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265 条记录 (耗时 0.034 秒)

    Rubber blend containing cyclized polyisoprene
    56.
    发明授权
    Rubber blend containing cyclized polyisoprene 失效
    含有环化聚异戊二烯的橡胶混合物

    公开(公告)号：US06262178B1

    公开(公告)日：2001-07-17

    申请号：US09473011

    申请日：1999-12-28

    申请人： Paul Harry Sandstrom ,  Joseph Frank Geiser ,  Judy Chu ,  David John Zanzig ,  Richard George Bauer

    发明人： Paul Harry Sandstrom ,  Joseph Frank Geiser ,  Judy Chu ,  David John Zanzig ,  Richard George Bauer

    IPC分类号： C08L2704

    CPC分类号： C08L7/00 ,  B60C1/00 ,  B60C1/0016 ,  C08L9/00 ,  C08L9/06 ,  C08L9/08 ,  C08L15/00 ,  C08L21/00 ,  C08L23/283 ,  C08L2666/08 ,  C08L2666/06

    摘要： This invention is based upon the discovery that cyclized polyisoprene polymers can be incorporated into tire tread compounds to improve traction, treadwear, and resistance to tear. It is further based upon the discovery that cyclized polyisoprene polymers can be blended with halobutyl rubber and/or natural rubber and can be utilized in tire innerliner formulations. The present invention more specifically discloses a tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said tread is adapted to be ground-contacting, and wherein said tread is comprised of a sulfur cured rubber composition which is comprised of about 5 phr to about 50 phr of cyclized polyisoprene and about 50 phr to about 95 phr of at least one other rubbery polymer. The present invention further discloses a tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, an innerliner, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said innerliner is comprised of a sulfur cured rubber composition which is comprised of about 5 phr to about 50 phr of cyclized polyisoprene and about 50 phr to about 95 phr of at least one other rubbery polymer selected from the group consisting of natural rubber and halobutyl rubber.

    摘要翻译： 本发明基于以下发现：环化聚异戊二烯聚合物可以并入轮胎胎面胶料中以改善牵引力，胎面磨损和耐撕裂性。 进一步基于以下发现：环化聚异戊二烯聚合物可与卤代丁基橡胶和/或天然橡胶共混，并可用于轮胎内衬配方中。 本发明更具体地公开了一种轮胎，其由具有外圆周胎面的大致环形胎体，两个间隔开的胎圈，从胎圈到胎圈延伸的至少一个帘布层和从所述胎面径向延伸并将所述胎面连接到所述胎圈的轮胎， 其中所述胎面适于与地面接触，并且其中所述胎面由硫磺固化的橡胶组合物组成，硫化橡胶组合物由约5phr至约50phr的环化聚异戊二烯和约50phr至约95phr的至少一种其它 橡胶状聚合物。 本发明进一步公开了一种轮胎，其包括通常为环形的胎体，其具有外圆周胎面，两个间隔开的胎圈，内衬层，至少一个从胎圈到胎圈延伸的帘布层以及从所述踏面径向延伸并将所述胎面连接到所述胎面的侧壁 珠，其中所述内衬层由硫固化的橡胶组合物组成，其由约5phr至约50phr的环化聚异戊二烯和约50phr至约95phr的至少一种其它橡胶状聚合物组成，所述其它橡胶状聚合物选自天然橡胶 和卤代丁基橡胶。

    Tire tread compositions containing asymmetrically tin-coupled polybutadiene rubber
    57.
    发明授权
    Tire tread compositions containing asymmetrically tin-coupled polybutadiene rubber 失效
    含有不对称锡偶联聚丁二烯橡胶的轮胎胎面组合物

    公开(公告)号：US6084022A

    公开(公告)日：2000-07-04

    申请号：US935172

    申请日：1997-09-22

    申请人： Edward John Blok ,  Paul Harry Sandstrom ,  Cheryl Ann Losey ,  Adel Farhan Halasa ,  Wen-Liang Hsu ,  David John Zanzig ,  John Joseph Andre Verthe

    发明人： Edward John Blok ,  Paul Harry Sandstrom ,  Cheryl Ann Losey ,  Adel Farhan Halasa ,  Wen-Liang Hsu ,  David John Zanzig ,  John Joseph Andre Verthe

    IPC分类号： B60C1/00 ,  C08C19/44 ,  C08J3/26 ,  C08K5/548 ,  C08L7/00 ,  C08L9/00 ,  C08L15/00 ,  C08L21/00 ,  C08K3/36

    CPC分类号： C08L15/00 ,  B60C1/0016 ,  C08C19/44 ,  C08K5/548 ,  C08L15/005 ,  C08L21/00 ,  C08L7/00 ,  C08L9/00

    摘要： This invention relates to a tire tread compound that is easily processable which can be used to improve the treadwear, rolling resistance and traction characteristics of tires. The tire tread compounds of this invention are a blend of tin-coupled polybutadiene, high vinyl polybutadiene and natural rubber. This blend of low glass transition temperature rubber and high glass transition temperature rubber is surprisingly easy to process which makes the concept of this invention commercially feasible. Thus, the tire tread compounds of this invention can be utilized in making tires having greatly improved traction characteristics and treadwear without sacrificing rolling resistance. These improved properties may be due, in part, to better interaction and compatibility with carbon black and/or silica fillers. The polybutadiene in the blend can be asymmetrical tin-coupled to further improve the cold flow characteristics of the rubber blend. Asymmetrical tin coupling in general also leads to better processability and other beneficial properties. This invention more specifically discloses a tire tread rubber composition which is comprised of (1) from about 20 phr to about 60 phr of tin-coupled polybutadiene rubber, (2) from about 20 phr to about 60 phr of a rubber selected from the group consisting of natural rubber and synthetic polyisoprene and (3) from about 5 phr to about 40 phr of high vinyl polybutadiene rubber.

    摘要翻译： 本发明涉及一种易于加工的轮胎胎面胶，其可用于改善轮胎的胎面磨损，滚动阻力和牵引特性。 本发明的轮胎胎面胶料是锡偶合的聚丁二烯，高乙烯基聚丁二烯和天然橡胶的混合物。 这种低玻璃化转变温度橡胶和高玻璃化转变温度橡胶的混合物令人惊奇地易于加工，这使得本发明的概念在商业上可行。 因此，本发明的轮胎胎面胶料可用于制造具有极大改善的牵引特性和胎面磨损的轮胎，而不会牺牲滚动阻力。 这些改进的性质可能部分是由于与炭黑和/或二氧化硅填料的更好的相互作用和相容性。 共混物中的聚丁二烯可以是不对称的锡偶联，以进一步改善橡胶共混物的冷流特性。 不对称锡偶联一般也会导致更好的加工性能和其他有益的性能。 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20phr至约60phr的锡偶联的聚丁二烯橡胶，（2）约20phr至约60phr的选自下组的橡胶： 由天然橡胶和合成聚异戊二烯组成，（3）约5phr至约40phr的高乙烯基聚丁二烯橡胶。