Printing plate precursors
US4942111A · kind A · utility
25Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1990 |
| Grant date | Jul 17, 1990 |
| Priority date | — |
| Expiry date | Feb 22, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/162
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A printing plate precursor comprises a substrate coated with a radiation sensitive composition overcoated with a barrier layer to prevent oxygen inhibiting photopolymerization of the composition. The barrier layer comprises a polymer and an amphoteric compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.