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25 条记录 (耗时 0.021 秒)

    Process for the preparation of tapered copolymers via in situ dispersion
    1.
    发明授权
    Process for the preparation of tapered copolymers via in situ dispersion 失效
    通过原位分散制备锥形共聚物的方法

    公开(公告)号：US5614579A

    公开(公告)日：1997-03-25

    申请号：US352938

    申请日：1994-12-09

    申请人： David M. Roggeman ,  James E. Hall

    发明人： David M. Roggeman ,  James E. Hall

    IPC分类号： C08F297/04 ,  C08K3/02

    CPC分类号： C08F297/04

    摘要： A process is provided for the preparation of tapered copolymers by the nonaqueous dispersion polymerization of a mixture of 30 to 70% by weight of a conjugated diolefin monomer, preferably butadiene, and 30 to 70% by weight of a vinyl substituted aromatic monomer, preferably styrene, in a liquid hydrocarbon dispersion medium with an anionic initiator catalyst system in the presence of a block copolymeric dispersing agent. At least one block of the dispersing agent is prepared prior to the dispersion polymerization reaction and at least one block of the dispersing agent is prepared in situ during the dispersion copolymerization. The block of the dispersing agent that is prepared in situ has the polymer structure of the tapered copolymer.

    摘要翻译： 提供了一种制备锥形共聚物的方法，该方法是通过非水分散聚合制备30至70重量％的共轭二烯烃单体，优选丁二烯和30至70重量％的乙烯基取代的芳族单体，优选苯乙烯 在具有阴离子引发剂催化剂体系的液体烃分散介质中，在嵌段共聚物分散剂存在下进行。 在分散聚合反应之前制备至少一个分散剂块，并且在分散共聚过程中原位制备至少一个分散剂块。 原位制备的分散剂块具有锥形共聚物的聚合物结构。

    In-situ anionic continuous dispersion polymerization process
    2.
    发明授权
    In-situ anionic continuous dispersion polymerization process 失效
    原位阴离子连续分散聚合方法

    公开(公告)号：US5891947A

    公开(公告)日：1999-04-06

    申请号：US137332

    申请日：1993-10-18

    申请人： James E. Hall ,  David M. Roggeman

    发明人： James E. Hall ,  David M. Roggeman

    IPC分类号： C08F2/44 ,  C08F2/00 ,  C08F212/00 ,  C08F212/06 ,  C08F236/10 ,  C08F297/04 ,  C08K3/20

    CPC分类号： C08F297/04

    摘要： The present invention relates to a process for the dispersion copolymerization of 35 to 70% by weight of vinyl substituted aromatic monomer and 30 to 65% by weight of conjugated diene monomer comprising carrying out the copolymerization in a reaction mixture containing a liquid aliphatic hydrocarbon dispersing medium, an anionic catalyst system, and an "A" block of a copolymer dispersing agent, the dispersing agent having at least two polymer blocks wherein at least one of the polymer blocks is soluble in the dispersing medium and at least another of the polymer blocks is insoluble in the dispersing medium and is formed in situ.

    摘要翻译： 本发明涉及一种将35〜70重量％乙烯基取代芳香族单体和30〜65重量％的共轭二烯单体进行分散共聚的方法，包括在含有液体脂族烃分散介质的反应混合物中进行共聚 ，阴离子催化剂体系和共聚物分散剂的“A”嵌段，所述分散剂具有至少两个聚合物嵌段，其中至少一个聚合物嵌段可溶于分散介质，并且至少另一个聚合物嵌段是 不溶于分散介质并原位形成。

    Humidification of hydrocarbon mixtures for use in polymer synthesis
    6.
    发明授权
    Humidification of hydrocarbon mixtures for use in polymer synthesis 有权
    用于聚合物合成的烃混合物的加湿

    公开(公告)号：US06723888B2

    公开(公告)日：2004-04-20

    申请号：US09808508

    申请日：2001-03-14

    申请人： David M. Roggeman ,  James Oziomek ,  Timothy L. Tartamella

    发明人： David M. Roggeman ,  James Oziomek ,  Timothy L. Tartamella

    IPC分类号： C10M10502

    CPC分类号： C07C11/167 ,  B01F3/04078 ,  B01F5/0696

    摘要： A humidification system (A) for humidifying a dry hydrocarbon stream includes a column (10) which defines an interior cavity (20). The cavity is partially filled with a bed (12) of a packing material (40) and a layer of water (20), leaving a headspace above the water. An inlet (52) adjacent a lower end of the cavity receives a dry hydrocarbon stream which is broken up by the packing material and dissolves water as it passes therethrough. Entrained water droplets fall out of the wet blend in a disengagement zone (70) above the water layer leaving the hydrocarbon stream humidified yet substantially free of liquid water in an upper region (72) of the column.

    摘要翻译： 用于加湿干烃流的加湿系统（A）包括限定内部空腔（20）的塔（10）。 空腔部分地填充有包装材料（40）的床（12）和一层水（20），在水面上留下顶部空间。 与空腔下端相邻的入口（52）接收由包装材料分解的干烃流，并在其通过时溶解水。 夹带的水滴在水层上方的分离区（70）中从湿共混物中脱落，使烃流在塔的上部区域（72）中被加湿而基本上没有液态水。

    Apparatus For Humidification Of Hydrocarbon Mixtures
    9.
    发明申请
    Apparatus For Humidification Of Hydrocarbon Mixtures 审中-公开
    烃混合物加湿装置

    公开(公告)号：US20110171078A1

    公开(公告)日：2011-07-14

    申请号：US12982278

    申请日：2010-12-30

    申请人： David M. Roggeman ,  James Oziomek ,  Timothy L. Tartamella

    发明人： David M. Roggeman ,  James Oziomek ,  Timothy L. Tartamella

    IPC分类号： B01J19/00 ,  B01D11/00

    CPC分类号： C07C11/167 ,  B01F3/04078 ,  B01F5/0696

    摘要： A humidification system (A) for humidifying a dry hydrocarbon stream includes a column (10) which defines an interior cavity (20). The cavity is partially filled with a bed (12) of a packing material (40) and a layer of water (20), leaving a headspace above the water. An inlet (52) adjacent a lower end of the cavity receives a dry hydrocarbon stream which is broken up by the packing material and dissolves water as it passes therethrough. Entrained water droplets fall out of the wet blend in a disengagement zone (70) above the water layer leaving the hydrocarbon stream humidified yet substantially free of liquid water in an upper region (72) of the column.

    摘要翻译： 用于加湿干烃流的加湿系统（A）包括限定内部空腔（20）的塔（10）。 空腔部分地填充有包装材料（40）的床（12）和一层水（20），在水面上留下顶部空间。 与空腔下端相邻的入口（52）接收由包装材料分解的干烃流，并在其通过时溶解水。 夹带的水滴在水层上方的分离区（70）中从湿共混物中脱落，使烃流在塔的上部区域（72）中被加湿而基本上没有液态水。

    Continuous method for preparing high cis-1,4 polybutadiene
    10.
    发明授权
    Continuous method for preparing high cis-1,4 polybutadiene 失效
    制备高顺式-1,4聚丁二烯的连续方法

    公开(公告)号：US4501866A

    公开(公告)日：1985-02-26

    申请号：US633814

    申请日：1984-07-23

    申请人： David M. Roggeman ,  Shrikant R. Malani ,  Jung W. Kang

    发明人： David M. Roggeman ,  Shrikant R. Malani ,  Jung W. Kang

    IPC分类号： C08F4/00 ,  C08F2/04 ,  C08F2/06 ,  C08F4/54 ,  C08F4/60 ,  C08F4/70 ,  C08F36/06 ,  C08F136/06 ,  C08F4/82

    CPC分类号： C08F136/06

    摘要： A method for preparing high cis-1,4 polybutadiene by a continuous process which involves the continuous polymerization of 1,3-butadiene in solution under adiabatic conditions is provided. The method comprises the steps of: (I) feeding continuously to a single agitated polymerization reactor: (a) a monomer stream comprising 1,3-butadiene in a hydrocarbon solvent; (b) a preformed .pi. allyl catalyst stream formed by admixing a carboxylated metal oxy borate compound represented by the formulae (RCOOMO).sub.3 B or (ROCOOMO).sub.2 B-OR' wherein R and R' are alkyl radicals containing from 7 to 17 carbon atoms and M is nickel or cobalt, an organo aluminum compound, an alcohol, a small amount of 1,3-butadiene and a hydrocarbon solvent; and (c) a cocatalyst stream comprising a boron trifluoride complex with an alcohol; and (II) withdrawing continuously from said reactor high cis-1,4 polybutadiene at the same rate as said monomer, preformed catalyst and cocatalyst streams are fed to the reactor.In an additional embodiment of the invention, a method of preparing a preformed .pi. allyl catalyst having improved stability and solubility in hydrocarbon solvent is provided.High cis-1,4 polybutadiene polymers produced by the method of the invention have good green strength and tack and may be used as tire rubbers and impact modifiers for plastics.

    摘要翻译： 提供了一种通过连续方法制备高顺式-1,4聚丁二烯的方法，该方法涉及在绝热条件下在溶液中连续聚合1,3-丁二烯。 该方法包括以下步骤：（I）连续进料到单一搅拌聚合反应器中：（a）在烃溶剂中包含1,3-丁二烯的单体料流; （b）通过将由式（RCOOMO）3B或（ROCOOMO）2B-OR'表示的羧化金属硼酸硼酸盐化合物（RCOOMO）2B-OR'（其中R和R'是含有7至17个碳原子的烷基）和 M是镍或钴，有机铝化合物，醇，少量的1,3-丁二烯和烃溶剂; 和（c）包含三氟化硼配合物与醇的助催化剂流; 和（II）以与所述单体相同的速率从所述反应器高顺式-1,4-聚丁二烯中连续排出，将预制的催化剂和助催化剂物流进料到反应器中。 在本发明的另外的实施方案中，提供了一种制备具有改进的在烃溶剂中的稳定性和溶解度的预制的丙烯酸烯丙酯的方法。 通过本发明方法制备的高顺-1,4聚丁二烯聚合物具有良好的生坯强度和粘性，并可用作塑料的轮胎橡胶和抗冲击改性剂。