Patents
Sitemap › C08 - Organic macromolecular compounds; Their preparation or chemical working-up; Compositions based thereon › C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds › C08G 64 - Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
Patents for C08G 64 - Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule (9,881)
12/1981
12/15/1981CA1114542A1 Branched segment polymers
12/08/1981US4304899 Polycarbonate compositions having improved barrier properties
12/02/1981EP0040863A1 Flame-retardant polycarbonate polyblends
11/1981
11/11/1981EP0039452A2 Process for preparing aromatic polycarbonates
11/10/1981US4299948 Macrocyclic polycarbonates
11/10/1981US4299926 Polymeric light stabilizers for plastics
10/1981
10/13/1981US4294954 Polycarbonate copolymers
10/13/1981US4294953 Process for preparing a branched polycarbonate
09/1981
09/22/1981US4291151 Process for preparing polycarbonate using cyclic di- or triamine catalyst
09/22/1981US4291150 Process for preparing polycarbonate using non-cyclic polyamine catalysts
09/22/1981CA1109594A1 Color-stabilized halobisphenolethylene polycarbonates
08/1981
08/25/1981US4286086 Process for preparing polycarbonate using sterically hindered secondary amine catalysts
08/25/1981US4286085 Promoters interfacial polymerization
08/25/1981US4286084 Process for preparing polycarbonate using certain nitrogen-containing heterocyclic compounds as catalysts
08/25/1981US4286083 Method of preparing polyester carbonates
08/19/1981EP0033826A1 Thermoplastic aromatic polyphosphonate carbonates with thermal resistance to ageing, their preparation and their use
08/18/1981US4284757 Thermotropic aromatic copolyesters and processes for their preparation
08/11/1981CA1106999A1 Polycarbonate diols for use in polycarbonate urethanes
08/05/1981EP0033089A2 Heterocyclic-aromatic oligocarbonates, their preparation, their use in the manufacture of highy molecular-weight heterocyclic-aromatic copolycarbonates, these copolycarbonates and their mixtures with other thermoplastics
08/04/1981US4282391 Continuous process for producing halogenated diphenols
08/04/1981CA1106532A1 Process for preparing polycarbonates
07/1981
07/28/1981US4281101 Process for the preparation of aliphatic-aromatic polycarbonates with diphenol carbonate end groups and their use for the preparation of high-molecular, segmented, aliphatic-aromatic polycarbonate elastomers which can be processed as thermoplastics
07/15/1981EP0031958A2 Fire retardant polycarbonates with improved critical thickness and process for their preparation
07/07/1981US4277600 Tetraphenolic compounds and polycarbonates containing the same
07/07/1981US4277599 Process for preparing polycarbonates using pyrrole catalysts
07/07/1981US4277598 Process for preparing polycarbonates using cyclic amidine catalysts
07/07/1981US4277597 Process for preparing polycarbonates using sterically hindered heterocycloaliphatic secondary amine catalysts
06/1981
06/23/1981US4275187 Using pure halogenated diphenols to produce white polycarbonates
06/23/1981CA1103840A1 Polycarbonates with end groups containing double bonds which can be crosslinked by uv light
06/23/1981CA1103443A1 Colorless polycarbonate articles
06/02/1981CA1102480A1 Segment polymers derived from aromatic vinyl-diene block polymer anion and aromatic polycarbonate
05/1981
05/27/1981EP0029242A2 Process for producing a mixed halogen-containing polycarbonate resin
05/27/1981EP0029111A1 Thermoplastic aromatic copolycarbonates, process for their preparation from 2,2-bis(4-hydroxyphenyl)-1,1,1,3,3,3-hexafluor propane and their use
05/27/1981EP0029097A2 Halogen-containing block copolycarbonate and process for making same
05/26/1981US4269964 Polycarbonates with alkylphenyl end groups, their preparation and their use
05/19/1981US4268658 Process for preparing polycarbonates using iminoethers as catalysts
05/19/1981US4268647 Organic materials having meta, para-isopropylidene diphenoxy units and method
05/19/1981CA1101593A1 Color-stabilized halobisphenolethylene polycarbonates
05/12/1981US4267305 Process for preparing polycarbonates using nitrogen crown-cyclic compounds as catalysts
05/12/1981US4267303 Process for the preparation of polymers with diphenol carbonate end groups
05/12/1981US4267120 Used as a reactant in producing polyurethane or polyisocyanurate foams
04/1981
04/22/1981EP0027144A1 Polycarbonates stabilized by halohydrocarbon, halocarbon or silane groups
04/14/1981US4262113 Process for preparing polycarbonates using amino guanidine or amino amidine catalysts
04/14/1981US4262112 Interfacial polymerization to produce high molecular weight aromatic polycarbonate
04/14/1981US4262111 Process for preparing polycarbonates using amidine catalysts
04/14/1981US4262110 Process for preparing polycarbonate using cyclic iminoethers as catalysts
04/07/1981US4260831 Oligomerization of m-isopropenylphenol
04/07/1981US4260732 UV Stabilized polycarbonate resins
04/07/1981US4260719 UV stabilized polycarbonate resins
04/07/1981US4260691 Polymeric light stabilizers for plastics
04/07/1981US4260689 Polymeric light stabilizers for plastics
04/01/1981EP0025937A2 Thermoplastic polycarbonates, process for their preparation, bis-halo-formates of hexahydro-furo (3,2-b) furan-3,6-diols, and polycarbonate compositions
04/01/1981EP0025928A1 Process for preparing aromatic polycarbonates by the interfacial process
04/01/1981EP0025851A1 Process for the production of polycarbonate-polyether block copolymers
03/1981
03/24/1981US4258174 Process for preparing polycarbonates using isourea catalysts
03/11/1981EP0024672A1 High-molecular segmented thermoplastically processable aromatic polycarbonates containing dimeric fatty acid esters condensed therein, their preparation and their use
03/11/1981EP0024600A1 Polycarbonate-polyether-copolymer membrane, process for its production and use thereof
03/10/1981US4255557 Preparing polycarbonate oligomers by reacting phosgene with an aqueous solution containing a salt of a dihydric phenol in an organic solvent which comprises previously cooling the aqueous solution and carrying out the reaction at a low temperature
02/1981
02/24/1981US4252940 Copolyester adhesives
02/24/1981US4252939 Method for manufacture of aromatic polyester-polycarbonate
02/24/1981US4252922 Blends with polyestercarbonate or polyethercarbonate
02/11/1981EP0023572A1 Process for the production of mixtures of alkylated aromatic polyhydroxy compounds, these mixtures of products and their use in the production of polycarbonates
02/11/1981EP0023571A1 Process for preparing polycarbonates, the polycarbonates obtainable thereby and their use
02/11/1981EP0023570A1 Process for the recovery of polycarbonates
01/1981
01/27/1981US4247484 Keto-diphenol compounds
01/27/1981CA1094738A1 Polycarbonate having improved critical thickness
01/27/1981CA1094572A1 Aromatic carbonates
01/07/1981EP0021216A1 Process for preparing aromatic thermoplastic polyphosphonatocarbonates and polyphosphonatocarbonates
01/06/1981US4243779 Fluorescence, photostability
01/06/1981CA1093245A1 Flame retardant polycarbonate having improved critical thickness
12/1980
12/23/1980US4240968 Concentration of chroman i from a slurry
12/16/1980US4239918 Stabilizers for polyvinyl chloride; monomers for polycarbonates
12/02/1980US4237259 Thermoplastic resins
11/1980
11/28/1980EP0016167A4 Polycarbonate compositions having improved barrier properties.
11/14/1980EP0016057A4 Optically transparent, radiographically opaque tubing.
11/11/1980US4233431 Heat and chemical resistant stabilizers-polycarbonate
11/11/1980US4233412 Polymeric light stabilizers for plastics
11/11/1980US4233410 Sterically hindered polyureas of low molecular weight
11/04/1980US4232131 Polyamide
10/1980
10/30/1980WO1980002290A1 Polycarbonates stabilized by halohydrocarbon,halocarbon or silane groups
10/28/1980US4230548 Chain stopping with an unsaturated derivative of an acyl chloride or a chloroformate
10/01/1980EP0016167A1 Polycarbonate compositions having improved barrier properties.
10/01/1980EP0016057A1 Optically transparent, radiographically opaque tubing.
09/1980
09/30/1980US4225687 Molding materials
09/30/1980US4225474 Organophosphonate coester stabilizers
09/23/1980US4224434 Halogenation of diphenol followed by condensation polymerization with carbonate precursor
09/17/1980EP0015856A1 Aromatic thermotropic copolyesters and processes for their preparation
09/16/1980US4223171 Substituted dichlorovinylidene (diphenols)
09/16/1980US4223170 Heat distortion resistant polycarbonates
09/16/1980US4223104 Adding a chain branching agent to increase the melting point and the viscosity
09/16/1980US4222954 Iodophore compounds
09/09/1980US4221901 Method for dehydrochlorinating 1,1,1-trichloro-2,2-bis(4-hydroxyphenyl)ethane and products obtained therefrom
09/09/1980US4221645 Polycarbonates with end groups containing double bonds which can be crosslinked by UV light
09/02/1980US4220805 Linear dimers of bisphenols and method for making
08/1980
08/20/1980EP0014625A1 Co(polycarbonates) containing alcaline hemiester groups of phosphonic acids
08/20/1980EP0014462A1 Continuous process for the purification of polycarbonate solutions
08/20/1980EP0014412A1 Thermoplastic compositions and process for their preparation
08/20/1980EP0014323A1 Process for the preparation of aromatic polycarbonates from o,o,o',o' tetramethyl-substituted diphenols
08/12/1980US4217438 Polycarbonate transesterification process
08/12/1980US4217437 Process for the preparation of carbonic acid bis-diphenol esters of polyalkylene oxide-diols lengthened via carbonate groups and their use for the preparation of high-molecular, segmented polyether/polycarbonates which can be processed as thermoplastics
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