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    • 21. 发明申请
    • Tire with tread of specialized trans 1,4-polybutadiene polymer and CIS 1,4-polyisoprene natural rubber
    • 专用反式1,4-聚丁二烯聚合物和CIS 1,4-聚异戊二烯天然橡胶的胎面轮胎
    • US20050245688A1
    • 2005-11-03
    • US10837740
    • 2004-05-03
    • Paul SandstromAdel HalasaWen-Liang HsuRoger BeersChad Jasiunas
    • Paul SandstromAdel HalasaWen-Liang HsuRoger BeersChad Jasiunas
    • B60C1/00C08K3/04C08K3/36C08L7/00C08L9/00C08L9/06C08L21/00
    • B60C1/0016C08K3/04C08K3/36C08L7/00C08L9/06C08L21/00C08L2666/02C08L2666/08
    • This invention relates to a tire with a tread of a natural rubber-rich rubber composition. A partial replacement of the natural rubber in the tire tread is accomplished by an inclusion of a relatively low Mooney viscosity specialized trans 1,4-polybutadiene. The tire tread rubber composition is comprised of a blend of the specialized trans 1,4-polybutadiene polymer and cis 1,4-polyisoprene natural rubber optionally together with at least one additional diene-based elastomer in which the natural rubber remains a major portion of the elastomers in the tread rubber composition. A significant aspect of the invention is a partial replacement of natural cis 1,4-polyisoprene rubber in the tread rubber composition. The specialized trans 1,4-polybutadiene polymer has a relatively low Mooney (ML1+4), 100° C., viscosity within a range of 25 to 55. The specialized trans 1,4-polybutadiene polymer has a weight average molecular weight (Mw) of less than 220,000, preferably within a range of from 100,000 to 220,000, a number average molecular weight (Mn) of less than 120,000, preferably within a range of from 60,000 to 120,000 and a microstructure comprised of a trans 1,4-isomeric unit content in a range of from 75 to 85 percent, a cis 1,4-isomeric unit content in a range of from 10 to 20 percent and a vinyl 1,2-content in a range of from 3 to 5 percent.
    • 本发明涉及具有天然橡胶丰富橡胶组合物的胎面的轮胎。 轮胎胎面中天然橡胶的部分替换通过包含相对较低的门尼粘度的特殊的反式1,4-聚丁二烯来实现。 轮胎胎面橡胶组合物由专门的反式1,4-聚丁二烯聚合物和顺式1,4-聚异戊二烯天然橡胶的混合物组成,任选地与至少一种另外的二烯基弹性体共混,其中天然橡胶保留主要部分 胎面橡胶组合物中的弹性体。 本发明的一个重要方面是在胎面橡胶组合物中部分替代天然顺式1,4-聚异戊二烯橡胶。 专用的反式1,4-聚丁二烯聚合物具有相对较低的门尼(ML1 + 4),100℃,粘度在25至55的范围内。专用的反式1,4-聚丁二烯聚合物具有重均分子量( Mw)小于220,000,优选在100,000至220,000的范围内,数均分子量(Mn)小于120,000,优选在60,000至120,000的范围内,以及由反式1,4- 异构单元含量在75至85%的范围内,顺式1,4-异构体单元含量在10至20%范围内,乙烯基1,2-含量在3至5%的范围内。
    • 22. 发明申请
    • Synthetic polyisoprene rubber
    • 合成聚异戊二烯橡胶
    • US20050137338A1
    • 2005-06-23
    • US10942517
    • 2004-09-16
    • Adel HalasaWen-Liang HsuAaron RybaJin-Ping ZhouChad JasiunasPaul Sandstrom
    • Adel HalasaWen-Liang HsuAaron RybaJin-Ping ZhouChad JasiunasPaul Sandstrom
    • B01J31/02B01J31/04B01J31/12B01J31/14B60C1/00C08F36/04C08L9/00C08L21/00C08F4/44B01J31/00C08F8/00
    • B01J31/143B01J31/04B60C1/0016C08F36/04C08L9/00C08L21/00C08F4/545C08F4/44C08L2666/08
    • The neodymium catalyst system prepared by the technique of this invention can be used in the polymerization of isoprene monomer into synthetic polyisoprene rubber having an extremely high cis-microstructure content and high stereo regularity. This polyisoprene rubber will crystallize under strain and can be compounded into rubber formulations in a manner similar to natural rubber. This invention more specifically discloses a process for preparing a neodymium catalyst system which comprises (1) reacting a neodymium carboxylate with an organoaluminum compound in an organic solvent to produce neodymium-aluminum catalyst component, and (2) subsequently reacting the neodymium-aluminum catalyst component with an elemental halogen to produce the neodymium catalyst system. The present invention further discloses a synthetic polyisoprene rubber which is comprised of repeat units that are derived from isoprene, wherein the synthetic polyisoprene rubber has a cis-microstructure content which is within the range of 98.0% to 99.5%, a 3,4-microstructure content which is within the range of 0.5% to 2.0%, and a trans-microstructure content which is within the range of 0.0% to 0.5%.
    • 通过本发明技术制备的钕催化剂体系可用于将异戊二烯单体聚合成具有非常高的顺式微结构含量和高立体规律性的合成聚异戊二烯橡胶。 该聚异戊二烯橡胶将在应变下结晶,并且可以以与天然橡胶相似的方式配合成橡胶制剂。 本发明更具体地公开了一种制备钕催化剂体系的方法,其包括:(1)使羧酸钕与有机铝化合物在有机溶剂中反应以制备钕 - 铝催化剂组分,和(2)随后使钕 - 铝催化剂组分 用元素卤素制备钕催化剂体系。 本发明还公开了一种合成聚异戊二烯橡胶,其由衍生自异戊二烯的重复单元组成,其中合成聚异戊二烯橡胶的顺式微结构含量在98.0%至99.5%的范围内,3,4-微结构 含量在0.5%至2.0%的范围内,反式微结构含量在0.0%至0.5%的范围内。
    • 27. 发明申请
    • Two-piece tire
    • 两件式轮胎
    • US20060130952A1
    • 2006-06-22
    • US11020889
    • 2004-12-22
    • Paul SandstromThomas Segatta
    • Paul SandstromThomas Segatta
    • B60C27/00
    • B60C11/02C08K3/012C08K5/05C08K5/101C08K5/20Y10T152/10495Y10T152/1081Y10T152/10855C08L21/00
    • The present invention relates to a two piece pneumatic tire comprising a carcass and a removable tread belt disposed radially about the periphery of the carcass, the tread belt and carcass meeting at an interface between a radially outermost surface of the carcass and a radially innermost surface of the tread belt, wherein at least one of the radially outermost surface of the carcass and the radially innermost surface of the tread belt comprise a self lubricating rubber composition, the self lubricating rubber composition comprising at least one rubber and from 1 to 50 phr of at least one additive selected from alcohols of formula I, esters of formula II, or amides of formula III wherein R1 and R2 are independently selected from C12-C36 alkyl, C12-C36 alkenyl, or C12-C36 alkadienyl.
    • 本发明涉及一种两件式充气轮胎,其包括胎体和沿胎体的周边径向设置的可移除胎面带,胎面带和胎体在胎体的径向最外表面与径向最内表面之间的界面处会聚, 所述胎面带,其中所述胎体的径向最外表面和所述胎面带的径向最内表面中的至少一个包括自润滑橡胶组合物,所述自润滑橡胶组合物包含至少一种橡胶和1至50phr的 选自式I的醇,式II的酯或式III的酰胺的至少一种添加剂,其中R 1和R 2独立地选自C 12 - C 13 -C 14烷基,C 12 -C 36亚烯基或C 12 -C 13亚烷基 > 36 二价。
    • 29. 发明申请
    • Tire with natural rubber rich tread and at least two additional rubber components with high reinforcing carbon blacks
    • 轮胎具有天然橡胶丰富的胎面和至少两个额外的橡胶组分与高强度炭黑
    • US20050209394A1
    • 2005-09-22
    • US11058791
    • 2005-02-16
    • Paul SandstromLeighton SpadoneJames Guzi
    • Paul SandstromLeighton SpadoneJames Guzi
    • B60C1/00C08K3/04C08K3/34C08K9/02C08L21/00
    • B60C1/0025B60C1/0016C08K3/04C08K9/02C08L21/00
    • The invention relates to pneumatic tires with a focus on pneumatic tires primarily intended for use in off-the-road service at relatively slow vehicular speeds, and to large truck tires, aircraft tires and agricultural tires and therefor not primarily focused on, and in one aspect intended to be exclusive of, passenger tires and particularly smaller passenger tires, wherein the elastomer composition of the treads, and at least two additional components, of such tires are of natural rubber rich rubber compositions composed, based upon the elastomers of the rubber compositions, of at least 45, alternately at least 75 weight percent cis 1,4-polyisoprene natural rubber. For this invention, the natural rubber rich treads and at least two additional natural rubber rich rubber components of such tires contain rubber reinforcing carbon blacks comprised primarily of high reinforcing, small particle size, carbon blacks. Silica reinforcement can also be used in combination with the high reinforcing carbon black for the natural rubber rich tire components.
    • 本发明涉及一种专注于主要用于以较慢的车辆速度的越野服务的充气轮胎的充气轮胎,以及大型卡车轮胎,飞机轮胎和农用轮胎,因此不主要集中在一个 客轮,特别是较小的乘客轮胎,其中胎面的弹性体组合物和这些轮胎的至少两个附加部件是天然橡胶丰富的橡胶组合物,其基于橡胶组合物的弹性体 ,至少45重量%,或至少75重量%的顺式1,4-聚异戊二烯天然橡胶。 对于本发明,这种轮胎的天然橡胶丰富的胎面和至少两个额外的天然橡胶丰富的橡胶组分包含主要由高增强,小粒径,炭黑组成的橡胶增强炭黑。 二氧化硅增强材料也可与高强度碳黑组合使用,用于天然橡胶丰富的轮胎组件。