Printing plate precursors
US4999271A · kind A · utility
7Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1989 |
| Grant date | Mar 12, 1991 |
| Priority date | — |
| Expiry date | Jan 17, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/027
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A printing plate precursor comprises a substrate coated with a radiation sensitive composition comprising a photoinitiator and a photopolymerizable urethane acrylate or methacrylate. The urethane acrylate or methacrylate is produced by partial acrylation or methacrylation of a tetrafunctional polyol and the remaining hydroxy groups of the polyol are reacted with a di or polyisocyanate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.