Process for brominating butadiene polymers using ester solvent mixtures
    24.
    发明授权
    Process for brominating butadiene polymers using ester solvent mixtures 有权
    使用酯溶剂混合物溴化丁二烯聚合物的方法

    公开(公告)号:US08779066B2

    公开(公告)日:2014-07-15

    申请号:US13131603

    申请日:2009-12-07

    申请人: David B. Gorman

    发明人: David B. Gorman

    IPC分类号: C08F36/06 C08C19/12 C08F36/16

    摘要: Butadiene copolymers are brominated using certain quaternary ammonium or phosphonium tribromides as the brominating agent. The bromination is performed in solution in a mixture of n-butyl acetate and ethyl acetate. The bromination process proceeds easily under mild conditions, and produces a brominated product that has excellent thermal stability.

    摘要翻译: 使用某些季铵或三溴化磷作为溴化剂溴丁二烯共聚物。 溴化反应在乙酸正丁酯和乙酸乙酯的混合溶液中进行。 溴化过程在温和条件下容易进行,并产生具有优异热稳定性的溴化产物。

    RUBBER COMPOSITION AND PNEUMATIC TIRE
    27.
    发明申请
    RUBBER COMPOSITION AND PNEUMATIC TIRE 审中-公开
    橡胶组合物和气动轮胎

    公开(公告)号:US20120065317A1

    公开(公告)日:2012-03-15

    申请号:US13298627

    申请日:2011-11-17

    申请人: Gabor Kaszas

    发明人: Gabor Kaszas

    摘要: The present invention is directed to a method of making a rubber composition, comprising the steps of A) obtaining a diene-based elastomer selected from the group consisting of natural rubber, synthetic polyisoprene, polybutadiene, solution polymerized styrene-butadiene rubber (SSBR), and emulsion polymerized styrene-butadiene rubber (ESBR); B) mixing the diene-based elastomer with a halogenating agent to form an intermediate elastomer; and C) mixing the intermediate elastomer with a carbon black. There is further disclosed a rubber composition made by the foregoing method, and a pneumatic tire comprising the rubber composition.

    摘要翻译: 本发明涉及一种制备橡胶组合物的方法,包括以下步骤:A)获得选自天然橡胶,合成聚异戊二烯,聚丁二烯,溶液聚合的丁苯橡胶(SSBR),聚苯乙烯 - 丁二烯橡胶 和乳液聚合苯乙烯 - 丁二烯橡胶(ESBR); B)将二烯基弹性体与卤化剂混合以形成中间弹性体; 和C)将中间弹性体与炭黑混合。 还公开了通过上述方法制备的橡胶组合物和包含橡胶组合物的充气轮胎。

    Process for recovering brominated butadiene polymers from solution
    28.
    发明授权
    Process for recovering brominated butadiene polymers from solution 有权
    从溶液中回收溴化丁二烯聚合物的方法

    公开(公告)号:US08058389B2

    公开(公告)日:2011-11-15

    申请号:US12146636

    申请日:2008-06-26

    IPC分类号: C08F6/00 C08J3/00

    摘要: Brominated polybutadiene polymers are recovered from a bromination reaction solution by forming the solution into droplets, thermally stripping the solvent from the droplets, and then washing the resulting particles. The washed particles are then recovered from the washing liquid. The droplets can be dispersed into a gaseous medium such as air and then transferred into a nonsolvent liquid for washing, or can be formed directly into the nonsolvent liquid. The process forms a particulate polymer material that is easily filterable and has low levels of volatile impurities and inorganic salts. Brominated polybutadiene polymers recovered in this manner are often very thermally stable.

    摘要翻译: 从溴化反应溶液中回收溴化聚丁二烯聚合物,通过将溶液形成液滴,从液滴中热溶解溶剂,然后洗涤所得颗粒。 然后从洗涤液中回收经洗涤的颗粒。 液滴可以分散到气体介质如空气中,然后转移到非溶剂液体中进行洗涤,或者可以直接形成非溶剂液体。 该方法形成易于过滤并且具有低水平的挥发性杂质和无机盐的颗粒聚合物材料。 以这种方式回收的溴化聚丁二烯聚合物通常是非常热稳定的。