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    • 11. 发明授权
    • Diene polymers having reduced hysteresis and improved raw viscosity
incorporating primary partial coupling and fused-ring polynuclear
aromatic terminators
    • 二烯聚合物具有降低的滞后和改进的原始粘度,其中包含初级部分偶联和稠环多核芳族终止子
    • US5210144A
    • 1993-05-11
    • US812172
    • 1991-12-20
    • David F. LawsonMark L. Stayer, Jr.Thomas A. Antkowiak
    • David F. LawsonMark L. Stayer, Jr.Thomas A. Antkowiak
    • C08C19/44
    • C08C19/44
    • Diene polymers or copolymers having improved raw polymer viscosity and reduced hysteresis in the cured and carbon black reinforced state 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 fused-ring polynuclear aromatic 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 fused-ring polynuclear aromatic compounds. The resultant diene polymers or copolymers have improved raw polymer viscosity and when compounded with carbon black and cured have reduced hysteresis properties. The polymers can be utilized to form elastomer compositions for tire treads having reduced rolling resistance.
    • 提供了在固化和炭黑增强状态下具有改进的原料聚合物粘度和降低的滞后的二烯聚合物或共聚物。 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,以及含有衍生自稠环多核芳族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是通过首先将一部分活性二烯聚合物或通过阴离子聚合得到的共聚物链与多卤化锡偶联剂偶联,然后使用稠环多核芳族化合物终止剩余的活性二烯聚合物或共聚物链来制备的。 所得二烯聚合物或共聚物具有改善的原始聚合物粘度,并且当与炭黑复合并固化时具有降低的滞后性能。 聚合物可用于形成具有降低的滚动阻力的轮胎胎面的弹性体组合物。
    • 13. 发明授权
    • Diene polymers and copolymers terminated by reaction with N-alkyl and
N-aryl imines
    • 通过与N-烷基和N-芳基亚胺反应终止二烯聚合物和共聚物
    • US5109907A
    • 1992-05-05
    • US732851
    • 1991-07-19
    • Mark L. Stayer, Jr.Thomas A. AntkowiakDavid F. LawsonRussell W. Koch
    • Mark L. Stayer, Jr.Thomas A. AntkowiakDavid F. LawsonRussell W. Koch
    • B60C1/00C08C19/44
    • C08C19/44B60C1/0016
    • A process is provided for preparing a terminally functionalized polymer from a living polymer obtained by anionic polymerization of a diene monomer or mixture of a diene monomer and a vinyl aromatic hydrocarbon monomer which comprises reacting the living polymer with a compound having the formula: ##STR1## wherein R.sub.1 and R.sub.2 are selected from the group consisting of H, alkyl, cycloalkyl, aryl, dialkylaminoaryl, aralkyl, and aprotic O, N and S- containing alkyl, cycloalkyl, aryl and aralkyl groups; wherein R.sub.3 is selected from the group consisting of alkyl, cycloalkyl, aryl, dialkylaminoaryl, aralkyl, and aprotic O, N and S- containing alkyl, cycloalkyl, aryl and aralkyl groups; with the proviso that at least one of the R.sub.1, R.sub.2 and R.sub.3 groups must be a dialkylaminoaryl group and that not all of the R.sub.1, R.sub.2 and R.sub.3 groups can be aryl groups.The resultant terminally functionalized polymer has reduced hysteresis properties and may be utilized to prepare elastomer compositions and tire treads having reduced rolling resistance.
    • 提供了一种通过二烯单体或二烯单体和乙烯基芳族烃单体的混合物的阴离子聚合获得的活性聚合物制备末端官能化聚合物的方法,其包括使活性聚合物与具有下式的化合物反应: 其中R 1和R 2选自H,烷基,环烷基,芳基,二烷基氨基芳基,芳烷基和非质子O,N和S-含烷基,环烷基,芳基和芳烷基; 其中R 3选自烷基,环烷基,芳基,二烷基氨基芳基,芳烷基和非质子O,N和S-含烷基,环烷基,芳基和芳烷基; 条件是R1,R2和R3基团中的至少一个必须是二烷基氨基芳基,并且不是所有的R 1,R 2和R 3基团都可以是芳基。 所得的末端官能化聚合物具有降低的滞后性能,并且可用于制备具有降低的滚动阻力的弹性体组合物和轮胎胎面。