Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1985-11-06
1987-05-05
Lieberman, Allan M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
525 83, 525 85, C08L 1300, C08L 5104
Patent
active
046633820
ABSTRACT:
Disclosed is a non-rigid vinyl chloride polymer composition comprising 100 weight parts of a vinyl chloride polymer resin, 5-50 weight parts of a graft copolymer modifier and 10-300 weight parts of a plasticizer. The graft copolymer modifier is obtained by graft-polymerizing 25-150 weight parts of an alkyl ester of methacrylic acid having 1 to 4 carbon atoms in the alkyl group or a monomer mixture composed of at least more than 50% by weight of said alkyl ester of methacrylic acid onto 100 weight parts of an acrylic elastomer having a swelling degree of 5 to 25 so that the grafting ratio is not larger than 50%. The acrylic elastomer is obtained by polymerizing a mixture comprising an alkyl ester of acrylic acid having 2 to 10 carbon atoms in the alkyl group or a monomer mixture composed of at least 50% by weight of said alkyl ester of acrylic acid, and a polyfunctional crosslinking agent. The non-rigid vinyl chloride polymer composition has excellent weatherability and impact resistance, and exhibits a good molding processability.
REFERENCES:
patent: 3994991 (1976-11-01), Okami et al.
patent: 4014842 (1977-03-01), Kosugi et al.
patent: 4220734 (1980-09-01), Kosugi et al.
patent: 4229549 (1980-10-01), Usami et al.
Kishida Kazuo
Kitai Kiyokazu
Matsumoto Tsuruyoshi
Ueda Kazuo
Lieberman Allan M.
Mitsubishi Rayon Company Ltd.
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