N-Alkylindolylidene and N-alkylbenzo-thiazolylidene alkanones as sensitizers for photopolymer compositions
US4454218A · kind A · utility
8Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1982 |
| Grant date | Jun 12, 1984 |
| Priority date | — |
| Expiry date | Sep 13, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/127
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Photopolymerizable compositions comprising (a) at least one ethylenically unsaturated compound, (b) at least one photoinitiator or photoinitiator system, (c) sensitizing amount of an N-alkylindolylidene or N-alkylbenzothiazolylidene alkanone as defined, and optionally (d) at least one organic polymeric binder. The compositions, in layer form are useful in printing plates, litho films, photoresists, solder mask and for making image proofs. The products show sensitization to visible light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.