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

    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。

    Tire tread compositions containing asymmetrically tin-coupled
polybutadiene rubber and silica coupling agent
    3.
    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

    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。

    WIRE COAT COMPOSITIONS FOR RUBBER ARTICLES
    7.
    发明申请
    WIRE COAT COMPOSITIONS FOR RUBBER ARTICLES 审中-公开
    橡胶制品的线套组合物

    公开(公告)号:US20120073720A1

    公开(公告)日:2012-03-29

    申请号:US12892204

    申请日:2010-09-28

    IPC分类号: B60C9/18 B60C15/00 C08L97/00

    摘要: The present invention is based upon the unexpected finding that lignin can be incorporated into wire coat stock composition to improve metal to rubber adhesion. It has been further found that lignin can be used as a replacement in whole or in part for conventional rubber-to-metal adhesion promoters, such as cobalt materials which are conventionally used in wire coat stocks to attain and maintain needed rubber-to-wire adhesion properties. In fact, wire coat stocks that contain lignin provide more that adequate rubber-to-metal adhesion characteristics for typical applications, such as in tires, and maintain needed levels of adhesion over long periods of product service. For instance, high levels of rubber-to-metal adhesion are maintained under harsh conditions, such as exposure to elevated temperatures and high levels of humidity. The utilization of lignin in wire coat stock formulations in accordance with this invention is also economically advantageous since lignin is a low cost alternative to most conventional adhesion promoting agents. Lignin is also environmentally friendly and does not present any known health hazards. Lignin is derived from wood and constitutes about 25 percent to 33 percent of the dry mass of wood. Accordingly, lignin is an abundant naturally occurring organic polymer which is a renewable resource since it is derived from trees. Accordingly, lignin represents a low cost, abundant, environmentally friendly, and highly effective alternative to conventional rubber-to-metal adhesion promoters. The present invention more specifically discloses a wire coat stock composition which is comprised of (1) a rubbery polymer, (2) about 40 phr to about 80 phr of carbon black, and (3) about 2 phr to about 30 phr of lignin.

    摘要翻译: 本发明基于意想不到的发现,即木质素可以结合到线涂料组合物中以改善金属与橡胶的粘合性。 进一步发现,木质素可以全部或部分地用作常规橡胶 - 金属粘合促进剂的替代物,例如通常用于丝线涂料中的钴材料以获得并保持所需的橡胶对线 粘附性能。 事实上,含有木质素的丝线涂料可为典型应用(如轮胎)提供更好的橡胶 - 金属粘合特性,并在长时间的产品服务中保持所需的粘合水平。 例如,在苛刻的条件下,例如暴露于升高的温度和高的湿度水平下,保持高水平的橡胶 - 金属粘附。 根据本发明的线涂料配方中木质素的利用也是经济上有利的,因为木质素是大多数常规粘合促进剂的低成本替代物。 木质素也是环保的,没有任何已知的健康危害。 木质素来自木材,占木材干质量的约25%至33%。 因此,木质素是丰富的天然存在的有机聚合物,它是一种可再生资源,因为它是从树木中获得的。 因此,木质素代表常规橡胶 - 金属粘合促进剂的低成本,丰富,环保且高效的替代方案。 本发明更具体地公开了一种线涂料组合物,其包含(1)橡胶状聚合物,(2)约40phr至约80phr的炭黑和(3)约2phr至约30phr的木质素。

    Silica-reinforced tire tread rubber
    8.
    发明授权
    Silica-reinforced tire tread rubber 失效
    二氧化硅增强轮胎胎面橡胶

    公开(公告)号:US06350807B1

    公开(公告)日:2002-02-26

    申请号:US09616270

    申请日:2000-07-14

    IPC分类号: C08K334

    摘要: The present invention relates to a tire tread compound that is highly loaded with silica. This compound offers the advantages of silica compounding without the need for solution SBR. More specifically, the tire tread rubber formulations of this invention offer an excellent combination of traction, treadwear and rolling resistance characteristics. The subject invention 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; wherein the tread is comprised of (1) 5 phr to 40 phr of a polyisoprene rubber selected from the group consisting of natural rubber and synthetic polyisoprene, (2) 20 phr to 60 phr of high vinyl polybutadiene rubber having a glass transition temperature which is within the range of −40° C. to 10° C., (3) 20 phr to 60 phr of tin-coupled isoprene-butadiene rubber having a glass transition temperature which is within the range of −90° C. to −70° C., (4) 30 phr to 90 phr of silica, (5) 5 phr to 50 phr of carbon black, (6) 2 phr to 50 phr of processing oil and (7) 0.5 phr to 15 phr of a silica coupling agent.

    摘要翻译: 本发明涉及高度负载二氧化硅的轮胎胎面胶。 该化合物具有二氧化硅复合的优点,无需溶液SBR。 更具体地,本发明的轮胎胎面橡胶配方提供牵引力,胎面磨损和滚动阻力特性的优异组合。 本发明公开了一种轮胎,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以及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(1)5phr至40phr的选自天然橡胶和合成聚异戊二烯的聚异戊二烯橡胶,(2)20phr至60phr的玻璃化转变温度为20phr至60phr的高乙烯基聚丁二烯橡胶 在-40℃至10℃的范围内,(3)20phr至60phr的锡偶合异戊二烯 - 丁二烯橡胶,其玻璃化转变温度在-90℃至-70℃的范围内 (4)30phr至90phr的二氧化硅,(5)5phr至50phr的炭黑,(6)2phr至50phr的加工油和(7)0.5phr至15phr的二氧化硅 偶联剂。

    Non-random styrene-butadiene rubber
    9.
    发明授权
    Non-random styrene-butadiene rubber 失效
    无规丁苯橡胶

    公开(公告)号:US07064171B1

    公开(公告)日:2006-06-20

    申请号:US11232685

    申请日:2005-09-22

    IPC分类号: C08F236/10

    摘要: The present invention reveals a tire having a tread that is comprised of (1) 30 phr to 80 phr of a non-random styrene-butadiene rubber comprised of polymer chains that are derived from styrene and 1,3-butadiene, wherein from about 10 weight percent to about 50 weight percent of the repeat units in the styrene-butadiene rubber are derived from styrene, wherein from about 60 weight percent to about 90 weight percent of the repeat units in the styrene-butadiene rubber are derived from 1,3-butadiene, wherein from about 30 weight percent to about 50 weight percent of the styrene repeat units are in sequences containing 5 to 20 styrene repeat units, wherein the bound styrene content found in the first half of the polymer chains differs from the bound styrene content found in the second half of the polymer chains by at least 5 weight percent, wherein the styrene-butadiene rubber has a 1,2-vinyl content which is within the range of about 8 percent to about 20 percent, wherein the styrene-butadiene rubber has a number average molecular weight which is within the range of 200,000 to 475,000, and wherein the styrene-butadiene rubber has a glass transition temperature which is within the range of −82° C. to −50° C. and (2) 20 phr to 70 phr of polybutadiene. The tire tread formulation can optionally contain silica and lignin.

    摘要翻译: 本发明揭示了具有胎面的轮胎,该胎面由(1)30phr至80phr由衍生自苯乙烯和1,3-丁二烯的聚合物链组成的非无规丁苯橡胶组成,其中约10 苯乙烯 - 丁二烯橡胶中重复单元的重量百分比至约50重量%衍生自苯乙烯,其中苯乙烯 - 丁二烯橡胶中重复单元的约60重量%至约90重量% 丁二烯,其中约30重量%至约50重量%的苯乙烯重复单元是含有5至20个苯乙烯重复单元的序列,其中在聚合物链的前半部分中发现的结合苯乙烯含量与发现的结合的苯乙烯含量不同 在所述聚合物链的后半部分中至少5重量%,其中所述苯乙烯 - 丁二烯橡胶具有在约8%至约20%范围内的1,2-乙烯基含量,其中所述苯乙烯 - 丁二烯 iene橡胶的数均分子量在200,000至475,000的范围内,其中丁苯橡胶的玻璃化转变温度在-82℃至-50℃的范围内,(2 )20phr至70phr的聚丁二烯。 轮胎胎面配方可任选地含有二氧化硅和木质素。

    Tread rubber for high traction tires
    10.
    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

    IPC分类号: C08J510

    摘要: 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.

    摘要翻译: 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。