Stable electro-rheological fluid having a high viscosity-increasing effect
US5266229A · kind A · utility
10Cited by
8References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 14, 1991 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Jun 14, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2010/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An electro-rheological fluid comprising an electrically insulating liquid as the dispersion medium, porous solid particles as the dispersed phase, a dispersant, and a polyhydric alcohol having a boiling point of not lower than 250.degree. C., a melting point of not higher than 15.degree. C. and a viscosity of not higher than 300 cp (as measured at 20.degree. C.), or comprising an electrically insulating liquid as the dispersion medium, porous solid particles as the dispersed phase, a polyhydric alcohol and/or water, and an ashless dispersant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.