Paraffin wax compositions and rubber compositions into which paraffin
wax compositions are incorporated
    1.
    发明授权
    Paraffin wax compositions and rubber compositions into which paraffin wax compositions are incorporated 失效
    加入石蜡组合物的石蜡组合物和橡胶组合物

    公开(公告)号:US5296129A

    公开(公告)日:1994-03-22

    申请号:US798952

    申请日:1991-11-27

    摘要: A paraffin wax composition comprises straight-chain saturated hydrocarbons, wherein the content of each of the straight-chain hydrocarbons having the number of carbons being 22 to 44, respectively, is not less than 2% by weight relative to the entire straight-chain saturated hydrocarbons. A rubber composition is also disclosed, which comprises a rubber and this paraffin wax composition, wherein 1 to 10 parts by weight of the above paraffin wax composition is blended relative to 100 parts by weight of a diene rubber.

    摘要翻译: 石蜡组合物包含直链饱和烃,其中每个碳原子数为22〜44的直链烃的含量相对于整个直链饱和烃的含量为不小于2重量% 碳氢化合物。 还公开了一种橡胶组合物,其包含橡胶和该石蜡组合物,其中相对于100重量份的二烯橡胶共混1至10重量份的上述石蜡组合物。

    Pneumatic tire tread
    2.
    发明授权
    Pneumatic tire tread 失效
    气动轮胎胎面

    公开(公告)号:US4619300A

    公开(公告)日:1986-10-28

    申请号:US676332

    申请日:1984-11-29

    IPC分类号: B60C11/03 B60C11/11

    摘要: Disclosed herein is a pneumatic tire having a tread pattern formed in a tread portion divided into separate blocks at an outer surface of a tread rubber layer in at least a central region of said tread portion by a plurality of main grooves extending circumferentially and a great number of lateral grooves each extending toward a cross direction to each of said main grooves and having a shallower portion as compared with said main groove. The tread portion is a cap-base composite tread portion composed of an upper rubber layer forming a pattern of blocks and a lower rubber layer bordered on said upper rubber layer just therebeneath by a face connecting groove bottoms of said shallower portions of lateral grooves and forming a pattern of ribs separated from one another by said main grooves in the lateral direction and extending substantially continuously in the circumferential direction, and said upper rubber layer is substantially composed of a cap rubber having a JIS hardness at -20.degree. C. of not more than 75.degree. and said lower rubber layer is substantially composed of a base rubber having a JIS hardness at 100.degree. C. of not less than 54.degree. and a loss tangent of not more than 0.22 at 50 Hz, 25.degree. C. and a strain of 2%.

    摘要翻译: 本发明公开了一种充气轮胎,其具有胎面花纹,该胎面花纹形成在胎面部分中,所述胎面花纹形成在胎面部分的至少中心区域中的胎面橡胶层的外表面处,通过​​周向延伸的多个主槽和大量 横向凹槽各自朝向每个所述主凹槽横向延伸并且具有与所述主凹槽相比较浅的部分。 胎面部是由形成块状图案的上部橡胶层构成的帽基复合胎面部和在所述上部橡胶层上邻接的下部橡胶层,所述下部橡胶层通过侧面槽的所述浅部的槽底部的面连接并形成 所述主肋在横向方向上彼此间隔开并沿圆周方向大致连续地延伸,并且所述上橡胶层基本上由在-20℃下的JIS硬度的帽橡胶组成,不超过 所述下橡胶层基本上由在50Hz,25℃下的JIS硬度在100℃下不低于54度,损耗角正切不大于0.22的基础橡胶组成, 为2%。

    Pneumatic radial tires for passenger cars having low rolling resistance
and excellent slipping resistance
    4.
    发明授权
    Pneumatic radial tires for passenger cars having low rolling resistance and excellent slipping resistance 失效
    用于乘用车的气动子午线轮胎具有低滚动阻力和优异的抗滑性

    公开(公告)号:US4527606A

    公开(公告)日:1985-07-09

    申请号:US550733

    申请日:1983-11-14

    摘要: A pneumatic radial tire for passenger cars having a low rolling resistance and an excellent wet skid resistance is disclosed. The radial tire comprises a carcass of a radial construction toroidally extending between a pair of bead cores with the ends turned thereover, a tread portion arranged outside a crown portion of the carcass and having a two laminate structure of tread base rubber and tread cap rubber, and a reinforcing belt layer embedded in the tread base rubber and superimposed about the crown portion of the carcass. The tread base rubber and tread cap rubber have resiliences of not less than 65% and not more than 60%, respectively. The tread portion has a sectional ratio of a sectional area of the tread cap rubber occupied in the equatorial section of tire to a total sectional area of the tread portion of not less than 50% and a negative ratio of not more than 45%. The belt layer has a flatness of not more than 15%.

    摘要翻译: 公开了一种具有低滚动阻力和优异的抗湿滑性的乘用车用充气子午线轮胎。 子午线轮胎包括径向构造的胎体,其环形地延伸在一对胎圈芯之间,其端部转向其上,胎面部分布置在胎体的冠部外侧,并具有胎面基部橡胶和胎面橡胶的两个层叠结构, 以及嵌入胎面基部橡胶中并且叠加在胎体的冠部周围的加强带束层。 胎面基橡胶和胎冠橡胶的回复率分别为65%以上且60%以下。 胎面部分具有在轮胎的赤道部分中占据的胎冠橡胶的截面面积与胎面部分的总截面面积的比率不小于50%,负比率不大于45%。 带束层的平坦度不超过15%。

    Pneumatic radial tires
    6.
    发明授权
    Pneumatic radial tires 失效
    气动子午线轮胎

    公开(公告)号:US4436131A

    公开(公告)日:1984-03-13

    申请号:US422912

    申请日:1982-09-24

    摘要: A pneumatic radial tire is disclosed, which comprises as a reinforcement a belt consisting of a first belt body composed of a single ply containing metal twisted cords arranged at an inclination angle of 5.degree.-25.degree. with respect to the equatorial plane of the tire and embedded in a coating rubber, both end portions in widthwise direction of which being folded on the remaining central base portion thereof, and a second belt body composed of at least one rubberized ply containing inextensible cords crossed with the cords in the base portion of the first belt body. In the first belt body, the coating rubber has a dynamic modulus of 160-400 kg/cm.sup.2 and a gauge of rubber interposed between the cords in the base portion and the cords in the folded portion is within a range of 1.3-4.5 times an average diameter of the cords and is not less than 2 times a gauge of the coating rubber located outside the cords in the base portion opposite to the folded portion.

    摘要翻译: 公开了一种充气子午线轮胎,其包括作为增强件的带,该带由第一带体组成,第一带体由相对于轮胎的赤道平面以5°-25°的倾斜角布置的金属扭绞线的单层组成, 嵌入涂层橡胶中,其宽度方向上的两个端部在其剩余的中心基部上折叠,第二带体由至少一个橡胶层组成,所述橡胶层包含不可延伸的帘线,所述帘布层在所述第一 皮带体。 在第一带体中,涂层橡胶的动态模量为160-400kg / cm 2,插入在基部中的帘线和折叠部分的帘线之间的橡胶规尺在1.3-4.5倍的范围内 帘线的平均直径并且不小于位于与折叠部分相对的基部中的帘线外侧的涂层橡胶的规格的2倍。

    Pneumatic tire
    7.
    发明授权
    Pneumatic tire 失效
    气动轮胎

    公开(公告)号:US4398582A

    公开(公告)日:1983-08-16

    申请号:US260552

    申请日:1981-05-05

    摘要: A pneumatic tire having remarkably low rolling resistance and high wet skid resistance without deteriorating the wear resistance is obtained by using in at least the ground-contact area of its tread, a rubber composition consisting essentially of 100 parts by weight of a mixed elastomer and 40-80 parts by weight of carbon black, the mixed elastomer consisting of 10-60 parts by weight of a solution-polymerized styrene-butadiene copolymer rubber having a bonded styrene content of 5-30% by weight and a trans-1,4 content in butadiene unit of not more than 45% by weight; 10-50 parts by weight of an emulsion-polymerized styrene-butadiene copolymer rubber having a bonded styrene content of 30-50% by weight; and 0-80 parts by weight of at least one rubber having a glass transition temperature of not higher than -50.degree. C., which is selected from the group consisting of natural rubber, synthetic polyisoprene rubber, polybutadiene rubber and an emulsion polymerized styrene-butadiene copolymer rubber having a bonded styrene content of 18-28% by weight. The use of carbon black having a specific surface area of 85-95 m.sup.2 /g, a dibutyl phthalate absorption value of 100-110 ml/100 g, a tinting strength of 95-105 and a half value width of at least 180 m.mu. in the size distribution curve of the aggregates is particularly effective for lowering the rolling resistance.

    摘要翻译: 通过在其胎面的至少接地面积中使用基本上由100重量份混合弹性体和40重量份组成的橡胶组合物,获得具有显着低滚动阻力和高抗湿滑性的充气轮胎,而不损害耐磨性 -80重量份的炭黑,所述混合弹性体由10-60重量份的苯乙烯含量为5-30重量%的结合苯乙烯 - 丁二烯共聚物橡胶和反式-1,4-含量 丁二烯单位不超过45重量%; 10-50重量份的苯乙烯含量为30-50重量%的乳液聚合苯乙烯 - 丁二烯共聚物橡胶; 和0-80重量份的玻璃化转变温度不高于-50℃的至少一种橡胶,其选自天然橡胶,合成聚异戊二烯橡胶,聚丁二烯橡胶和乳液聚合的苯乙烯 - 苯乙烯含量为18〜28重量%的丁二烯共聚物橡胶。 使用比表面积为85-95m 2 / g,邻苯二甲酸二丁酯吸收值为100-110ml / 100g,着色强度为95-105,半值宽度为至少180μm的炭黑 在聚集体的尺寸分布曲线中,降低滚动阻力特别有效。

    Pneumatic radial tires for passenger cars having a low rolling resistance
    8.
    发明授权
    Pneumatic radial tires for passenger cars having a low rolling resistance 失效
    具有低滚动阻力的乘用车气动子午线轮胎

    公开(公告)号:US4349061A

    公开(公告)日:1982-09-14

    申请号:US179197

    申请日:1980-08-18

    摘要: A pneumatic radial tire for passenger cars having a low rolling resistance is disclosed. The radial tire comprises a body reinforcement including a toroidal carcass composed of radially arranged cords and a belt superimposed about the carcass and consisting of plural rubberized plies each containing cords arranged at 60.degree.-80.degree. with respect to the radial plane of the tire, which cords of said plies being crossed with each other, and a bead reinforcement wherein the carcass is wound around a bead core to form a turnup portion, thread and sidewall rubbers covering these reinforcements. In the radial tire, a super-hard bead filler rubber is arranged at a region extending from the bead core to the middle part of the side portion, and a base rubber having a low loss modulus and a high resilience is arranged on at least both side edge parts of the belt at a volume ratio in the coating rubber for tread portion of 0.1-0.5.

    摘要翻译: 公开了一种具有低滚动阻力的乘用车用充气子午线轮胎。 子午线轮胎包括主体加强件,其包括由径向布置的帘线构成的环形胎体和围绕胎体叠加的带,由多个橡胶层构成,每个帘布层包含相对于轮胎的径向平面布置在60°-80°的帘线, 所述帘布层的帘线彼此交叉,并且胎圈加强件,其中胎体缠绕在胎圈芯上以形成翻转部分,螺纹和侧壁橡胶覆盖这些增强件。 在子午线轮胎中,在从胎圈芯延伸到侧部的中间部分的区域处设置有超硬胎圈填充橡胶,并且至少两个配置有低损耗模量和高弹性的基础橡胶 皮带的边缘部分以胎面部分的涂层橡胶的体积比为0.1-0.5。