Rubber laminates of fluororubber and nitrile rubber
US4828923A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1988 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Apr 6, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31544
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a process for the preparation of rubber laminates. According to this process, a rubber laminate having a high bonding strength can be obtained by contacting an uncured composition A comprising a fluororubber and a metal oxide with an uncured composition B comprising a nitrile group-containing polymer rubber and a phosphonium salt represented by the following general formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each stand for a hydrocarbon residue having 1 to 20 carbon atoms, which may be substituted, with the proviso that up to three of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be a primary, secondary or tertiary amino group or a fluoroalkyl group, and R.sub.5 stands for a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, and curing the uncured compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.