Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1979-03-27
1981-02-03
Wong, Jr., Harry
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525349, 525351, 525354, 526320, 526327, C08F 800, C08F21812
Patent
active
042489857
ABSTRACT:
A sulfur-curable acrylic rubber composition is provided which comprises [I] 100 parts of an acrylic rubber resulting from the copolymerization in the presence of a radical initiator of (1) 30 to 89.5% by weight of at least one alkyl acrylate with the alkyl group containing 1 to 8 carbon atoms, (2) 0.5 to 10% by weight of at least one monomer of the general formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group, and R.sub.2 and R.sub.3, independently from each other, represent an alkyl group containing 1 to 3 carbon atoms, (3) 10 to 60% by weight of at least one alkoxyalkyl acrylate with the alkoxy group containing 1 to 4 carbon atoms and the alkylene group containing 1 to 4 carbon atoms, and 0 to 30% by weight of at least one of monovinyl and monovinylidene unsaturated compounds other than the said compounds; and [II] 1 to 5 parts by weight of a metal compound, and [III] 0.2 to 5 parts by weight, as sulfur, of at least one of sulfur and sulfur-containing organic compounds.
REFERENCES:
patent: 3201373 (1965-08-01), Kaizerman
patent: 3476722 (1969-11-01), Schlatzer
patent: 3476722 (1948-12-01), Rehberg et al.
patent: 3622547 (1971-11-01), Ermidis
patent: 4133793 (1979-01-01), Lewis et al.
Handa Kohichi
Ohishi Tetsu
Ueno Haruo
Nippon Zeon Co. Ltd.
Wong, Jr. Harry
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