Polyblends of thermoplastic copolyesters and styrenic/unsaturate

Details Polyblends of thermoplastic copolyesters and styrenic/unsaturate Polyblends of thermoplastic copolyesters and styrenic/unsaturate

1989-12-20

1991-01-15

Short, Patricia

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

Synthetic resins

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

525176, C08L 6702

Patent

active

049855018

ABSTRACT:
A molding composition prepared from a blend of: (a) a copolyester of a dicarboxylic acid moiety, such as terephthalic acid or dimethyl terephthalate, and a dihydric alcohol moiety, such as ethylene glycol in combination with diethylene glycol or 1,4-cyclohexanedimethanol and (b) a copolymer prepared from a styrenic monomer, an unsaturated dicarboxylic acid anhydride, and optionally an alkyl (meth)acrylic ester wherein the alkyl group contains 1 to 3 carbon atoms, wherein articles molded from such compositions have improved clarity and toughness.

REFERENCES:
patent: 3564077 (1971-02-01), Brinkmann et al.
patent: 3578730 (1971-05-01), Herwig et al.
patent: 4148956 (1979-04-01), Breitenfeller et al.
patent: 4305869 (1981-12-01), Lee
patent: 4397986 (1983-08-01), Hornbaker
patent: 4582876 (1986-04-01), Weemes

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