Polymer composite, rubber composition, and tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorKensuke Washizu
Life of this patent
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Abstract
Provided are a polymer composite, a rubber composition, and a tire which can reversibly vary tire performance in response to changes in temperature. The present disclosure relates to a polymer composite formed from at least one conjugated diene polymer having a weight average molecular weight of 100,000 or more as determined by gel permeation chromatography, the polymer composite reversibly satisfying the following relationship (II) with respect to the temperature dependence of contact angles of water at two temperatures differing by at least 10° C.: (II) Temperature dependence of contact angles: (Contact angle at lower temperature)/(Contact angle at higher temperature)×100≤90.
Claims22
A polymer composite, formed from at least one conjugated diene polymer having a weight average molecular weight of 100,000 or more as determined by gel permeation chromatography,
- the polymer composite reversibly satisfying the following relationship (II) with respect to a temperature dependence of contact angles of water at two temperatures differing by at least 10° C.:
- Temperature dependence of contact angles:
- (Contact angle at lower temperature)/(Contact angle at higher temperature)×100≤90, and (II)
- the polymer composite containing a backbone including a temperature-responsive polymer unit.
A rubber composition, reversibly satisfying the following relationship (I) with respect to a temperature dependence of contact angles of water at two temperatures differing by at least 10° C.:
- Temperature dependence of contact angles:
- (Contact angle at lower temperature)/(Contact angle at higher temperature)×100≤90, (I)
- wherein the rubber composition comprises a polymer composite formed from at least one conjugated diene polymer having a weight average molecular weight of 100,000 or more as determined by gel permeation chromatography, and
- the polymer composite contains a backbone including a temperature-responsive polymer unit.
Dependencies are inferred from the claim text.