High performance tire tread rubber composition
    92.
    发明授权
    High performance tire tread rubber composition 失效
    高性能轮胎胎面胶组成

    公开(公告)号:US5994448A

    公开(公告)日:1999-11-30

    申请号:US133503

    申请日:1998-08-12

    摘要: This invention relates to a tire tread compound that can be used in manufacturing tires having outstanding traction characteristics without compromising treadwear and rolling resistance. The tire tread compounds of this invention are made utilizing an isoprene-butadiene rubber having a high glass transition temperature and having SnR.sub.3 end groups, wherein R represents an alkyl group, such as a tertiary-butyl group. These isoprene-butadiene rubbers are made by reacting an isoprene-butadiene rubber having a glass transition temperature which is within the range of about -50.degree. C. to about 0.degree. C. with a tin compound of the formula SnR.sub.3 X, wherein R represents an alkyl group and wherein X represents a halogen. This invention more specifically discloses a tire tread rubber composition which is comprised of (1) about 60 phr to about 95 phr of an isoprene-butadiene rubber having a glass transition temperature which is within the range of about -50.degree. C. to about 0.degree. C. and having --SnR.sub.3 end groups, (2) about 5 phr to about 30 phr of natural rubber and (3) up to about 25 phr of a rubbery polymer having a low glass transition temperature which is within the range of about -85.degree. C. to about -55.degree. C., with the proviso that the total amount of the natural rubber and the rubbery polymer having a low glass transition temperature does not exceed about 40 phr. The rubbery polymer having a low glass transition temperature will typically be high cis-1,4-polybutadiene, isoprene-butadiene rubber, styrene-butadiene rubber or styrene-isoprene-butadiene rubber.

    摘要翻译: 本发明涉及一种轮胎胎面胶,其可用于制造具有优异牵引特性的轮胎,而不损害胎面和滚动阻力。 本发明的轮胎胎面胶料采用高玻璃化转变温度的异戊二烯 - 丁二烯橡胶制成,并具有SnR 3端基,其中R表示烷基,如叔丁基。 这些异戊二烯 - 丁二烯橡胶通过使玻璃化转变温度在约-50℃至约0℃范围内的异戊二烯 - 丁二烯橡胶与式SnR 3 X的锡化合物反应制备,其中R表示 烷基,其中X表示卤素。 本发明更具体地公开了一种轮胎胎面橡胶组合物,其包含(1)约60phr至约95phr的玻璃化转变温度在约-50℃至约0的范围内的异戊二烯 - 丁二烯橡胶 具有-SnR 3端基,(2)约5phr至约30phr的天然橡胶和(3)至多约25phr的玻璃化转变温度低于约 - 约25phr的橡胶状聚合物, 85℃至约-55℃,条件是具有低玻璃化转变温度的天然橡胶和橡胶状聚合物的总量不超过约40phr。 具有低玻璃化转变温度的橡胶状聚合物通常是高顺式-1,4-聚丁二烯,异戊二烯 - 丁二烯橡胶,苯乙烯 - 丁二烯橡胶或苯乙烯 - 异戊二烯 - 丁二烯橡胶。

    Tire with chafer composition
    95.
    发明授权
    Tire with chafer composition 失效
    轮胎配合的轮胎

    公开(公告)号:US5885389A

    公开(公告)日:1999-03-23

    申请号:US813816

    申请日:1997-03-06

    IPC分类号: B60C1/00 B60C15/06 C08L9/00

    摘要: A pneumatic rubber tire with a chafer positioned around at least a portion of its bead component and intended for contacting a rigid rim of a wheel, wherein said chafer is composed of a rubber composition which is based upon a combination of a specified trans 1,4-polybutadiene polymer and a high cis 1,4-polybutadiene rubber. The rubber composition for the tire chafer component may also contain cis 1,4-polyisoprene rubber and/or styrene/butadiene rubber.

    摘要翻译: 一种具有胎圈包布的充气橡胶轮胎,其位于其胎圈部件的至少一部分周围并且用于接触车轮的刚性边缘,其中所述胎圈包布由橡胶组合物组成,所述橡胶组合物基于特定的反式1,4 聚丁二烯聚合物和高顺式1,4-聚丁二烯橡胶。 用于轮胎胎圈包布组件的橡胶组合物还可以含有顺式1,4-聚异戊二烯橡胶和/或苯乙烯/丁二烯橡胶。

    Tire tread compound
    96.
    发明授权
    Tire tread compound 失效
    轮胎胎面复合物

    公开(公告)号:US5859133A

    公开(公告)日:1999-01-12

    申请号:US617234

    申请日:1996-03-18

    摘要: The subject invention discloses a pneumatic tire having an outer circumferential tread wherein said tread is a sulfur-cured rubber composition comprised of (a) an isoprene-butadiene diblock rubber, said isoprene-butadiene diblock rubber being comprised of a butadiene block and an isoprene-butadiene block, wherein said butadiene block has a number average molecular weight which is within the range of about 25,000 to about 350,000, wherein said isoprene-butadiene block has a number average molecular weight which is within the range of about 25,000 to about 350,000, wherein said isoprene-butadiene diblock rubber has essentially one glass transition temperature which is within the range of about -100.degree. C. to about -70.degree. C., wherein said isoprene-butadiene diblock polymer has a Mooney ML-4 viscosity at 100.degree. C. which is within the range of about 50 to about 140, and wherein the repeat units derived from isoprene and 1,3-butadiene in the isoprene-butadiene block are in essentially random order; and (b) a second rubber selected from the group consisting of high vinyl polybutadiene rubber, styrene-isoprene-butadiene rubber, solution styrene-butadiene rubber and emulsion styrene-butadiene rubber.

    摘要翻译: 本发明公开了一种具有外周胎面的充气轮胎,其中所述胎面是由(a)异戊二烯 - 丁二烯二嵌段橡胶组成的硫固化橡胶组合物,所述异戊二烯 - 丁二烯二嵌段橡胶由丁二烯嵌段和异戊二烯 - 丁二烯嵌段,其中所述丁二烯嵌段的数均分子量在约25,000至约350,000的范围内,其中所述异戊二烯 - 丁二烯嵌段的数均分子量在约25,000至约350,000的范围内,其中 所述异戊二烯 - 丁二烯二嵌段橡胶具有在约-100℃至约-70℃范围内的基本上一个玻璃化转变温度,其中所述异戊二烯 - 丁二烯二嵌段聚合物在100℃下具有门尼ML-4粘度 ,其在约50至约140的范围内,并且其中衍生自异戊二烯和1,3-丁二烯的异戊二烯 - 丁二烯嵌段中的重复单元基本上为兰德 呃订单 和(b)选自高乙烯基聚丁二烯橡胶,苯乙烯 - 异戊二烯 - 丁二烯橡胶,溶剂苯乙烯 - 丁二烯橡胶和乳液丁苯橡胶的第二橡胶。

    Silica reinforced rubber composition
    98.
    发明授权
    Silica reinforced rubber composition 失效
    硅胶增强橡胶组合物

    公开(公告)号:US5719208A

    公开(公告)日:1998-02-17

    申请号:US832720

    申请日:1997-04-11

    CPC分类号: C08K5/103 C08K5/01 C08K5/375

    摘要: The present invention relates to a silica reinforced rubber composition and pneumatic tires having treads comprised of the silica reinforced rubber compositions. The silica reinforced rubber composition comprises an elastomer, silica, optionally carbon black and a silica coupler of the formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 individually represent hydrogen or an alkyl of 1 to 6 carbon atoms; X represents oxygen or sulfur; and Z represents a hydroxyalkyl group of 2 to 7 carbon atoms.

    摘要翻译: 本发明涉及二氧化硅增强橡胶组合物和具有由二氧化硅增强橡胶组合物组成的胎面的充气轮胎。 二氧化硅增强橡胶组合物包含弹性体,二氧化硅,任选炭黑和下式的二氧化硅偶联剂:其中R 1,R 2和R 3各自表示氢或1-6个碳原子的烷基; X表示氧或硫; Z表示2〜7个碳原子的羟烷基。