Methacrylic resin cast plate having transparency and impact resi

Details Methacrylic resin cast plate having transparency and impact resi Methacrylic resin cast plate having transparency and impact resi

1991-04-03

1992-12-08

Seidleck, James J.

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

Synthetic resins

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

525 83, 525285, 525286, 525296, 525301, 525304, 525312, C08F27902, C08F26506

Patent

active

051699036

ABSTRACT:
Disclosed is a methacrylic resin cast plate which is comprised of 100 parts by weight of [I] polymethyl methacrylate or a methyl methacrylate copolymer containing at least 90% by weight of methyl methacrylate units and, dispersed therein, a graft copolymer [IV] obtained by graft-polymerizing a hard resin component [III] containing at least 90% by weight of methyl methacrylate units onto a crosslinked rubbery copolymer [II] containing at least 45% by weight of butyl acrylate units and having an average particle diameter of 0.1 to 1 .mu.m, the amount of the graft copolymer [IV] being 2 to 30 parts by weight as the amount of the crosslinked rubbery copolymer.

REFERENCES:
patent: 3968305 (1976-07-01), Oshima
patent: 4877687 (1989-10-01), Azegami
Translation of Japan 61-53350, Mar. 1986.
Translation of Japan 62-01747, Jan. 1987.

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