Thixotropic magnetorheological materials

Compositions – Magnetic – With wax – bitumen – resin – or gum

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252 6252, 252 6253, 252 6255, 252 6256, 252500, 252512, 252513, 252518, 252519, 252520, 252503, 252507, 252508, H01F 144

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056457529

ABSTRACT:
A magnetorheological material containing a carrier fluid, a particle component and a thixotropic additive to provide stability against particle settling. The thixotropic additive can be a hydrogen-bonding thixotropic agent, a polymer-modified metal oxide, or a mixture thereof. The utilization of a thixotropic additive creates a thixotropic network which is unusually effective at minimizing particle settling in a magnetorheological material.

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