Process for preparing waterless printing masters
US4218514A · kind A · utility
6Cited by
9References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1977 |
| Grant date | Aug 19, 1980 |
| Priority date | — |
| Expiry date | Mar 10, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Improved waterless lithographic printing masters are provided having minimum background ink reflection density. The master comprises a crosslinked block copolymer containing elastomeric, ink releasing siloxane blocks chemically linked to organic image accepting thermoplastic blocks, said copolymer having a molecular weight for the organic blocks sufficient to provide strength and a background ink reflection density of less than 0.02 and preferably less than 0.01.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.