Photopolymerization initiator and method of photopolymerization by use of said initiator
US4777191A · kind A · utility
17Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1987 |
| Grant date | Oct 11, 1988 |
| Priority date | — |
| Expiry date | Nov 5, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/50
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Photopolymerization initiators of the general formula: ##STR1## wherein R.sub.1 and R.sub.1 ' independently stand for a tertiary alkyl group or a tertiary aralkyl group and R.sub.2 and R.sub.2 ' independently stand for a hydrogen atom, a tertiary alkoxy group, or a tertiary aralkyloxy group are disclosed. They are useful for effecting polymerization of radically polymerizable unsaturated compounds. Tetra peroxy esters of benzophenone are preferred.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.