Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1993-04-05
1994-10-18
Robinson, Ellis P.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
428 369, 428421, 428492, 428522, 138137, 138140, 138DIG3, B29D 900
Patent
active
053566815
ABSTRACT:
A multi-layer rubber hose in which a fluorinated rubber (FKM) layer and a nitrile rubber (NBR) layer adjacent thereto have been vulcanization-adhered to each other. The FKM layer is formed from the vulcanizate of an FKM compound containing a ternary FKM as a polymer component. The vulcanization system is an organic polyol system and a quaternary ammonium salt, and the vulcanization induction time (T.sub.10) satisfies the following equation, 4 minutes .ltoreq.T.sub.10 +determined vulcanization temperature -170.degree. C.) minutes/10.degree. C..ltoreq.7 minutes. The NBR layer is formed from the vulcanizate of the NBR compound, and the NBR comound is a stock rubber into which a functional group having an active hydrogen has been introduced. The vulcanization system is an oragnic peroxide system. The multi-layer rubber hose of the presnt invention is suitable as a fuel hose for cars and has a high resistance to gasohol.
REFERENCES:
patent: 4606952 (1986-08-01), Sugimoto et al.
patent: 4806351 (1989-02-01), Sugimoto et al.
patent: 4975139 (1990-12-01), Sugimoto
patent: 4988548 (1991-01-01), Takemura et al.
English Translation of JISK 6301-1975, pp. 20-22.
Ichikawa Masayoshi
Okita Tomoaki
Robinson Ellis P.
Toyoda Gosei Co,., Ltd.
Williamson Michael A.
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