Photopolymerizable compositions
US5344747A · kind A · utility
2Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1992 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | Apr 20, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/0793
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A photopolymerizable composition composed principally of an acrylic linear copolymer, an ethylenically-unsaturated compound and a photoinitiator and adapted to fabricate printed circuit boards. The ethylenically-unsaturated compound contains a specific acrylic ester. The photopolymerizable composition can be developed with an aqueous mild alkaline solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.