Oxygen barrier layers for photopolymerizable elements
US4072527A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 3, 1976 |
| Grant date | Feb 7, 1978 |
| Priority date | — |
| Expiry date | Jun 3, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/0073
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Photopolymerizable elements are provided which comprise: (1) A support, (2) an addition polymerizable photosensitive layer, and (3) a solid, water-permeable, oxygen barrier protective layer, non-strippable as an unsupported film, said layer covering the entire photosensitive layer and being coated from an aqueous solution of a water-soluble macromolecular organic polymer or copolymer, e.g., polyvinyl alcohol, having dispersed therein, finely divided solid particles of a water-insoluble polymer or copolymer selected from acrylic and alkacrylic polymers or copolymers and mixtures thereof, and copolymers of vinyl pyrrolidone and vinyl acetate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.