Bayer Aktiengesellschaft

Mobay Chemical Corporation

Mobay Corporation

Dieter Neuray

Werner Nouvertne

Peter Tacke

Rudolf Binsack

Hugo Vernaleken

Erhard Tresper

Dietrich Michael

Dieter Freitag

Wolfgang Cohnen

James Y Chung

Helmut Korber

Christian Lindner

Sivaram Krishnan

Dieter Margotte

Werner Nielinger

Friedrich Fahnler

Bert Brassat

Winfried Paul

Dieter Rempel

Wolfgang Stix

Karl-Heinz Ott

Hans Rudolph

Hans-Jurgen Kress

Leo Morbitzer

Josef Merten

Frieder Heydenreich

Peter R Muller

Peter Kafer

John R Sanderson

Ludwig Bottenbruch

Ulrich R Grigo

Claus H Wulff

Horst Peters

Volker Serini

Klaus Kircher

Helmut Steinberger

Josef Buekers

Mark W Witman

Wolfgang Grape

Gert Humme

Gerard E Reinert

Russell P Carter, Jr

Ralf Lange

Klaus Geisler

Hans-Georg Gehrke

Klaus-Peter Arlt

Gunter Jacobs

Heinrich Bonten

George R Kriek

Sivara Krishnai

Thermoplastic moulding compositions based on polysiloxane/polycarbonate

Thermoplastic molding compositions comprising a polycarbonate resin, a thermoplastic polyester and an impact modifier were found to maintain their impact performance, especially at low temperatures, while exhibiting a reduced melt viscosity upon the blending therewith a relatively small amount of a certain ester plasticizer.

Thermoplastic compositions having improved mechanical properties

The subject of the present invention is a process for the preparation of polydiorganosiloxanes containing hydroxyaryloxy terminal groups by reacting polydiorganosiloxanes containing bis-acyloxy terminal groups with diphenols in a molar ratio of 1:2 to 1:20.

Process for the preparation of polydiorganosiloxanes containing

The present invention is directed to thermoplastic molding compositions comprising a blend of poly(alkylene terephthalate) and polycarbonate resins characterized in that the weight ratio between said resins is about 1:1 to 4:1 and in that a graft modified polybutadiene rubber is added thereto, said compositions exhibiting an improved level of impact strength.

Thermoplastic molding compositions

A thermoplastic blend comprising a C.sub.1 -C.sub.4 (alkylene terephthalate), a polycarbonate resin and a butadiene or an acrylate based graft copolymer was found to be amenable without pre-extrusion drying, to thermoplastic processing upon the admixing therewith an additive amount of a polymeric modifier.

Thermoplastic resinous blend and a method for its preparation

The present invention relates to polycarbonate molding compositions containing additives of alkali or alkaline earth metal salts, tetrahalogenophthalimides and optional glass fibers, characterized in that they contain additive amounts of bromine.

Polycarbonate molding compositions having improved flame retardance

The invention relates to a thermoplastic molding composition comprising a blend of a thermoplastic polyester and a reinforcing amount of a reinforcing agent. An improvement in the impact performance of the composition is disclosed to result upon the incorporation therewith of a blocked (end-capped) polyisocyanate prepolymer.

Thermoplastic polyester molding composition having an improved impact

The present invention is directed to molding compositions comprising aromatic, thermoplastic polycarbonate resins at least some molecular chains thereof are characterized in that their terminal groups contain conjugated double bonds. The invention is further directed to a process for the preparation of said compositions.

Polycarbonates having terminal groups which contain conjugated double

Moulding compositions of polycarbonate, polyalkylene terephthalate and, optionally, polymer having a glass transition temperature below -20.degree. C. may be processed to form particularly low-distortion mouldings when the polycarbonate consists at least partly of o,o,o',o'-tetramethyl-besphenol-polycarbonate.

Thermoplastic moulding compositions based on polycarbonate, polyalkylene

The instant invention relates to a process for the preparation of linear aromatic polycarbonate resins by the known two-phase interfacial process and is directed to the use of perfluoroalkyl sulfonamides as chain stoppers in said process and is further directed to the polycarbonate resins obtainable by the process which resins are suitable in the preparation of thermoplastic molding compositions.

Process for the preparation of polycarbonates having

A mixture comprising 1. from 70 to 99% by weight of a predominantly aromatic polycarbonate; and 2. from 30 to 1% by weight of a polyolefin graft polymer of (a) 70 to 95% by weight of a graft base consisting of a homopolymer of aliphatic and/or aromatic monoolefins or of a copolymer of these olefins, and up to 50% by weight of other monoolefinically unsaturated, radially polymerizable compounds and/or up to 5% by weight of diolefins, and (b) 5 to 30% by weight of at least one graft-polymerizable vinyl compound, the olefin graft polymers having been obtained by contacting a melt of the graft base (a) with oxygen or an oxygen-containing gas for at most 10 min. with intensive mixing under a pressure of from 1 to 150 bars and at a temperature of from 80.degree. C. to 300.degree. C., adding the vinyl compounds (b) to be grafted on immediately afterwards with intensive mixing in the absence of oxygen or oxygen-containing gas and removing the residual monomers after the graft polymerization reaction.

Polycarbonate-polyolefin moulding compositions

Moulding compositions of aromatic polycarbonate, polyalkylene terephthalate and a certain graft copolymer which may be processed into mouldings characterized by high multiaxial impact strength, exhibit an increased Vicat B-temperature if they contain a low amount of an ethylene homo- or copolymer.

Thermoplastic moulding compositions of polycarbonate, polyalkylene

The present invention relates to the preparation of aromatic polycarbonates by the known two-phase interface process, from diphenols characterized in that aromatic sulfonanilides are used as chain terminators in amounts of about 2 mol % to 20 mol %, preferably in amounts of about 2.5 mol % to 10 mol %, relative to mols of diphenols employed. In addition, the present invention relates to the aromatic polycarbonates obtainable by the process according to the invention. The products of this invention have been found to have better self extinguishing property compared to polycarbonates without sulfonamide end groups.

Process for the preparation of polycarbonates having sulfonanilide

The present invention relates to mixtures comprising

Mixture of a thermoplastic polymer of an alkyl methacrylate and a graft

Growing community of inventors

Krefeld, Germany

Dieter Neuray