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US 3,943,193 AGranted
Chloroprene rubber composition having high thermal aging resistance and oil resistance
AssigneeToyo Soda Manufacturing Co., Ltd.
InventorsToshio Miyagawa, Norio Inoue, Tadayuki Suenaga
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Abstract
A chloroprene rubber composition having a high resistance to thermal aging and a high oil resistance is prepared by admixing a chloroprene-methacrylate copolymer with chloroprene rubber and vulcanizing the mixture in the presence of quinone dioxime dibenzoate and a metal oxide.
Claims4
A thermal aging and oil resistant chloroprene rubber composition which comprises:
- a. a linear copolymer of chloroprene and a methacrylate selected from the group consisting of alkyl, allyl and aralkyl methacrylate having 1 to 20 carbon atoms, wherein said chloroprene annd said methacrylate are copolymerized in a ratio of from about 1 :
- 10 to about 10 :
- 1;
- and
- b. polychloroprene homopolymer, wherein the ratio of (a) to (b) is from about 5 :
- 95 to 85 :
- 15, which are vulcanized in the presence of
- c. a metal oxide;
- and
- d. quinone dioxime dibenzoate.
7 more elements
Dependencies are inferred from the claim text.