Homogeneous thermoset copolymers
US4806596A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1986 |
| Grant date | Feb 21, 1989 |
| Priority date | — |
| Expiry date | Jun 9, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/925
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Homogeneous thermoset copolymers which may be used in the preparation of laminates for circuitry boards will comprise a poly(vinyl benzyl ether) of a polyphenol and a polyalkadiene in which the alkadiene monomer will contain from 3 to about 8 carbon atoms. The polymers are prepared by admixing a solution of the poly(vinyl benzyl ether) of a polyphenol dissolved in an organic solvent with a solution of the polyalkadiene also dissolved in an organic solvent. The admixing is done at an elevated temperature to form the desired composite. The resulting copolymer will possess desirable characteristics such as high glass transition temperature and low dielectric constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.