General Electric Company

General Electric Corporation Gmbh

Dwight J Patterson

Omar M Boutni

William Hilakos

Daniel Joseph Brunelle

Niles R Rosenquist

Kenneth F Miller

David A Williams

Thomas L Evans

Michael Alan Vallance

Linda H Nelson

Thomas G Shannon

Luca P Fontana

Kevin R Stewart

Wie-Hin Pan

Charles F Pratt

Herman B Savenije

A polyestercarbonate copolymer blend which exhibits a glass transition temperature lower than bisphenol-A carbonate homopolymer, shows improved processability and fire-retardancy. The desired lower Tg and improved flow can be achieved by the polycondensation of a dihydric phenol and aliphatic dicarboxylic acid. The condensate is polymerized with a carbonate forming reagent. The resin is fire-retarded with a mixture of halogenated polycarbonate, potassium diphenylsulfone sulfonate and polytetrafluoroethylene.

Flame retardant low Tg polyestercarbonate

Composition

Apparatus and method for the pultrusion of polymeric resins reinforced with continuous lengths of multifilaments and/or fibers comprises wetting the lengths of multifilaments and/or fibers with a polymerization initiator, passing the wet length through an impregnating bath of a resin prepolymer and activating the polymerization in-situ.

Pultrusion apparatus and method for impregnating continuous lengths of

An aromatic polycarbonate resin blend characterized by improved melt-flow properties particularly suited for blow molding. The blend consists of at least 80 percent of cyclic polycarbonate oilgomer or polycarbonate molding resin, the remainder being an aromatic hydroxylated resin such as a phenoxy resin, together with a curing agent.

Aromatic polycarbonate resin blends

Cyclic polycarbonate (or thiol analog) oligomer mixtures are prepared by the reaction of bishaloformates or their thio analogs, or mixtures thereof with dihydroxy or dimercapto compounds, with alkali metal hydroxides and various amines. The oligomer mixtures may be converted to polycarbonates or their thiol analogs by a method which is particularly adaptable to integration with polycarbonate processing operations. Polymerization may be conducted simultaneously with molding, extrusion and the like. The oligomer mixtures are adaptable to the preparation of filled prepregs.

Method for converting cyclic polycarbonate oligomer mixtures to linear

A composition comprising a polycarbonate polydiorganosiloxane random block copolymer reinforced with an effective reinforcing amount of a polymeric aromatic amide in a physical form which achieves reinforcement.

Polyamide reinforced polycarbonate-polydiorganosiloxane composition

A method for producing a high molecular weight aromatic polycarbonate composite material which comprises

Process and composition

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Evansville, IN, United States of America

Dwight J Patterson