High impact, low warp blend of poly-alkylene terephthalate! resin - an organo:polysiloxane-polycarbonate block copolymer and calcium carbonate filler

An improved high impact, low warp polymer blend comprises a polyalkylene terephthalate resin, an organopolysiloxane-polycarbonate block copolymer and a CaCO3 filler. Pref. copolymers are of formula (where A is p-phenylene substd. by 4 E gps.; X is 1-1000 (2-100); n is 1-100 (5-40); a is 1, 1-100; m...

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Bibliographic Details
Main Authors DE MEJO,LAWRENCE PAUL, CHARLES BOPP,RICHARD
Format Patent
LanguageEnglish
German
Published 13.11.1980
Edition3
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Summary:An improved high impact, low warp polymer blend comprises a polyalkylene terephthalate resin, an organopolysiloxane-polycarbonate block copolymer and a CaCO3 filler. Pref. copolymers are of formula (where A is p-phenylene substd. by 4 E gps.; X is 1-1000 (2-100); n is 1-100 (5-40); a is 1, 1-100; m is 1; z is 1-1000 (5-12); each E is H, lower alkyl or halogen; R is H or opt. unsatd. (halo)alkyl; R1 is opt. unsatd. (halo)alkyl or cyanoalkyl), n and a are number averages. Blends are used as moulding materials.
Bibliography:Application Number: DE19792917858