Carboxyl modified olefinic copolymer compositions

Details Carboxyl modified olefinic copolymer compositions Carboxyl modified olefinic copolymer compositions

1988-05-19

1989-12-19

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...

525301, 526272, 52631825, 5263186, 562590, 562595, 562598, C08F25504, C08F25506, C08F25502

Patent

active

048883930

ABSTRACT:
The invention relates to a novel low profile additive (LPA) for uncured polyester resins and the resultant molding compositions. The low profile additive is the reaction product of an ethylene/alphaolefin copolymer with a carboxylic acid or anhydride, to thereby form a non-thermoplastic carboxyl modified polyolefin. The novel LPA is a remarkably effective dimensional stabilizer and has displayed the ability to achieve net expansion in a cured polyester resin molding composition.

REFERENCES:
patent: 3819592 (1979-06-01), Visser
patent: 3896094 (1975-07-01), Visser
patent: 3896096 (1975-07-01), Visser
patent: 4071581 (1978-01-01), Yokoyama
patent: 4161452 (1974-07-01), Stanbaugh
patent: 4358564 (1982-11-01), Ames

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