Photosensitive compositions and lithographic printing plates containing binary acetal polymers
US5262270A · kind A · utility
18Cited by
6References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1991 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Jul 30, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/11
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Photosensitive compositions, useful in lithographic printing plates which can be developed with aqueous developing solutions, comprise a diazo resin and a binary acetal polymer which functions as a polymeric binder. The binary acetal polymers are comprised of recurring units which include two six-membered cyclic acetal groups, one of which is unsubstituted or substituted with an alkyl or hydroxyalkyl group and the other of which is substituted with an aromatic or heterocyclic moiety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.