Impact modified methyl methacrylate polymer

Details Impact modified methyl methacrylate polymer Impact modified methyl methacrylate polymer

1985-05-01

1986-07-01

Seccuro, Carman J.

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

Synthetic resins

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

525310, 525309, 525901, 525263, C08L 3312, C08L 5104, C08L 5302

Patent

active

045981230

ABSTRACT:
A clear, cast acrylic sheet of improved impact strength may be prepared by dispersing or dissolving 8-14% of an ABA block copolymer, (where A is styrene, B is a hydrogenated butadiene, containing a large 1-2 butadiene fraction) in a methyl methacrylate casting mixture which contains 0.1- 20% styrene, and polymerizing in sheet form by heating with free-radical initiators.

REFERENCES:
patent: 4007311 (1977-02-01), Harlan
patent: 4080406 (1978-03-01), Kelsey
patent: 4212958 (1980-07-01), Falk
patent: 4287317 (1981-09-01), Kitagawa et al.
Manson et al.--Polymer Blends & Composites, "Oxidation and Weathering of Polyblends", pp. 117-119, 1976.

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