Storage stable one-part organosiloxane compositions
US5082894A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1990 |
| Grant date | Jan 21, 1992 |
| Priority date | — |
| Expiry date | Mar 19, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The combination of (1) long term storage stability, (2) a relative short cure time at temperatures below about 150.degree. C. and (3) cohesive bonding of the cured elastomer to a variety of substrates is achieved in a one-part organosiloxane composition that cures by a platinum-catalyzed hydrosilylation when the composition includes an acetylenic alcohol containing at least eight carbon atoms as the catalyst inhibitor and, as the adhesion promoter, an alkoxysilane containing an epoxy group and a polyorganosiloxane containing an average of at least one silicon-bonded hydroxyl group and at least one silicon-bonded vinyl radical per molecule. The concentrations of catalyst and adhesion promoter are within specified limits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.