Novel alpha-aminoacetophenones as photoinitiators
US5077402A · kind A · utility
50Cited by
4References
8Claims
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Key dates
| Filing date | Mar 28, 1990 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Mar 28, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/031
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula I, II, III and IIIa ##STR1## in which Ar.sup.1 is an unsubstituted or substituted aromatic radical and at least one of the radicals R.sup.1 and R.sup.2 is an alkenyl, cycloalkenyl or arylmethyl group, are effective photoinitiators for photopolymerization of unsaturated compounds. They are particularly suitable for photocuring of pigmented systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.