Photoinitiator composition including hindered amine stabilizer
US5973020A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1998 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Jan 6, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D183/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a photoinitiator composition that can be used to initiate polymerization upon exposure to radiation. The said composition includes both a composition which yields cations upon exposure to actinic radiation, such as an iodonium borate initiator and a stabilizing amino agent. The amino agent is a secondary or tertiary amine having the general formula (VIII), a sterically arranged cyclic amine having the general formula (IX), or an amine consisting of groups that have the general formulas (VIII) and (IX) and that are interconnected. ##STR1## The compositions are particularly useful when used in conjunction with polyorganosiloxane monomers and when exposed to ultraviolet radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.