Polymeric organometallic photoinitiators and the cationically crosslinkable polyorganosiloxane compositions which comprise them
US5665850A · kind A · utility
3Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1996 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | Nov 14, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Processes of preparing polymeric photoinitiators are disclosed. The polymers are prepared by either a hydrosilation reaction of a SiH containing siloxane or a ring opening reaction of an epoxy functional siloxane. The resulting polymeric photoinitiators are cationic polymers consisting of organometallic complex salts which are grafted onto a polyorganosiloxane backbone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.