Process for making a foamed polymer
US5700844A · kind A · utility
156Cited by
15References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1996 |
| Grant date | Dec 23, 1997 |
| Priority date | — |
| Expiry date | Apr 9, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/0373
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a process for making a foamed polymer. The process involves (a) dispersing thermally degradable solid particles in polymer precursor; (b) crosslinking the polymer precursor to form a rigid, crosslinked polymer without degrading the particles; and (c) heating the polymer to degrade the particles and form the polymer foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.