Radiation activated hydrosilation reaction
US5145886A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1990 |
| Grant date | Sep 8, 1992 |
| Priority date | — |
| Expiry date | Oct 22, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/70
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process for the actinic radiation-activated addition reaction of a compound containing silicon-bonded hydrogen with a compound containing aliphatic unsaturation, said addition being referred to as hydrosilation, comprising using, as a platinum hydrosilation catalyst, a complex represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 independently represent hydrogen, an alkyl group, or an aryl group, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 independently represent an alkyl group, an aryl group, or an alkoxy group. The invention also includes novel compositions, capable of undergoing hydrosilation, containing the platinum complexes disclosed herein. An important application of the process and compositions of the invention is as a visible light curable impression material for dental applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.