Process for Brominating Butadiene Polymers
    1.
    发明申请
    Process for Brominating Butadiene Polymers 审中-公开
    溴化丁二烯聚合物工艺

    公开(公告)号:US20130079472A1

    公开(公告)日:2013-03-28

    申请号:US13697709

    申请日:2011-05-26

    IPC分类号: C08F8/20

    CPC分类号: C08F8/20 C08C19/12 C08C19/14

    摘要: Butadiene polymers are brominated using tetraethylammonium tribromide as the brominating agent. The bromination is performed in a solvent for the starting polymer and for the tetraethylammonium bromide that is formed as a reaction byproduct. The process proceeds easily under mild conditions. In some cases, a solution of the brominated polymer and the tetraethylammonium monobromide is produced; this solution separates into a layer that contains the brominated polymer and another layer that contains most or all of the tetraethylammonium monobromide salt. In other cases, the brominated polymer precipitates from the reaction mixture and is separated from the tetraethylammonium monobromide salt in that manner. This process therefore permits the tetraethylammonium monobromide reaction by-product to be separated easily from the brominated product, and allows aqueous washing steps to be reduced or eliminated.

    摘要翻译: 使用四乙基三溴化铵作为溴化剂溴化丁二烯聚合物。 溴化在起始聚合物的溶剂和作为反应副产物形成的四乙基溴化铵中进行。 该过程在温和条件下容易进行。 在一些情况下,产生溴化聚合物和四乙基单溴化铵的溶液; 该溶液分离成含有溴化聚合物的层和含有大部分或全部四乙铵单溴化物盐的另一层。 在其他情况下,溴化聚合物从反应混合物中沉淀,并以这种方式与四乙铵单溴化物盐分离。 因此,该方法允许四溴化铵一溴化物反应副产物容易从溴化产物中分离,并且可以减少或消除含水洗涤步骤。

    PROCESS FOR BROMINATING UNSATURATED ORGANIC COMPOUNDS WITH REMOVAL OF QUATERNARY AMMONIUM OR QUATERNARY PHOSPHONIUM MONOCHLORIDES
    6.
    发明申请
    PROCESS FOR BROMINATING UNSATURATED ORGANIC COMPOUNDS WITH REMOVAL OF QUATERNARY AMMONIUM OR QUATERNARY PHOSPHONIUM MONOCHLORIDES 有权
    去除不饱和有机化合物的方法除去季铵盐或季铵盐单磷酸盐

    公开(公告)号:US20120016088A1

    公开(公告)日:2012-01-19

    申请号:US13257999

    申请日:2010-02-02

    IPC分类号: C08F8/20 C08F299/00

    摘要: Unsaturated organic compounds are brominated with a quaternary ammonium tribromide or a quaternary phosphonium tribromide, especially when the bromination is conducted in a chlorinated solvent. A quaternary ammonium or quaternary phosphonium monobromide salt is produced in the reaction, together with some amount of quaternary ammonium or quaternary phosphonium monochloride salt. The monochloride salt is converted to the corresponding quaternary ammonium monobromide salt by reacting it with a source of bromide ions. The monobromide salt is then reacted with bromine to regenerate the quaternary ammonium or phosphonium tribromide, which is recycled into the bromination reaction. This process reduces the amount of chlorine that is incorporated into the brominated product.

    摘要翻译: 不饱和有机化合物用三溴化季铵或三溴化鏻溴化,特别是当在氯化溶剂中进行溴化时。 在反应中产生季铵或季鏻一溴盐以及一定量的季铵或季鏻一盐酸盐。 通过使其与溴离子源反应,将一氯盐转化成相应的季铵单溴化物盐。 然后将单溴化物盐与溴反应以再生季铵或三溴化磷,将其再循环进入溴化反应。 该方法减少了加入到溴化产物中的氯的量。

    PROCESS FOR BROMINATING BUTADIENE POLYMERS USING ESTER SOLVENT MIXTURES
    8.
    发明申请
    PROCESS FOR BROMINATING BUTADIENE POLYMERS USING ESTER SOLVENT MIXTURES 有权
    使用酯类溶剂混合物研磨二苯乙烯聚合物的方法

    公开(公告)号:US20140121330A1

    公开(公告)日:2014-05-01

    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: C08F236/10

    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。

    Process for brominating butadiene copolymers by the addition of water or certain solvents
    9.
    发明授权
    Process for brominating butadiene copolymers by the addition of water or certain solvents 有权
    通过加入水或某些溶剂来溴化丁二烯共聚物的方法

    公开(公告)号:US08193287B2

    公开(公告)日:2012-06-05

    申请号:US12866992

    申请日:2009-02-25

    申请人: David B. Gorman

    发明人: David B. Gorman

    IPC分类号: C08F8/20

    摘要: Butadiene copolymers are brominated using certain quaternary ammonium tribromides as the brominating agent. The bromination process proceeds easily under mild conditions, and produces a brominated product that has excellent thermal stability. A quaternary ammonium monobromide salt is produced as a reaction by-product. A solvent for the monobromide salt is added to the reaction after 25-90% bromination of the aliphatic carbon-carbon double bonds. This provides for significantly shorter reaction times while providing a product with few impurities.

    摘要翻译: 使用某些季铵三溴化物作为溴化剂溴化丁二烯共聚物。 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。 产生作为反应副产物的季铵单溴化物盐。 在脂肪族碳 - 碳双键25-90%溴化后,向反应物中加入一溴化物的溶剂。 这提供了显着更短的反应时间,同时提供少量杂质的产物。

    Process for brominating butadiene polymers using ester solvent mixtures
    10.
    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。