Methyl methacrylate polymer composition

Details Methyl methacrylate polymer composition Methyl methacrylate polymer composition

1975-02-10

1976-10-26

Tillman, Murray

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260885, C08L 5106, C08L 3102

Patent

active

039883922

ABSTRACT:
There is provided a polymer composition consisting essentially of 95-50 wt% of a methyl methacrylate homopolymer or copolymer component and 5-50 wt% of a cross-linked elastomer obtained by copolymerizing a mixture of stated amounts of (I) alkyl acrylate, (II) allyl acrylate and/or allyl methacrylate and (III) benzyl acrylate, the elastomer having a stated average particle size and a stated extent of cross-linking. The polymer composition comprises (1) a graft copolymer obtained by polymerizing methyl methacrylate or its mixture in the presence of the above elastomer; or (2) a blend of the above graft copolymer and a methyl methacrylate homopolymer or copolymer. The polymer composition provides shaped articles exhibiting good transparency over a broad range of temperature as well as good weather resistance and impact resistance.

REFERENCES:
patent: 3502604 (1970-03-01), Nakatsuka et al.
patent: 3632684 (1972-01-01), Tellier et al.
patent: 3678133 (1972-07-01), Ryan
patent: 3681475 (1972-08-01), Spilner
patent: 3821329 (1974-06-01), Gallagher
patent: 3830878 (1974-08-01), Kato et al.

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