公开(公告)号：US4261403A

公开(公告)日：1981-04-14

申请号：US76536

申请日：1979-09-18

申请人： Isamu Imai ,  Junichi Ohtsuka

发明人： Isamu Imai ,  Junichi Ohtsuka

IPC分类号： C08L7/00 ,  B60C1/00 ,  B60C9/18 ,  B60C11/00 ,  C08L21/00

CPC分类号： B60C1/0016 ,  B60C9/18 ,  Y10T152/1081

摘要： Radial tires having improved irregular wear resistance, which are reinforced with a belt cord layer and a carcass cord layer, characterized in that as the embedding rubber of the belt cord layer, use is made of natural rubber, polyisoprene rubber or a blend rubber consisting of said rubber and less than 30 parts by weight of at least one of polybutadiene rubber and styrene-butadiene copolymer rubber and that for the ground contact area of the tread of tire, a rubber composition consisting of 100 parts by weight of styrene-butadiene copolymer rubber having a viscosity average molecular weight of not less than 2.times.10.sup.5 or a blend rubber consisting of more than 50 parts by weight of said copolymer rubber and at least one of natural rubber, polyisoprene rubber and polybutadiene rubber, 5-60 parts by weight of at least one of a liquid styrene-butadiene copolymer, a liquid polyisoprene polymer and a liquid polybutadiene polymer having a viscosity average molecular weight of 5.times.10.sup.3 -7.times.10.sup.4, and 40-90 parts by weight of a carbon black, is used.

摘要翻译： 具有改进的不均匀耐磨性的径向轮胎，其被带帘线层和胎体帘线层增强，其特征在于，作为带帘线层的包埋橡胶，使用天然橡胶，聚异戊二烯橡胶或由 所述橡胶和少于30重量份的聚丁二烯橡胶和苯乙烯 - 丁二烯共聚物橡胶中的至少一种和用于轮胎胎面的接地面积的橡胶组合物由100重量份的苯乙烯 - 丁二烯共聚物橡胶 粘均分子量不小于2×105或由大于50重量份所述共聚物橡胶和至少一种天然橡胶，聚异戊二烯橡胶和聚丁二烯橡胶组成的共混橡胶，至少为5-60重量份 液体苯乙烯 - 丁二烯共聚物，液体聚异戊二烯聚合物和粘均分子量为5×103-3×104的液体聚丁二烯聚合物之一， 使用90重量份的炭黑。

公开(公告)号：US5033524A

公开(公告)日：1991-07-23

申请号：US395125

申请日：1989-08-17

申请人： Junichi Ohtsuka

发明人： Junichi Ohtsuka

IPC分类号： B60C15/00 ,  B60C15/06

CPC分类号： B60C15/06 ,  Y10T152/10819 ,  Y10T152/10828 ,  Y10T152/10837

摘要： A tire for a large vehicle includes bead portions having bead cores around which a carcass ply layer is turned up from an inside to an outside of the tire. The tire includes a first elastomer protective layer A, a second elastomer protective layer B and a third elastomer protective layer C. These protective layers A, B and C have dynamic storage moduli E' A: 7-20.times.10.sup.7 (dyn/cm.sup.2), B: 10-25.times.10.sup.7 (dyn/cm.sup.2) and C: 2-10.times.10.sup.7 (dyn/cm.sup.2) and relations of the dynamic storage moduli in B>A>C, B-A>2.times.10.sup.7 and A-C>2.times.10.sup.7, and have loss tangents .delta. A: 0.15-0.22, B: 0.18-0.25 and C: 0.05-0.16 and a relation of loss tangents in B>A>C.

摘要翻译： 一种用于大型车辆的轮胎包括具有胎圈芯的胎圈部分，胎圈帘布层从轮胎的内部向外转动。 轮胎包括第一弹性体保护层A，第二弹性体保护层B和第三弹性体保护层C.这些保护层A，B和C具有动态存储模量E'A：7-20×107（dyn / cm 2），B ：10-25×107（dyn / cm2）和C：2-10×107（dyn / cm2）以及B> _A> C，B-_A> 2x107和_A-C> 2×107的动态存储模量的关系，并且具有损耗切线 δ_A：0.15-0.22，B：0.18-0.25和C：0.05-0.16，B> _A> C中的损耗角正切关系。