Ethylenically-unsaturated dextrin composition for preparing a durable hydrophilic photopolymer
US4511646A · kind A · utility
23Cited by
10References
11Claims
0Family size
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Key dates
| Filing date | Mar 3, 1983 |
| Grant date | Apr 16, 1985 |
| Priority date | — |
| Expiry date | Mar 3, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/117
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A water-soluble photopolymerizable composition which is suitable for forming the hydrophilic layer in a positive acting water-developable lithographic printing plate. The photopolymerizable composition comprises a mixture of: PA0 (a) an ethylenically-unsaturated dextrin oligomer, PA0 (b) at least one hydroxyfunctional acrylamide monomer, PA0 (c) inorganic solid particulate material, and PA0 (d) a photoinitiation system. Wetting agents and pH modifiers can also be added to the composition. The photopolymer formed from the composition is water-insoluble.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.