Heat conductive BN filler and electrically insulating/heat dissipating sheet
US6054520A · kind A · utility
21Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1998 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Aug 3, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/382
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A heat conductive BN filler having a cohesive factor of 3-50% is provided. An electrically insulating/heat dissipating sheet is obtained by mixing the BN filler with an organopolysiloxane and a crosslinking agent, shaping the resulting silicone rubber composition into a sheet form, followed by vulcanization. Without special orienting means, the BN particles are oriented in the sheeting step such that their a-axis is perpendicular to the sheet surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.