Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1992-10-28
1994-03-01
Lipman, Bernard
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521 98, 523215, 523217, 523223, 524 65, 524 79, 524424, 524445, 524493, 524 71, 524405, 524430, 524431, 524432, 524433, 524437, 524428, 524443, 524588, 524571, C08K 1302
Patent
active
052908216
ABSTRACT:
An electro-responsive elastomeric material comprising (A) an electrically insulating polymer having a specific modulus of elasticity and (B) a fine powder dispersed in the polymer which electrically polarizes under an electric field independent of water changes its viscoelasticity upon voltage application. The powder has a mean particle size of 0.5 to 500 .mu.m and is (1) a fine carbonaceous powder having a C/H atomic ratio of from 1.2 to 5, (2) composite particles having minute particulates of an insulating material dispersed in a matrix phase of a carbonaceous or carbide material, (3) composite particles having minute particulates of a carbonaceous or carbide material dispersed in a matrix phase of an insulating material, or (4) a fine composite powder of a stratum clay mineral having a two-dimensional stratum structure with a carbonaceous or carbide material incorporated between the strata.
REFERENCES:
patent: 4362569 (1982-12-01), Martin
patent: 4598105 (1986-07-01), Weber et al.
patent: 4684481 (1987-08-01), Jackson et al.
Fukuyama Yoshiki
Kurachi Yasuo
Maruyama Takayuki
Saito Tasuku
Sakurai Ryo
Bridgestone Corporation
Lipman Bernard
Nagumo Mark
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