Tread rubber for high traction tires
    1.
    发明授权
    Tread rubber for high traction tires 有权
    轮胎橡胶用于高牵引轮胎

    公开(公告)号:US06670416B1

    公开(公告)日:2003-12-30

    申请号:US09616271

    申请日:2000-07-14

    CPC classification number: C08K3/04 B60C1/0016 C08L9/00 Y02T10/862 C08L2666/08

    Abstract: In tire tread formulations, blends of rubbers having low and high glass transition temperatures have significant advantages over blends made with rubbers having intermediate glass transition temperatures. However, blends of rubbers having low and high glass transition temperatures exhibit poor processability. This invention deals with improving the processability of tire tread formulations which are made by blending rubbers having both low and high glass transition temperatures that offer ultra low rolling resistance without sacrificing rolling resistance or tread wear characteristics. This invention more specifically discloses a tire tread rubber composition which is comprised of (a) about 60 phr to about 90 phr of a high cis-1,4-polybutadiene rubber, wherein the high cis-1,4-polybutadiene rubber has a glass transition temperature which is within the range of about −104° C. to about −80° C., (b) about 10 phr to about 40 phr of at least one additional rubbery polymer selected from the group consisting of polyisoprene rubber, polybutadiene rubber and styrene-isoprene-butadiene rubber, wherein the additional rubbery polymer has a glass transition temperature which is within the range of about −30° C. to about −10° C. isoprene-butadiene rubber, (c) about 20 phr to about 60 phr of carbon black, wherein the carbon black has a DBP absorption value of at least 140 cm3/100 grams and wherein the carbon black has a CTAB adsorption area which is within the range of about 60 to about 90.

    Abstract translation: 在轮胎胎面配方中,具有低和高玻璃化转变温度的橡胶的共混物比具有中间玻璃化转变温度的橡胶制成的混合物具有显着的优点。 然而,具有低玻璃化转变温度和高玻璃化转变温度的橡胶的混合物表现出差的加工性能。 本发明涉及改善轮胎胎面配方的加工性能,其通过混合具有低和高玻璃化转变温度的橡胶制成,其提供超低滚动阻力而不牺牲滚动阻力或胎面磨损特性。 本发明更具体地公开了一种轮胎胎面橡胶组合物,其由(a)约60phr至约90phr的高顺式-1,4-聚丁二烯橡胶组成,其中高顺式-1,4-聚丁二烯橡胶具有玻璃 转变温度在约-104℃至约-80℃的范围内,(b)约10phr至约40phr的至少一种另外的橡胶状聚合物,其选自聚异戊二烯橡胶,聚丁二烯橡胶 和苯乙烯 - 异戊二烯 - 丁二烯橡胶,其中所述另外的橡胶状聚合物的玻璃化转变温度在约-30℃至约-10℃的范围内。异戊二烯 - 丁二烯橡胶,(c)约20phr至约 60phr的炭黑,其中炭黑具有至少140cm 3/100克的DBP吸收值,并且其中炭黑的CTAB吸附面积在约60至约90的范围内。

    Tire tread compositions containing asymmetrically tin-coupled
polybutadiene rubber
    2.
    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

    Abstract: 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.

    Abstract translation: 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。

    Tire tread compositions containing asymmetrically tin-coupled
polybutadiene rubber and silica coupling agent
    5.
    发明授权
    Tire tread compositions containing asymmetrically tin-coupled polybutadiene rubber and silica coupling agent 失效
    含有不对称锡偶联聚丁二烯橡胶和二氧化硅偶联剂的轮胎胎面组合物

    公开(公告)号:US6017988A

    公开(公告)日:2000-01-25

    申请号:US366236

    申请日:1999-08-03

    Abstract: 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.

    Abstract translation: 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。

    Tread rubber for high traction tires
    6.
    发明授权
    Tread rubber for high traction tires 失效
    轮胎橡胶用于高牵引轮胎

    公开(公告)号:US06988523B2

    公开(公告)日:2006-01-24

    申请号:US10681516

    申请日:2003-10-08

    CPC classification number: C08K3/04 B60C1/0016 C08L9/00 Y02T10/862 C08L2666/08

    Abstract: This invention discloses a pneumatic 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; wherein the tread is comprised of (a) about 60 phr to about 90 phr of a cis-1,4-polybutadiene rubber, wherein the cis-1,4-polybutadiene rubber has a glass transition temperature which is within the range of about −104° C. to about −80° C., (b) about 10 phr to about 40 phr of at least one additional rubbery polymer selected from the group consisting of polyisoprene rubber, polybutadiene rubber, isoprene-butadiene rubber, and styrene-isoprene-butadiene rubber, wherein the additional rubbery polymer has a glass transition temperature which is within the range of about −30° C. to about −10° C., and (c) about 20 phr to about 60 phr of carbon black, wherein the carbon black has a dibutylphthalate absorption value of at least 140 cm3/100 grams and wherein the carbon black has a cetyl trimethyl ammonium bromide adsorption area which is within the range of about 60 to about 90.

    Abstract translation: 本发明公开了一种充气轮胎,其由具有外周胎面的大致环形胎体,两个隔开的胎圈,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侧壁构成; 其中所述胎面适于与地面接触; 其中胎面由(a)约60phr至约90phr的顺式-1,4-聚丁二烯橡胶组成,其中顺式-1,4-聚丁二烯橡胶的玻璃化转变温度在约 - 104℃至约-80℃,(b)约10phr至约40phr的至少一种另外的选自聚异戊二烯橡胶,聚丁二烯橡胶,异戊二烯 - 丁二烯橡胶和苯乙烯 - 异戊二烯的橡胶状聚合物 丁二烯橡胶,其中所述另外的橡胶状聚合物的玻璃化转变温度在约-30℃至约-10℃的范围内,和(c)约20phr至约60phr的炭黑,其中 炭黑具有至少140cm 3 / 100g的邻苯二甲酸二丁酯吸收值,并且其中炭黑具有在约60至约90的范围内的十六烷基三甲基溴化铵吸附区域。

    Retreaded tire having tread with oil rich rubber-based adhesive
    7.
    发明授权
    Retreaded tire having tread with oil rich rubber-based adhesive 失效
    具有胎面的翻新轮胎具有富含油的橡胶基粘合剂

    公开(公告)号:US06397910B1

    公开(公告)日:2002-06-04

    申请号:US09481892

    申请日:2000-01-12

    CPC classification number: C09J107/00 B29D30/56 C08K5/01 C08L7/00

    Abstract: A retreaded tire comprised of a tread and carcass with an intervening rubber layer, conventionally referred to as a cushion, wherein the tread has an oil rich rubber-based adhesive on its inner surface at the interface between said tread and cushion. Said oil rich rubber based adhesive is free, or substantially free, of volatile organic compounds, particularly volatile organic solvents. Alternately, the oil-rich rubber-based adhesive may contain oil and volatile organic solvent wherein oil is the major component insofar as the oil and solvent is concerned.

    Abstract translation: 一种由胎面和胎体组成的翻新轮胎,具有中间橡胶层,通常称为衬垫,其中胎面在其位于所述胎面和衬垫之间的界面处的内表面上具有富含油的橡胶基粘合剂。 所述富油橡胶基粘合剂是挥发性有机化合物,特别是挥发性有机溶剂的游离或基本上不含的。 或者,富含油的橡胶基粘合剂可以含有油和挥发性有机溶剂,其中油是关于油和溶剂的主要成分。

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