Flame retardant polycyanate ester blend
US4931545A · kind A · utility
15Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 1989 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | May 3, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/0346
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Flame retardant thermoset compositions having excellent water absorption resistance, caustic resistance, and low dielectric constants are made from blends of the dicyanate ester of 4,4'-(hexafluoroisopropylidene) bisphenol and a different polycyanate ester of a polyhydric phenol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.