Polycarbonate-silicone block copolymer compositions

Details Polycarbonate-silicone block copolymer compositions Polycarbonate-silicone block copolymer compositions

1989-06-16

1991-02-19

Marquis, Melvyn I.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528 26, 528 41, C08F28302

Patent

active

049945327

ABSTRACT:
Carboxylic acid functionalized polydimethylsiloxane fluids react with polycarbonate in the melt to form polydimethylsiloxane/polycarbonate block copolymers. The resultant copolymers are transparent and show improved flow and thick section impact relative to the polycarbonate.

REFERENCES:
patent: 4393156 (1983-07-01), Miller
patent: 4393158 (1983-07-01), Miller

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