Process of using a flexible, fast processing photopolymerizable composition
US4610951A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1985 |
| Grant date | Sep 9, 1986 |
| Priority date | — |
| Expiry date | Jul 25, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/027
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photopolymerizable composition comprised of an addition polymerizable material, a photoinitiator, a thermal addition polymerization inhibitor and a polymeric binding agent. The addition polymerizable material is comprised of a defined monoethylenically unsaturated acrylate and one or more non-gaseous compounds having at least two terminal ethylenic groups. The photopolymerizable composition displays superior flexibility and develops and strips more efficiently when compared to a like composition but in the absence of the acrylate. The photopolymerizable composition may be in the form of sheet or roll on a film support which can be laminated to a substrate and can be used in the preparation of printed circuit boards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.