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36 条记录 (耗时 0.036 秒)

    In-line process for generating comonomer
    31.
    发明授权
    In-line process for generating comonomer 失效
    产生共聚单体的在线方法

    公开(公告)号：US07982085B2

    公开(公告)日：2011-07-19

    申请号：US11518456

    申请日：2006-09-08

    申请人： John Scott Buchanan ,  Timothy D. Shaffer ,  James R. Lattner ,  John F. Walzer

    发明人： John Scott Buchanan ,  Timothy D. Shaffer ,  James R. Lattner ,  John F. Walzer

    IPC分类号： C07C2/22

    CPC分类号： C07C2/32 ,  C07C2/36 ,  C07C2531/22 ,  C07C2531/24 ,  Y02P20/52 ,  C07C11/02

    摘要： The present invention relates to an in-line method for generating comonomer from monomer, such as ethylene. The comonomer generated is directly transported, without isolation or storage, to a polyethylene polymerization reactor. The in-line method includes the steps of providing an in-line comonomer synthesis reactor and a downstream gas/liquid phase separator prior to the polymerization reactor; feeding ethylene monomer and a catalyst in a solvent and/or diluent to the comonomer synthesis reactor; reacting the ethylene monomer and the catalyst in solvent and/or diluent under reaction conditions to produce an effluent stream including ethylene monomer and comonomer; passing the effluent stream from the comonomer synthesis reactor to the downstream gas/liquid phase separator to separate a gas stream from a bottom stream, wherein the gas stream is a mixture of ethylene monomer and comonomer; and passing the gas stream to the polymerization reactor to provide the necessary comonomer input.

    摘要翻译： 本发明涉及从单体如乙烯生成共聚单体的在线方法。 生成的共聚单体直接输送到聚乙烯聚合反应器中，无需隔离或储存。 在线方法包括在聚合反应器之前提供在线共聚单体合成反应器和下游气/液相分离器的步骤; 将乙烯单体和催化剂在溶剂和/或稀释剂中加入到共聚单体合成反应器中; 在反应条件下使乙烯单体和催化剂在溶剂和/或稀释剂中反应以产生包括乙烯单体和共聚单体的流出物流; 将来自共聚单体合成反应器的流出物流输送到下游气/液相分离器以从底部流分离气流，其中气流是乙烯单体和共聚单体的混合物; 并将气流送入聚合反应器以提供所需的共聚单体输入。

    Carbocationic catalysts and process for using said catalysts
    35.
    发明授权
    Carbocationic catalysts and process for using said catalysts 失效
    羧酸催化剂和使用所述催化剂的方法

    公开(公告)号：US5418303A

    公开(公告)日：1995-05-23

    申请号：US263104

    申请日：1994-06-21

    申请人： Timothy D. Shaffer

    发明人： Timothy D. Shaffer

    IPC分类号： B01J31/02 ,  B01J31/12 ,  B01J31/14 ,  C08F4/44

    CPC分类号： B01J31/0212 ,  B01J31/0231 ,  Y10S526/943

    摘要： A carbocationic catalyst composition comprising an initiator of water, a tertiary alkyl or aralkyl halide, ester, ether, carboxylic acid, acid halide or a polymeric halide and a co-initiator of an alkoxy metal halide, is used to produce narrow molecular weight distribution olefin polymers particularly isobutylene/para-methyl-styrene copolymers.

    摘要翻译： 使用包含水的引发剂，叔烷基或芳烷基卤化物，酯，醚，羧酸，酰卤或聚合卤化物和烷氧基金属卤化物的共引发剂的碳阳离子催化剂组合物来制备窄分子量分布烯烃 聚合物特别是异丁烯/对甲基苯乙烯共聚物。

    Carbocationic catalysts and process for using said catalysts
    36.
    发明授权
    Carbocationic catalysts and process for using said catalysts 失效
    羧酸催化剂和使用所述催化剂的方法

    公开(公告)号：US5350819A

    公开(公告)日：1994-09-27

    申请号：US44529

    申请日：1993-04-08

    申请人： Timothy D. Shaffer

    发明人： Timothy D. Shaffer

    IPC分类号： C08F4/52 ,  C08F2/06 ,  C08F4/00 ,  C08F4/14 ,  C08F4/44 ,  C08F8/00 ,  C08F10/00 ,  C08F10/10 ,  C08F110/10

    CPC分类号： C08F10/00 ,  C08F10/10 ,  C08F110/10

    摘要： A living carbocationic catalyst composition comprising an initiator of a tertiary alkyl halide, a tertiary aralkyl halide or polymeric halide a co-initiator of an alkyl aluminum or alkyl boron, a proton scavenger and a solvent medium with a dielectric constant between 2.5 and 3.25 is used to produce narrow molecular weight distribution polymers particularly isobutylene polymers.

    摘要翻译： 使用包含叔烷基卤化物的引发剂，叔芳烷基卤化物或聚合卤化物，烷基铝或烷基硼的共引发剂，质子清除剂和介电常数在2.5和3.25之间的溶剂介质的活性碳阳离子催化剂组合物 以产生窄分子量分布聚合物，特别是异丁烯聚合物。