Photo-polymerizable material for the preparation of stable polymeric images and process for making them by photopolymerization in a matrix
US4043819A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 18, 1976 |
| Grant date | Aug 23, 1977 |
| Priority date | — |
| Expiry date | Nov 18, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/126
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Photopolymerizable material for the preparation of stable polymeric images, is provided which is characterized in that it contains, on a carrier, at least one layer composed of PA1 1. ethylenically unsaturated monomers which are soluble in water or water-alcohol mixtures and which contain one or more terminal double bonds and at least one polar atom grouping with a lone electron pair, PA1 2. a photoinitiator which forms together with an electron donor a photo-redox pair, especially a diazine compound which forms a photo-redox pair with the ethylenically unsaturated monomer (1) or the binder (3a), or with both of them, PA1 3. as a matrix for the monomer (1), a swellable reaction product of at least one PA2 A. macromolecular binder which is soluble in water or water-alcohol mixtures and which has at least one polar atom grouping containing a lone electron pair, with PA2 B. a hardener, the hardener being different from the monomers of the component (1), and optionally PA1 4. a chemically inert macromolecular compound which does not react with the binder (3a) or the hardener (3b). The polymerizable material is useful for recording information, in particular for the preparation of stabl…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.