Compositions for positive heat sensitive lithographic printing plates
US7202012B2 · kind B2 · utility
3Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2003 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Jun 5, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/53
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition for positive heat sensitive computer-to-plate (CTP) lithographic printing plates comprising a phenolic resin and an IR absorber characterized by the fact that the composition contains from 1 to 30% w/w of an organic oxygenated phosphorous compound chosen from the group of general formula (I):wherein R1, R2, and R3 are independently a C4–C8 alkyl group or an aryl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.