Radiator hose

Details Radiator hose Radiator hose

C - Chemistry, Metallurgy

08

L

C08L 23/16 (2006.01) C08K 3/04 (2006.01) C08K 5/20 (2006.01) C08K 5/24 (2006.01) C08L 23/08 (2006.01) F16L 11/04 (2006.01)

Patent

CA 2108181

- 19 - ABSTRACT RADIATOR HOSE A radiator hose is made of a vulcanized rubber composition obtained by vulcanization of a rubber composition (R). The rubber composition (R) comprises the following (A) to (C) and has no zinc-containing compound: (A) an ethylene-a -olefin copolymer rubber and/or an ethylene-.alpha. -olefin-nonconjugated diene copolymer rubber, (B) at least one compound selected from the group consisting of N,N'-bis[3-(3,5-di-tert-butyl-4- hydroxyphenyl)propionyl]hydrazine, N,N'-dibenzal-(oxalyl- dihydrazide) and 2,2'-oxamid-bis-[ethyl-3-(3,5-di-tert- butyl-4-hydroxyphenyl)propionate], and (C) carbon black. The radiator hose is excellent in age-resisting property and has no ploblems caused by zinc.

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