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1. (WO2018015982) MAGNETORHEOLOGICAL FLUID

Pub. No.:    WO/2018/015982    International Application No.:    PCT/JP2016/003414
Publication Date: Fri Jan 26 00:59:59 CET 2018 International Filing Date: Fri Jul 22 01:59:59 CEST 2016
IPC: H01F 1/28
Applicants: KURIMOTO, LTD.
株式会社栗本鐵工所
Inventors: UESHIMA, Yuya
上嶋 優矢
AKAIWA, Shuichi
赤岩 修一
Title: MAGNETORHEOLOGICAL FLUID
Abstract:
This magnetorheological fluid comprises a fine particle mixture and a dispersion medium in which the fine particle mixture is dispersed. The fine particle mixture contains first particles, second particles and third particles. The first particles are magnetic particles having an average particle diameter of from 1 μm to 30 μm (inclusive); the second particles are magnetic particles having an average particle diameter of from 100 nm to 300 nm (inclusive); and the third particles have an average particle diameter of from 10 nm to 50 nm (inclusive). The first particles account for 60% by mass or more but less than 99% by mass of the fine particle mixture; and the remainder of the fine particle mixture is composed of the second particles and the third particles.