Hose

Details Hose Hose

1988-06-15

1989-12-19

Bryant, III, James E.

Pipes and tubular conduits

Flexible

Braided, interlaced, knitted or woven

138125, 138137, 138177, 138DIG7, F16L 1104

Patent

active

048876470

ABSTRACT:
In rubber hoses for conveying fuels, the inner tube rubber layer coming into contact with fuels generally comprises two sublayers, namely the inside fluororubber layer coming into direct contact with fuels and the outside layer of an NBR and the like. The fluororubber layer is undesirably subject to degradation due to amine type additives contained in fuels and is poor in adhesion to the outside layer. In accordance with the invention, the contents of vinylidene fluoride, one of the fluororubber constituents, is reduced to 10-50 mole percent and at the same time a monomer capable of causing crosslinking of the fluororubber in the presence of a peroxide is newly added as a component of the fluororubber composition in a specified amount. The results are prevention of the degradation due to amine type additives and improved adhesion to the outside layer.

REFERENCES:
patent: Re32230 (1986-08-01), Satoh et al.
patent: 3899807 (1975-08-01), Sovish et al.
patent: 4169754 (1979-10-01), Perrotta
patent: 4361678 (1982-11-01), Tatemoto et al.
patent: 4403796 (1983-09-01), Ledbetter et al.
patent: 4457799 (1984-07-01), Dunn

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