Photoinitiated reactions
US7183333B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2001 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Aug 3, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/038
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Photoinitiated reactions especially in photopolymer technology, as well as photoinitiated colour forming reactions are achievable by applying a reactive substrate selected from a polymerisable and/or crosslinkable composition and a colour changing substance to a support, activating a latent photoinitiator applied with the reactive substance and subsequently exposing the reactive substrate with the resulting photoinitiator therein to photoreaction conditions wherein actinic radiation causes the substrate to undergo polymerisation and/or crosslinking or colour change respectively, the substrate being locally modified in its constitution as a result of its exposure to actinic radiation at least one stage of the method, so that the resulting polymerised and/or crosslinked composition or colour changed substance corresponds in its distribution on the support to the locations of the modification of the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.