040087756 Forming a polycarbonate by reacting diaryl carbonate and a dihydroxy aromatic compound having a melting point of greater than 200 degrees C. in the presence of a transesterification catalyst
05/06/2004US20040086462 Radio-opaque polymer biomaterials
05/06/2004US20040086461 Radio-opaque polymer biomaterials
05/06/2004US20040086458 Radio-opaque polymer biomaterials
05/06/2004US20040086446 Dental resin materials, method of manufacture, and uses thereof
05/06/2004EP1414888A1 Extrusion method for making polycarbonate
05/06/2004EP1414887A1 Method of polycarbonate preparation
05/06/2004EP1120435B1 Apparatus and method for producing resin
05/06/2004EP1094873B1 Method for isolating polymers from solutions
05/06/2004DE10248951A1 Production of polycarbonate for use in moulded and extruded products involves a total filtration concept in which all product streams, auxiliary substances and operating substances are passed through fine filters
05/06/2004DE10248165A1 Verfahren zur Abtrennung von Restmonomeren und Oligomeren aus Polycarbonat Process for the separation of residual monomers and oligomers of polycarbonate
05/06/2004DE10248021A1 Production of polycarbonate for use in molded or extruded products involves interfacial polymerisation with a work-up process in which a holding tank is interposed between polymer solution wash and filter
05/04/2004US6730748 High impact strength; cold resistance; 4,4*-dihydroxybiphenyl derivative monomers
05/04/2004US6730725 Polycarbonate and resin composition
04/2004
04/29/2004WO2004035655A1 Method of making polycarbonate
04/29/2004WO2004035654A1 Method for separating residual monomers and oligomer from polycarbonate
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