Hose for automotive fuel piping

Details Hose for automotive fuel piping Hose for automotive fuel piping

1995-10-12

1996-12-31

Brinson, Patrick

Pipes and tubular conduits

Flexible

Distinct layers

138125, 138126, 138141, F16L 1104

Patent

active

055884695

ABSTRACT:
A hose for automotive fuel piping has an inner layer formed of a molding of a terpolymeric fluoro-resin prepared from tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride, so that it can be provided with suitable flexibility. Both the vulcanization composition of an epichlorohydrin rubber or NBR/PVC blend to be disposed outside the inner layer and the vulcanization composition of an NBR rubber or fluororubber to be disposed inside the inner layer contain 1,8-diazablcylco(5.4.0)undecene-7 salts and organophosphonium salts. A satisfactory bonding strength can be attained merely by the vulcanlzation bonding without any surface treatment such as corona discharge on the surface of the inner layer fluororesin.

REFERENCES:
patent: 4887647 (1989-12-01), Igarashi et al.
patent: 4942906 (1990-07-01), Igarashi et al.
patent: 4984604 (1991-01-01), Nishimura
patent: 4998564 (1991-03-01), Igarashi et al.
patent: 5093166 (1992-03-01), Nishimura
patent: 5284184 (1994-02-01), Noone et al.
patent: 5320888 (1994-06-01), Stevens
patent: 5348779 (1994-09-01), Igarashi

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