Printed circuit board with increased arc track resistance
US4174531A · kind A · utility
3Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1977 |
| Grant date | Nov 13, 1979 |
| Priority date | — |
| Expiry date | Nov 14, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/1322
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention pertains to increasing the arc track resistance of printed circuit boards by applying an acrylic resin to the printed circuit board wherein the acrylic resin is a polymer having the recurring unit: ##STR1## wherein x of each unit is independently selected from integers of 0 to 15 and each R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 is independently selected from the group consisting of H, --CH.sub.3 and --C.sub.2 H.sub.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.