UV curable compositions for making improved solder mask coatings
US4753860A · kind A · utility
8Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1985 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Jun 20, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/287
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition including a mixture of UV curable urethane acrylate and a urethane diacrylate compounds provides an aqueous alkaline developable, flexible solder mask having excellent electrical insulation resistance under hydrolytic testing conditions at elevated temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.