RUBBER COMPOSITION FOR HOSES, AND HOSE

摘要

Rubber composition for hoses, containing 80 parts by mass or more of an acrylonitrile butadiene rubber (NBR) in 100 parts by mass of the rubber component, while containing 1-4 parts by mass of a phenolic resin and 1-5 parts by mass of a thiuram compound represented by general formula (1) and serving as a vulcanization accelerator, respectively per 100 parts by mass of the rubber component. This rubber composition is capable of achieving good adhesion to a brass-plated wire and is capable of solving the problems of environmental loads; and this rubber composition is particularly suitable for use as an inner tube rubber for hydraulic pressure hoses.;;(In the formula, each R moiety represents an alkyl group having 6 or more carbons or an aryl group; and the R moieties may be different from each other, or two or more R moieties may be the same as each other.)

主权项

1. A rubber composition for hoses, characterized by comprising 100 parts by mass of a rubber component, of which at least 80 parts by mass is an acrylonitrile-butadiene rubber (NBR); from 1 to 4 parts by mass of a phenolic resin; and, as a vulcanization accelerator, from 1 to 5 parts by mass of a thiuram compound of general formula (1) below(wherein R is at each occurrence an alkyl group or aryl group of 6 or more carbons, each of which occurrences may be different or two or more of which may be the same).