Title:
ELECTRO-RHEOLOGICAL FLUID COMPOSITION AND CYLINDER DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/015031
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an electro-rheological fluid composition and a cylinder device that can deliver a significant ER effect while suppressing the electrical current density. This electro-rheological fluid composition (8) is characterized: by including a fluid (32) and ion-conductive particles (28); in that the ion-conductive particles (28) each have a first layer (29) that constitutes the surface of the particle (28) and a second layer (30) that constitutes the inner portion of the particle (28) more than the first layer (29) does; and in that the ion conductivity of the first layer (29) is lower than the ion conductivity of the second layer (30).
Inventors:
ISHII SATOSHI (JP)
Application Number:
PCT/JP2020/027192
Publication Date:
January 28, 2021
Filing Date:
July 13, 2020
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
C10M171/06; C09K3/00; C10M125/26; C10M145/14; C10M145/20; C10M145/30; C10M149/20; C10M159/12; F16F9/46; F16F9/53; C10N10/02; C10N30/00; C10N40/14
Domestic Patent References:
| WO2018199126A1 | 2018-11-01 | |||
| WO2018025456A1 | 2018-02-08 |
Foreign References:
| JPH03119098A | 1991-05-21 | |||
| JPH02235994A | 1990-09-18 | |||
| JPH04117496A | 1992-04-17 | |||
| JP2001026793A | 2001-01-30 | |||
| JPH04255795A | 1992-09-10 | |||
| JPH0457892A | 1992-02-25 | |||
| JP2015511643A | 2015-04-20 | |||
| JPH04211499A | 1992-08-03 | |||
| JP2019116930A | 2019-07-18 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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