公开(公告)号：US06216757B1

公开(公告)日：2001-04-17

申请号：US08320781

申请日：1994-10-11

申请人： Masashi Ohara ,  Eiji Takiguchi

发明人： Masashi Ohara ,  Eiji Takiguchi

IPC分类号： B60C100

CPC分类号： B60C11/0083 ,  B60C11/00 ,  B60C11/005 ,  B60C2011/147

摘要： A low noise level tire includes a carcass composed of at least one ply toroidally extending between a pair of bead cores, and a tread arranged radially outwardly of the carcass and composed of an outer cap rubber layer and an inner base rubber layer. The cap rubber layer is made of a rubber having a dynamic storage modulus of not less than 1.0×108 dyn/cm2 and not more than 2.0×108 dyn/cm2 and a loss tangent more than 0.15 and not more than 0.35. The base rubber layer is made of a rubber having a dynamic storage modulus of not less than 1.2×108 dyn/cm2 and not more than 2.2×108 dyn/cm2 and a rate of foaming of not less than 5% and not more than 50%.

摘要翻译： 低噪音级轮胎包括由在一对胎圈芯之间环形延伸的至少一个层构成的胎体和设置在胎体径向外侧并由外盖橡胶层和内基底橡胶层构成的胎面。 盖橡胶层由动态储能模量为1.0×10 8 dyn / cm 2以上且2.0×10 8 dyn / cm 2以下且损耗角正切为0.15以上且0.35以下的橡胶制成。 基底橡胶层由动态储能模量为1.2×10 8 dyn / cm 2以上且2.2×10 8 dyn / cm 2以下的橡胶制成，发泡率为5％以上且50％以下。

公开(公告)号：US07019063B2

公开(公告)日：2006-03-28

申请号：US09959418

申请日：2001-02-28

申请人： Ichiro Wada ,  Masashi Ohara ,  Osamu Uchino ,  Toshiaki Koura ,  Naofumi Ezawa ,  Motoaki Kanoh ,  Yasuyoshi Kawaguchi ,  Shun Nakamura

发明人： Ichiro Wada ,  Masashi Ohara ,  Osamu Uchino ,  Toshiaki Koura ,  Naofumi Ezawa ,  Motoaki Kanoh ,  Yasuyoshi Kawaguchi ,  Shun Nakamura

IPC分类号： C08K3/34 ,  C08K3/04 ,  C08J3/20 ,  B60C5/01 ,  C08L27/24

CPC分类号： C08K3/346 ,  B60C1/0008 ,  B60C5/14 ,  C08K2201/016 ,  C08L21/00 ,  C08L23/283 ,  C08L2312/00 ,  Y10T152/10513 ,  C08L2666/06 ,  C08L2666/04

摘要： The rubber composition of the present invention is used for producing an inner liner of a pneumatic tire, and is obtained by compounding a rubber component and a layered or plate-like mineral. The layered or plate-like mineral has an aspect ratio of 3 or more and less than 30. The present invention further provides a production method of the rubber composition and a pneumatic tire which is produced by using the rubber composition. The present invention is applicable to a tire of passenger vehicles, bus or truck, and a tire of airplane. According to the present invention, the air permeation resistance is remarkably improved and the workability is also improved. Therefore, the rapture and hole defect of a non-vulcanized sheet during the tire construction can be avoided. By using the rubber composition, the gauge of the inner liner of pneumatic tire can be reduced while maintaining the inner pressure of tire, thereby reducing the weight of tire.