Polymeric materials to self-regulate the level of polar activators in electrorheological fluids
US5843331A · kind A · utility
6Cited by
15References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1995 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Nov 13, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M171/001
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Electrorheological systems of improved temperature range are obtained by including within the system a solid polymer insoluble in a low molecular weight activating material and in the hydrophobic medium of the fluid. The polymer contains hydrophilic functionality, and in the polymer a portion of the low molecular weight polar activating material is sorbed in an amount which reversibly increases with increasing temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.