Photosensitive compositions and elements comprising dyed photosensitive polyesters
US6270945A · kind A · utility
0Cited by
23References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 1998 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | May 26, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/105
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Photosensitive polyesters having dye moieties incorporated into the polyester backbone are disclosed. The photosensitive polyesters contain an unsaturated photosensitive moiety comprising photopolymerizable --CH.dbd.CH--CO-- groups and dye moieties derived from dyes that are copolymerizable diols. Negative-working photosensitive elements, such as negative-working printing plates, can be prepared using these photosensitive polyesters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.