Recording materials containing photopolymerizable composition and component capable of causing a color reaction in microcapsules
US4837106A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1986 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Dec 29, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/127
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A recording material comprising (i) an addition polymerizable compound having at least one ethylenic unsaturated double bond, (ii) a photopolymerization initiator composition and (iii) at least one component capable of causing a color reaction, wherein components (i), (ii) and (iii) are contained in microcapsules; and wherein said photopolymerization initiator composition (ii) comprises the following components (a), (b) and (c), whereby the light sensitivity of the recording material is improved: PA0 (a) a photo-absorbent having a molecular extinction coefficient of 10.sup.3 or more at a maximum absorption wavelength; PA0 (b) a hexaaryl-biimidazole; and PA0 (c) a heterocyclic mercapto compound of general formula (I): ##STR1## where Z is a non-metallic atomic group for formation of a nitrogen-containing heterocyclic nucleus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.