Photosensitive resin composition for flexographic printing plates
US4045231A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1976 |
| Grant date | Aug 30, 1977 |
| Priority date | — |
| Expiry date | Feb 18, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/118
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photosensitive resin composition for flexographic printing plates comprising styrene-butadiene block copolymer containing 35 - 50% by weight of styrene, at least one liquid prepolymer having a molecular weight of 1,000 - 5,000 selected from the group consisting of polybutadiene and butadiene-styrene copolymer, at least one photopolymerizable monomer containing at least one vinyl group, such as tetraethyleneglycol diacrylate, a photopolymerization initiator such as benzophenone, and a thermopolymerization inhibitor optionally added. This photosensitive resin composition affords relief images suitable for use in flexographic printing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.