ELECTRO-RHEOLOGICAL FLUID AND CYLINDER DEVICE

To provide an electro-rheological fluid capable of achieving a good balance between high heat resistance and ER effect and a cylinder device.SOLUTION: An electro-rheological fluid (300) contains a fluid (30) and polyurethane particles (31) that contain metal ions. The polyurethane particles (31) are...

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Bibliographische Detailangaben
Hauptverfasser:	AMO MINA, ISHII SATOYUKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING CHEMISTRY ENGINEERING ELEMENTS AND UNITS FUELS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING LUBRICANTS LUBRICATING COMPOSITIONS MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING METALLURGY PEAT PETROLEUM, GAS OR COKE INDUSTRIES SHOCK-ABSORBERS SPRINGS TECHNICAL GASES CONTAINING CARBON MONOXIDE THERMAL INSULATION IN GENERAL USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION WEAPONS
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Beschreibung
Zusammenfassung:	To provide an electro-rheological fluid capable of achieving a good balance between high heat resistance and ER effect and a cylinder device.SOLUTION: An electro-rheological fluid (300) contains a fluid (30) and polyurethane particles (31) that contain metal ions. The polyurethane particles (31) are formed from a polyol and two or more isocyanates; and the hard segment ratio of the polyurethane particles (31) is from 13% to 34% inclusive.SELECTED DRAWING: Figure 1 【課題】高い耐熱性およびＥＲ効果を両立することができる電気粘性流体およびシリンダ装置を提供する。【解決手段】本発明の電気粘性流体（３００）は、流体（３０）と、金属イオンを含むポリウレタン粒子（３１）と、を含み、ポリウレタン粒子（３１）は、ポリオールおよび２種類以上のイソシアネートから構成され、ポリウレタン粒子（３１）のハードセグメント比率が１３％以上３４％以下であることを特徴とする。【選択図】図１