Patent · US Expired

Rheological fluid

US6280658A · kind A · utility

16Cited by
8References
12Claims
0Family size

Assignees

Inventors

Key dates

Filing dateFeb 22, 1999
Grant dateAug 28, 2001
Priority date
Expiry dateFeb 22, 2019

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10M171/001
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A rheological fluid of a bright color which has excellent light resistance and weather resistance, is stable even when used in a high-temperature environment, can be stored over long, and mightily and precisely actuates in response to an electric field or a magnetic field or to both. The rheological fluid comprises a medium in which a film-coated powder comprising a base particle having thereon a coating layer(s) is dispersed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.