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    • 1. 发明授权
    • Silica-filled tire tread stocks having reduced hysteresis
    • 二氧化硅填充轮胎胎面料具有减小的滞后
    • US06444734B1
    • 2002-09-03
    • US09723968
    • 2000-11-28
    • William L. HergenrotherWilliam M. ColeJames Oziomek
    • William L. HergenrotherWilliam M. ColeJames Oziomek
    • C08K515
    • C08K3/36B60C1/0016C08K5/151C08L21/00
    • A silica-filled, vulcanized elastomeric compound comprises 100 parts by weight of an elastomer; from about 5 to about 100 parts by weight of a reinforcing filler per 100 parts of elastomer, wherein the reinforcing fillers are selected from the group consisting of carbon black and silica filler; from 0 to about 20 percent by weight of a silane, based upon the weight of the silica filler; a cure agent; from about 0 to about 20 parts by weight of a processing aid selected from the group consisting of fatty acid esters of hydrogenated and non-hydrogenated C5 and C6 sugars; from about 0 to about 20 parts by weight of a processing aid selected from the group consisting of polyoxyethylene derivatives of fatty acid esters of hydrogenated and non-hydrogenated C5 and C6 sugars; from about 0 to about 40 parts by weight of an additional filler other than silica or carbon black, with the provisos that at least one of the processing aids or additional fillers are present; that if the processing aid is sorbitan monooleate, then at least one of the polyoxyethylene derivatives or additional fillers is also present and, that the minimal amount for each processing aid and additional filler, if present, is about one part by weight. A process for the preparation of silica filled vulcanizable elastomers is provided as well as pneumatic tires employing tread stock comprising the novel vulcanizable elastomers.
    • 二氧化硅填充的硫化弹性体混合物包含100重量份的弹性体; 每100份弹性体约5至约100重量份的增强填料,其中所述增强填料选自炭黑和二氧化硅填料; 0至约20重量%的硅烷,基于二氧化硅填料的重量; 治愈剂; 约0至约20重量份的选自氢化和非氢化C5和C6糖的脂肪酸酯的加工助剂; 约0至约20重量份的选自氢化和非氢化C5和C6糖的脂肪酸酯的聚氧乙烯衍生物的加工助剂; 约0至约40重量份的除二氧化硅或炭黑之外的另外的填料,条件是存在至少一种加工助剂或另外的填料; 如果加工助剂是脱水山梨糖醇单油酸酯,那么还存在至少一种聚氧乙烯衍生物或另外的填料,并且每种加工助剂和另外的填料(如果存在的话)的最小量为约1重量份。 提供了制备二氧化硅填充的可硫化弹性体的方法,以及使用包含新型可硫化弹性体的胎面胶料的充气轮胎。
    • 2. 发明授权
    • Diene polymers and copolymers incorporating partial coupling and terminals formed from hydrocarboxysilane compounds
    • 二烯聚合物和共聚物结合部分偶联和由烃基甲硅烷化合物形成的末端
    • US06228908B1
    • 2001-05-08
    • US09229025
    • 1999-01-12
    • Hideo TakeichiDaniel F. GravesSunil B. SarkarDavid F. LawsonWilliam L. HergenrotherWilliam M. ColeJames Oziomek
    • Hideo TakeichiDaniel F. GravesSunil B. SarkarDavid F. LawsonWilliam L. HergenrotherWilliam M. ColeJames Oziomek
    • C08K515
    • C08L7/00B60C1/0016C08C19/44C08K3/36C08K5/151C08K5/1535C08L9/00C08L9/06C08L15/00C08L19/006Y02T10/862C08L21/00C08L2666/08
    • Diene polymers or copolymers having improved balance between raw polymer viscosity and mixed compound viscosity, useful in tire tread compositions having highly balanced wet traction, rolling resistance, and traction in ice and snow, and fracture properties in the cured and white carbon reinforced states are provided. These diene polymers or copolymers comprise a mixture of diene polymer or copolymer chains containing carbon-tin bonds in the main polymer or copolymer chains and diene polymer or copolymer chains containing terminals derived from hydrocarboxysilane compounds. The diene polymer or copolymers are prepared by first coupling a portion of the living diene polymer or copolymer chains obtained by anionic polymerization using a tin polyhalide coupling agent and then terminating the remaining living diene polymer or copolymer chains using hydrocarboxysilane compounds. The resultant diene polymers or copolymers have improved balance between raw polymer viscosity and mixed compound viscosity when compounded with silica and/or carbon black and cured compositions are useful in tire tread having highly balanced wet traction, rolling resistance, and traction in ice and snow. The polymers can be utilized to form elastomer compositions for tire treads having balanced properties of reduced rolling resistance and wet traction and handling or balanced properties of wet traction and handling and traction in snow and ice.
    • 本发明提供了在具有高均衡湿牵引力,滚动阻力和冰雪牵引力的轮胎胎面组合物中有用的原始聚合物粘度和混合化合物粘度之间的改进平衡的二烯聚合物或共聚物,以及固化和白色碳增强状态下的断裂性能 。 这些二烯聚合物或共聚物包含在主聚合物或共聚物链中含有碳 - 锡键的二烯聚合物或共聚物链的混合物,以及含有衍生自烃基甲硅烷化合物的末端的二烯聚合物或共聚物链。二烯聚合物或共聚物通过首先将 通过使用多卤化锡偶合剂的阴离子聚合得到的活性二烯聚合物或共聚物链的一部分,然后使用烃基甲硅烷化合物终止剩余的活性二烯聚合物或共聚物链。 所得到的二烯聚合物或共聚物在与二氧化硅和/或炭黑混合时与原料聚合物粘度和混合化合物粘度之间具有改善的平衡,并且固化的组合物可用于具有高均衡的湿牵引力,滚动阻力和在冰雪中的牵引力的轮胎胎面。 聚合物可用于形成用于轮胎胎面的弹性体组合物,其具有降低的滚动阻力和湿牵引力和处理性能的平衡性能或湿牵引和处理以及雪和冰中牵引的平衡性能。
    • 10. 发明授权
    • Processability of silica-filled rubber stocks
    • 二氧化硅填充橡胶原料的加工性能
    • US06790889B2
    • 2004-09-14
    • US10095604
    • 2002-03-11
    • William L. HergenrotherAshley S. HiltonWilliam M. ColeJames Oziomek
    • William L. HergenrotherAshley S. HiltonWilliam M. ColeJames Oziomek
    • C08C524
    • C08K5/5419B60C1/0016C08K3/36C08K5/0008C08K5/103C08K5/151C08K5/1535C08K9/12Y10T152/10855C08L21/00
    • The present invention provides silica-filled, vulcanized elastomeric compounds comprising an elastomer mixed with at least a silica filler, a processing aid, and a curing agent, and processes for the preparation of the same. Generally, the present invention provides processing aids which effectively reduce or replace the amount (i.e., about 10 percent by weight based upon the silica filler) of the processing aid bis[3-triethyoxysilyl)propyl]tetrasulfide (“Si69”) used in the production of silica-filled rubber stocks. These new processing aids include alkyl alkoxysilanes, fatty acid esters of hydrogenated and non-hydrogenated sugars and the polyoxyethylene derivatives thereof, and combinations thereof, with or without various non-reinforcing fillers such as mineral fillers. The processing aids do not hinder the physical properties of the compounds and have been found to be excellent substitutes for Si69. The processing aids may be supported on the silica filler or any of the other fillers employed in the composition for improved handling, safety and performance. Processes for the preparation of the silica filled vulcanizable elastomers are provided as well as pneumatic tires employing tread stock comprising the novel vulcanizable elastomers.
    • 本发明提供二氧化硅填充的硫化弹性体化合物,其包含与至少二氧化硅填料混合的弹性体,加工助剂和固化剂,及其制备方法。 通常,本发明提供加工助剂,其有效地减少或替代加工助剂双[3-三乙氧基甲硅烷基]丙基]四硫化物(“Si69”)的量(即,基于二氧化硅填料的约10重量%) 生产二氧化硅填充橡胶原料。 这些新的加工助剂包括烷基烷氧基硅烷,氢化和非氢化的糖的脂肪酸酯及其聚氧乙烯衍生物,以及它们的组合,与或不同的各种非增强填料如矿物填料。 加工助剂不妨碍化合物的物理性能,并且已被发现是Si69的优良替代物。 加工助剂可以负载在二氧化硅填料或用于组合物中的任何其它填料以提高处理,安全性和性能。 提供用于制备二氧化硅填充的可硫化弹性体的方法以及使用包含新型可硫化弹性体的胎面胶料的充气轮胎。