专利名称：STUD TIRE
发明人：MAEJIMA, Keisuke,MIHARA, Satoshi申请号：EP15773461.7申请日：20150331公开号：EP3127716A4公开日：20171206
摘要：The present invention provides a studded tire in which the stud pin retentioncapacity is increased and the performance on snow and ice and the wet performance areenhanced beyond conventional levels. The studded tire of the present invention has studpins 20 embedded in a road contact surface of a tread portion 1; the rubber compositionforming the tread portion 1 containing a diene rubber containing at least one rubberselected from natural rubber, styrene-butadiene rubber, and butadiene rubber, from 5to 50 parts by weight of carbon black and from 5 to 70 parts by weight of silica per 100parts by weight of the diene rubber; a glass transition temperature of the diene rubberbeing not higher than -60°C; a nitrogen adsorption specific surface area of the carbonblack being from 50 to 120 m 2 /g; a CTAB specific surface area of the silica being from 80to 190 m 2 /g; a rubber hardness of the rubber composition being not greater than 60;and a product (SxA) of a stress S (MPa) at the time of 400% elongation and a bottomsurface area A (mm 2 ) of a flange portion 23 on a bottom side of the stud pins 20 beingnot less than 400 and not greater than 850.
申请人：The Yokohama Rubber Co., Ltd.
地址：36-11, Shimbashi 5-chome Minato-ku Tokyo 105-8685 JP
国籍：JP
代理机构：Grünecker Patent- und Rechtsanwälte PartG mbB
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