Impact resistance modifier for polycarbonate

Details Impact resistance modifier for polycarbonate Impact resistance modifier for polycarbonate

1989-02-03

1991-03-05

Bleutge, John C.

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

Synthetic resins

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

525296, 525309, 525310, C08L 6900

Patent

active

049978837

ABSTRACT:
An impact resistance modifier for polycarbonate, which is a copolymer, comprising an elastomer and a methyl methacrylate copolymer, which are bonded covalently. The methyl methacrylate copolymer is one that is compatible by itself with polycarbonate resin due to specific comonomers. Such comonomers are aromatic (meth)acrylic esters and (meth)acrylamides, cycloalkyl(meth)acrylamides and cycloalkylmaleimides. Thermoplastic molding compounds comprising polycarbonate and the new impact resistance modifier exhibit excellent impact resistance.

REFERENCES:
patent: 4749749 (1988-06-01), Munzer
patent: 4906696 (1990-03-01), Fischer
patent: 4906699 (1990-03-01), Siol
Derwent Abstract of J62004711.

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