Photopolymerizable composition
US5096799A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1990 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | Sep 21, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/031
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photopolymerizable composition capable of being developed with an aqueous alkali solution, comprising PA0 (1) a carboxyl group-containing polymer binder, PA0 (2) a photopolymerization initiator system containing a lophine dimer, and PA0 (3) a carboxy group-containing compound having the weight-average molecular weight of from more than 300 to about 1000 represented by formula (Ia) or (Ib): ##STR1## wherein Y.sub.1, Y.sub.2, Y.sub.3 , and Y.sub.4, which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group having from 1 to 12 carbon atoms, or an aryl group having from 6 to 10 carbon atoms, and with respect to formula (Ib), Y.sub.1 and Y.sub.4 may form an aromatic hydrocarbon ring having from 6 to 10 carbon atoms, and PA0 wherein PA1 R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 each represents a hydrogen atom, an alkyl group having from 1 to 12 carbon atoms, an aryl group having from 6 to 10 carbon atoms, a hydroxyalkyl group having from 1 to 12 carbon atoms, an alkyl group having from 1 to 6 carbon atoms substituted by an alkoxy group having from 1 to 12 carbon atoms or an aryloxy group having from 6 to 10 carbon atoms, A--O--R.sub.6 -- o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.