Polymer blend compositions containing a styrenic copolymer, an a

Details Polymer blend compositions containing a styrenic copolymer, an a Polymer blend compositions containing a styrenic copolymer, an a

1992-04-07

1993-10-05

Short, Patricia A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524507, 524509, 525 64, 525 66, 525 67, 525125, 525133, 525166, 525399, 525400, C08L 5104, C08L 5502

Patent

active

052506061

ABSTRACT:
The present invention pertains to thermoplastic polymer blends which comprise a monovinylidene aromatic copolymer, an acetal polymer and a thermoplastic polycarbonate resin or a polyester resin derived from the reaction of a dicarboxylic acid and a glycol, and which may also optionally contain an elastomeric material such as a thermoplastic polyurethane or an elastomeric copolyester. The resulting polymer blends have good processability and a beneficial combination of physical and chemical properties including thermal/dimensional stability, impact resistance, chemical resistance and environmental stress crack resistance. Said polymer blends are suitable for use in the preparation of a variety of molded utilitarian articles having good appearance and paintability.

REFERENCES:
patent: 3646159 (1972-02-01), Miller
patent: 4101504 (1978-07-01), Cooper
patent: 4179479 (1979-12-01), Carter
patent: 4743650 (1988-05-01), Boutni
patent: 4968756 (1990-11-01), Silvis

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