Vulcanizable adhesive composition
AssigneeNok Corporation
InventorsKiyofumi Fukasawa, Tomohiro Kaise
Life of this patent
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Abstract
A vulcanizable adhesive composition, which comprises 100 parts by weight of phenolxylylene resin or phenolbiphenyl resin, 10 to 1,000 parts by weight of resol-type phenol resin, 0 to 1,000 parts by weight of novolak-type phenol resin, 10 to 1,000 parts by weight of unvulcanized nitrile rubber and 10 to 500 parts by weight of chlorinated polyethylene, is effectively applied to (hydrogenated) nitrile rubber with a nitrile content of 18 to 48%, and has a suppression effect on a decrease in the adhesiveness even if exposed to dip in various cryogenic liquids such as flon gas, polyalkylene glycol, water, etc. for a long time.
Claims8
A vulcanizable adhesive composition for use in providing vulcanization adhesion between a metal and nitrile rubber with a nitrile content of 18 to 48% or between a metal and a hydrogenated nitrile rubber with a nitrile content of 18 to 48%, said vulcanizable adhesive composition, comprising 100 parts by weight of methylol group-containing phenolxylylene resin as a polycondensation product between 1,4-bis(alkoxymethyl)benzene and phenol having at least one methylol group at the 2,4-positions or methylol group-containing phenolbiphenyl as a polycondensation product between 4,4′-bis(alkoxymethyl)bisphenyl and phenol having at least one methylol group at the 2,4-positions, 10 to 1,000 parts by weight of resol-type phenol resin, 0 to 1,000 parts by weight of novolak-type resin, 10 to 1,000 parts by weight of unvulcanized nitrile rubber and 10 to 500 parts by weight of chlorinated polyethylene.
Dependencies are inferred from the claim text.