Presensitized lithographic plate comprising support and hydrophilic image-recording layer
US7462437B2 · kind B2 · utility
3Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2005 |
| Grant date | Dec 9, 2008 |
| Priority date | — |
| Expiry date | Aug 30, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A presensitized lithographic plate comprises a support and a hydrophilic image-recording layer. The hydrophilic image-recording layer contains a hydrophilic polymer and an agent capable of converting hydrophilic to hydrophobic when the agent is heated. The hydrophilic polymer comprises a main chain and branched chains. Each of the branched chain comprises a hydrophilic chain having a molecular weight in the range of 200 to 1,000,000. A hydrophilic substrate and a lithographic printing process are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.