Multi-layer rubber hose and method for producing the same
US5356681A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1993 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Apr 5, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.