公开(公告)号：US06376587B1

公开(公告)日：2002-04-23

申请号：US09338540

申请日：1999-06-23

申请人： Yukitoshi Ajiro ,  Kazuo Yagawa

发明人： Yukitoshi Ajiro ,  Kazuo Yagawa

IPC分类号： C08K320

CPC分类号： C08K3/04 ,  B60C1/0016 ,  B60C2011/0025 ,  C08K3/36 ,  C08L9/06 ,  C08L61/06 ,  Y02T10/862 ,  C08L2666/16

摘要： A rubber composition for a tire tread comprising: per 100 parts by weight of a diene based rubber component containing at least 50 parts by weight of SBR, 5 to 50 parts by weight of carbon black (C/B) having a nitrogen absorption surface area (N2SA) of from 90 to 180 m2/g and a DBP absorption amount of from 100 to 170 ml/100 g and 5 to 50 parts by weight of silica (S), wherein the total amount of (C/B+S) is from 30 to 90 parts by weight; and 5 to 20% by weight of a silane coupling agent relative to the blended amount of silica; 1 to 15 parts by weight of a thermoplastic (novolac type) phenol resin; and 5 to 20% by weight of hexamethylenetetramine relative to the blended amount of resin, wherein tan &dgr; at 60° C., tan &dgr; at 0° C., dynamic modulus E′ at 30° C., and tensile stress at the time of extending 300% (M300) at 25° C. of the rubber composition are tan &dgr; (60° C.)≦0.14, tan &dgr; (0° C.)≧0.50, E′ (30° C.)≧1.2×107 pa and M300 (25° C.)≦9.5 Mpa, respectively, and a pneumatic tire using the rubber composition.

摘要翻译： 一种轮胎胎面用橡胶组合物，其特征在于，每100重量份含有至少50重量份SBR的二烯系橡胶成分，5〜50重量份具有氮吸收表面积的炭黑（C / B） （N 2 SA）为90〜180m 2 / g，DBP吸附量为100〜170ml / 100g，5〜50重量份二氧化硅（S），其中（C / B + S） 为30〜90重量份; 和5〜20重量％的硅烷偶联剂相对于二氧化硅的配合量; 1〜15重量份的热塑性（酚醛清漆型）酚醛树脂; 和5至20重量％的六亚甲基四胺相对于树脂的共混量，其中在60℃下的tanδ，0℃下的tanδ，30℃下的动态模量E'和此时的拉伸应力 在25℃下延伸300％（M300）的橡胶组合物为tanδ（60℃）<= 0.14，tanδ（0℃）> = 0.50，E'（30℃）> = 1.2×10 7 pa和M300（25℃）<= 9.5Mpa，以及使用该橡胶组合物的充气轮胎。

公开(公告)号：US5531256A

公开(公告)日：1996-07-02

申请号：US230774

申请日：1994-04-21

申请人： Takatsugu Hashimoto ,  Keizo Akutagawa ,  Kazuo Yagawa ,  Makoto Tanaka ,  Junichi Yamagishi ,  Kazuo Hachiya

发明人： Takatsugu Hashimoto ,  Keizo Akutagawa ,  Kazuo Yagawa ,  Makoto Tanaka ,  Junichi Yamagishi ,  Kazuo Hachiya

IPC分类号： B60C1/00 ,  B60C11/00

CPC分类号： B60C11/00 ,  B60C1/00 ,  B60C1/0016 ,  B60C11/1346 ,  Y10T152/10828

摘要： In a flame-retardant rubber tire comprising an outer rubber body portion consisting essentially of a tread rubber layer, a sidewall rubber layer extending inward from each side edge of the tread rubber layer toward the vicinity of a bead portion in radial direction and a rubber chafer layer arranged in the vicinity of the bead portion, a flame-retardant rubber composition having an oxygen index of not less than 19.8 but not more than 27.5 is disposed so as to amount at least 20% by weight of the tread rubber layer. Such rubber tires are used in electric vehicles, automobiles, airplanes and the like and have excellent self-extinguishing property and flame-delaying property without damaging other rubber properties.

摘要翻译： 在一种阻燃橡胶轮胎中，该橡胶轮胎包括基本上由胎面橡胶层组成的外部橡胶本体部分，从胎面橡胶层的每个侧边缘朝向径向方向的胎圈部分附近向内延伸的侧壁橡胶层和橡胶胎圈包布 布置在胎圈部附近的层，设置氧指数为19.8以上且27.5以下的阻燃性橡胶组合物，其量为胎面橡胶层的至少20重量％。 这种橡胶轮胎用于电动汽车，汽车，飞机等，具有优异的自熄性和阻燃性，而不损害其它橡胶性能。

公开(公告)号：US06336486B1

公开(公告)日：2002-01-08

申请号：US09052968

申请日：1998-04-01

申请人： Shizuo Iwasaki ,  Kazuo Yagawa ,  Naohiro Sasaka ,  Kazuo Hayashi

发明人： Shizuo Iwasaki ,  Kazuo Yagawa ,  Naohiro Sasaka ,  Kazuo Hayashi

IPC分类号： B60C100

CPC分类号： B60C11/00 ,  B60C1/0016 ,  B60C11/005 ,  B60C11/03 ,  B60C11/0309 ,  B60C11/18

摘要： A pneumatic radial tire comprises a tread portion having a two-layer structure of a cap rubber layer disposed outward in the radial direction and a base rubber layer disposed inward in the radial direction, in which an outer surface of said base rubber layer in the radial direction being existent in a position corresponding to not less than 20% of a depth of a main groove formed in the tread portion outward from a bottom of the main groove in the radial direction, and the base rubber layer being compounded with a recrosslinking inhibition assistant and/or an inorganic compound powder.

摘要翻译： 一种充气子午线轮胎包括具有沿径向向外设置的盖橡胶层的两层结构的胎面部分和沿径向向内设置的基部橡胶层，其中所述基部橡胶层的径向的外表面 方向存在于对应于在径向方向上从主槽的底部向外形成的胎面部中形成的主槽的深度不小于20％的位置，并且基部橡胶层与再交联抑制助剂 和/或无机化合物粉末。

公开(公告)号：US06186204B1

公开(公告)日：2001-02-13

申请号：US09107431

申请日：1998-06-30

申请人： Naohiro Sasaka ,  Kazuo Yagawa ,  Shigeo Kimura

发明人： Naohiro Sasaka ,  Kazuo Yagawa ,  Shigeo Kimura

IPC分类号： B06C1100

CPC分类号： C08K5/47 ,  B60C1/0016 ,  C08K5/5398 ,  Y10T152/10495 ,  C08L9/06

摘要： A pneumatic tire comprising a tread portion formed by using a rubber composition which comprises: a rubber component comprising 50 parts by weight or more of SBR in 100 parts by weight of the rubber component; optionally, 5 to 40 parts by weight of aluminum hydroxide per 100 parts of the rubber component; per 100 parts by weight of the rubber component, 20 parts by weight or more of a softener which comprises 5 to 55 parts by weight of a specific resin softener having a softening point of 35 to 150° C.; and per 100 parts by weight of the rubber component, 0.2 to 10.0 parts by weight of a specific vulcanization accelerator of a dithiophosphoric acid compound or a specific vulcanization accelerator of a benzothiazole compound. The pneumatic tire exhibits excellent stability and controllability on wet roads or a combination of excellent stability and controllability on wet roads and excellent comfort of ride even when a vehicle is vibrating throughout the life of the pneumatic tire.

摘要翻译： 一种充气轮胎，包括通过使用橡胶组合物形成的胎面部分，所述胎面部分包括：在100重量份的所述橡胶组分中包含50重量份或更多的SBR的橡胶组分; 任选地，每100份橡胶组分为5至40重量份的氢氧化铝; 每100重量份的橡胶组分，20重量份或更多的软化剂，其包含5至55重量份的软化点为35至150℃的特定树脂软化剂; 和100重量份的橡胶组分，0.2至10.0重量份的二硫代磷酸化合物的特定硫化促进剂或苯并噻唑化合物的特定硫化促进剂。 充气轮胎在潮湿道路上表现出优异的稳定性和可控性，或者即使当车辆在充气轮胎的整个使用寿命期间振动时，在湿路面上也具有优异的稳定性和可控性的组合，并且具有优异的乘坐舒适性。

公开(公告)号：US5340867A

公开(公告)日：1994-08-23

申请号：US971472

申请日：1992-11-04

申请人： Kazuo Yagawa ,  Takatsugu Hashimoto ,  Junichi Yamagishi ,  Kazuo Hachiya ,  Satoshi Takezawa

发明人： Kazuo Yagawa ,  Takatsugu Hashimoto ,  Junichi Yamagishi ,  Kazuo Hachiya ,  Satoshi Takezawa

IPC分类号： C08K3/02 ,  C08L21/00 ,  C08K3/22

CPC分类号： C08K3/02 ,  C08L21/00

摘要： A flame-retardant rubber composition has an oxygen index of 19.8-27.5 and comprises not more than 24% by weight of red phosphorus as a flame retardant based on the rubber composition and a nitrile group-containing elastomer as a flame-retardant polymer component as a part of rubber ingredients constituting the rubber composition. Such flame-retardant rubber compositions are very useful in applications such as industrial goods, tire and the like strongly requiring the fire preventing function.

摘要翻译： 阻燃橡胶组合物的氧指数为19.8-27.5，并且包含不超过24重量％的基于橡胶组合物的阻燃剂的红磷和作为阻燃聚合物组分的含腈基弹性体作为阻燃聚合物组分 构成橡胶组合物的橡胶成分的一部分。 这种阻燃橡胶组合物在诸如强烈要求防火功能的工业品，轮胎等应用中非常有用。

公开(公告)号：US06242522B1

公开(公告)日：2001-06-05

申请号：US09274012

申请日：1999-03-22

申请人： Naofumi Ezawa ,  Kazuo Yagawa ,  Naohiro Sasaka

发明人： Naofumi Ezawa ,  Kazuo Yagawa ,  Naohiro Sasaka

IPC分类号： C08J300

CPC分类号： C08K5/47 ,  B60C1/0016 ,  C08K3/22 ,  C08K3/36 ,  C08K5/5398 ,  Y10S152/905 ,  Y10T152/10 ,  Y10T152/10495 ,  C08L21/00

摘要： There is disclosed a rubber composition for a tire tread Which comprises 100 parts by weight of (A) a rubber component comprising a diene-based synthetic rubber or a mixture of a diene-based synthetic rubber and natural rubber and containing at least 20% by weight of a styrene-butadiene rubber; 5 to 50 parts by weight of (B) aluminum hydroxide powders; and at least 5 parts by weight of (C) silica powders, wherein the total amount of the components (B) and (C) is in the range of 40 to 80 parts by weight; and optionally chemical agents such as vulcanizing agents, vulcanization accelerators and antioxidants, and also is disclosed a pneumatic tire in which the above rubber composition is used as the tread rubber. The above rubber composition, when made into a tire tread, can maintain favorable low fuel consumption properties and low wear resistance, and besides can impart the tire with greatly improved gripping properties on wet road surfaces particularly at a low temperature. Moreover, the pneumatic tire made from the above rubber composition can exert excellent effect of maintaining a high maneuverability from the initial stage of running to and after the middle stage thereof.

摘要翻译： 公开了一种用于轮胎胎面的橡胶组合物，其包含100重量份的（A）包含二烯类合成橡胶的橡胶组分或二烯类合成橡胶和天然橡胶的混合物，并且含有至少20％ 苯乙烯 - 丁二烯橡胶的重量; 5〜50重量份的（B）氢氧化铝粉末; 和至少5重量份的（C）二氧化硅粉末，其中组分（B）和（C）的总量在40至80重量份的范围内; 和任选的化学试剂如硫化剂，硫化促进剂和抗氧化剂，并且还公开了一种充气轮胎，其中使用上述橡胶组合物作为胎面橡胶。 上述橡胶组合物当制成轮胎胎面时，可以保持良好的低燃料消耗性能和低耐磨性，并且还可以赋予轮胎在湿路面上，特别是在低温下大大提高的抓持性能。 此外，由上述橡胶组合物制成的充气轮胎可以发挥从运行的初始阶段到其中间阶段之后的高机动性的良好效果。

公开(公告)号：US5341862A

公开(公告)日：1994-08-30

申请号：US974519

申请日：1992-11-12

申请人： Takatsugu Hashimoto ,  Keizo Akutagawa ,  Kazuo Yagawa ,  Makoto Tanaka ,  Junichi Yamagishi ,  Kazuo Hachiya

发明人： Takatsugu Hashimoto ,  Keizo Akutagawa ,  Kazuo Yagawa ,  Makoto Tanaka ,  Junichi Yamagishi ,  Kazuo Hachiya

IPC分类号： B60C1/00 ,  B60C11/00

CPC分类号： B60C11/00 ,  B60C1/00 ,  B60C1/0016 ,  B60C11/1346 ,  Y10T152/10495

摘要： In a flame-retardant rubber tire comprising an outer rubber body portion consisting essentially of a tread rubber layer, a sidewall rubber layer extending inward from each side edge of the tread rubber layer toward the vicinity of a bead portion in radial direction and a rubber chafer layer arranged in the vicinity of the bead portion, a flame-retardant rubber composition having an oxygen index of not less than 19.8 but not more than 27.5 is disposed so as to amount at least 20% by weight of the tread rubber layer. Such rubber tires are used in electric vehicles, automobiles, airplanes and the like and have excellent self-extinguishing property and flame-delaying property without damaging other rubber properties.

摘要翻译： 在一种阻燃橡胶轮胎中，该橡胶轮胎包括基本上由胎面橡胶层组成的外部橡胶本体部分，从胎面橡胶层的每个侧边缘朝向径向方向的胎圈部分附近向内延伸的侧壁橡胶层和橡胶胎圈包布 布置在胎圈部附近的层，设置氧指数为19.8以上且27.5以下的阻燃性橡胶组合物，其量为胎面橡胶层的至少20重量％。 这种橡胶轮胎用于电动汽车，汽车，飞机等，具有优异的自熄性和阻燃性，而不损害其它橡胶性能。