Electronically and thermally conducting compositions for actuators
US5762830A · kind A · utility
5Cited by
15References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1995 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Oct 23, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L91/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention discloses a thermally expandable composition for use in actuators. The composition contains about 10-50 volume percent hollow glass spheres in a wax or a polymer. The spheres contain a conducting coating affixed thereon. During use in an actuator, the composition is heated to melt the wax or polymer, when the density of the spheres substantially match the density of the melt, thereby substantially eliminating phase separation. The high thermal conductivity of the composition increases the speed of heat transfer out of the composition during the cooling cycles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.