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US 2023/0159847 A1Published application
Electroviscous fluid and cylinder device
AssigneeHitachi Astemo, Ltd.
InventorsSatoshi ISHII, Hitomi TAKAHASHI
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Abstract
Provided are an electroviscous fluid exhibiting a high ER effect and having sufficient durability, and a cylinder device. An electroviscous fluid of the present invention includes a fluid and polyurethane particles containing metal ions. The polyurethane particles have a phase separation structure of a hard segment and a soft segment, and contain an additive increasing a urethane bond forming the hard segment.
Claims9
An electroviscous fluid comprising:
- a fluid;
- and
- polyurethane particles containing metal ions,
- wherein the polyurethane particles have a phase separation structure of a hard segment and a soft segment, and contain an additive increasing a urethane bond forming the hard segment.
1 more element
Dependencies are inferred from the claim text.