Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1978-08-03
1979-05-15
Levin, Stanford M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
260 23AR, 526298, 526320, 526323, C08F 834
Patent
active
041549147
ABSTRACT:
A process for producing acrylic rubber vulcanizable with curing agents in e thiuram series is provided. The process includes the copolymerization of an acrylic ester or esters with a malonic acid derivative having an active methylene group of the formula ##STR1## wherein R.sub.1 represents vinyl, allyl or methallyl, and X represents cyano or COOR.sub.2 in which R.sub.2 represents methyl, ethyl or propyl. The acrylic rubber thus produced shows better physical properties than the conventional one.
REFERENCES:
patent: 843401 (1907-02-01), Kronstein
patent: 3092611 (1963-06-01), Lynn
Levin Stanford M.
Toyo Seal Kogyo Kabushiki Kaisha (Toyo Seal Industries Co., Ltd.
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