Foamed polymer for use as dielectric material
US5776990A · kind A · utility
103Cited by
12References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1993 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Mar 11, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2201/046
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to an insulating foamed polymer having a pore size less than about 1000 .ANG. made from a copolymer comprising a matrix polymer and a thermally decomposable polymer by heating the copolymer above the decomposition temperature of the decomposable polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.