Impact modification of polyimides

Details Impact modification of polyimides Impact modification of polyimides

1990-12-11

1993-04-06

Dean, Jr., Ralph H.

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

Synthetic resins

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

525 63, 525426, 525431, C08L 5108

Patent

active

052004651

ABSTRACT:
The impact resistance of polyimides is improved by the addition of impact modifiers comprising, as a first stage, an elastomeric polydiorganosiloxane optionally polymerized simultaneously with but separately from one or more vinyl monomers, and as at least one grafted subsequent stage a polymer or copolymer of acrylonitrile, methacrylonitrile, a vinyl aromatic compound, (meth)acrylic acid, alkyl (meth)acrylate or (meth)acrylamide monomer.

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Graiver et al., Rubber Chemistry & Technology, 56, 918-926 (1983).

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