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7 条记录 (耗时 0.031 秒)

    Method for preparing polyacryl(meth)acrylates
    1.
    发明授权
    Method for preparing polyacryl(meth)acrylates 失效
    制备聚丙烯酸（甲基）丙烯酸酯的方法

    公开(公告)号：US06271324B1

    公开(公告)日：2001-08-07

    申请号：US09297918

    申请日：1999-05-12

    申请人： Stephan Jüngling ,  Christof Mehler ,  Horst Weiss ,  Susanne Steiger ,  Axel Müller ,  Helmut Schlaad ,  Bardo Schmitt

    发明人： Stephan Jüngling ,  Christof Mehler ,  Horst Weiss ,  Susanne Steiger ,  Axel Müller ,  Helmut Schlaad ,  Bardo Schmitt

    IPC分类号： C08F456

    CPC分类号： C08F20/12 ,  C08F297/026

    摘要： Homopolymers, copolymers or block copolymers are prepared by anionic polymerization of acrylates and/or methacrylates in the presence of an initiator composition containing A) an organic alkali metal compound, B) an organic aluminum compound and C) an additive which forms a complex with the alkali metal cation and is selected from the group consisting of open-chain ethers having at least two ether oxygen atoms, macrocyclic ethers and cryptands, or from the group consisting of quaternary cations of the general formula I  where A is N, P, As or Sb and Ra, Rb, Rc and Rd, independently of one another, are each unsubstituted or substituted alkyl, cycloalkyl, aralkyl or aryl, where two neighboring radicals, together with the heteroatom A, may form a 5- or 6-membered heterocyclic structure which may contain one or two further heteroatoms selected from nitrogen, oxygen and sulfur atoms.

    摘要翻译： 均聚物，共聚物或嵌段共聚物通过丙烯酸酯和/或甲基丙烯酸酯在引发剂组合物的存在下的阴离子聚合制备，所述引发剂组合物包含A）有机碱金属化合物，B）有机铝化合物和C）与碱金属形成络合物的添加剂 并且选自具有至少两个醚氧原子的开链醚，大环醚和cryptands，或者由通式I的季铵阳离子组成的组，其中A是N，P，As或Sb和R a， R b，R c和R d彼此独立地为各自为未取代或取代的烷基，环烷基，芳烷基或芳基，其中两个相邻的基团与杂原子A一起可以形成可含有一个的5或6元杂环结构 或另外两个选自氮，氧和硫原子的杂原子。

    Process for preparing rubber-modified moulding compounds
    3.
    发明授权
    Process for preparing rubber-modified moulding compounds 失效
    制备橡胶改性模塑料的方法

    公开(公告)号：US06211297B1

    公开(公告)日：2001-04-03

    申请号：US09319596

    申请日：1999-06-08

    申请人： Graham Edmund Mc Kee ,  Stephan Jüngling ,  Volker Warzelhan ,  Hermann Gausepohl

    发明人： Graham Edmund Mc Kee ,  Stephan Jüngling ,  Volker Warzelhan ,  Hermann Gausepohl

    IPC分类号： C08L2300

    CPC分类号： C08F20/12

    摘要： Preparation of rubber-modified molding compositions comprises a1) anionic polymerization of a mixture (A) comprising acrylate derivatives or methacrylate derivatives or acrylate derivatives and methacrylate derivatives and a solvent, if desired comprising olefinically unsaturated compounds which are not an acrylate derivative or a methacrylate derivative, or a2) sequential anionic polymerization of acrylate derivatives or methacrylate derivatives or acrylate derivatives and methacrylate derivatives in the presence of a solvent which, if desired, comprises olefinically unsaturated compounds to give block copolymers, and b) subjecting the reaction mixture obtained in a1) or a2) or a1) and a2) to a free-radical-initiated polymerization, if desired after the addition of unsaturated compounds.

    摘要翻译： 橡胶改性成型组合物的制备包括a）如果需要，包含丙烯酸酯衍生物或甲基丙烯酸酯衍生物或丙烯酸酯衍生物和甲基丙烯酸酯衍生物的混合物（A）的阴离子聚合和包含不是丙烯酸酯衍生物或甲基丙烯酸酯衍生物的烯属不饱和化合物的溶剂， ora2）在溶剂存在下丙烯酸酯衍生物或甲基丙烯酸酯衍生物或丙烯酸酯衍生物和甲基丙烯酸酯衍生物的顺序阴离子聚合，如果需要，其包含烯属不饱和化合物以产生嵌段共聚物，和b）使得在a1）或a2）中获得的反应混合物， 或a1）和a2）进行自由基引发的聚合，如果需要，在加入不饱和化合物之后。

    Method for producing a solution of diene polymers in vinyl aromatic compounds and method for producing resistant vinyl aromatic polymers by polymerizing the same solution
    4.
    发明授权
    Method for producing a solution of diene polymers in vinyl aromatic compounds and method for producing resistant vinyl aromatic polymers by polymerizing the same solution 失效
    乙烯基芳族化合物中二烯聚合物溶液的制备方法和通过聚合相同溶液制备耐乙烯基芳族聚合物的方法

    公开(公告)号：US06476133B1

    公开(公告)日：2002-11-05

    申请号：US09936350

    申请日：2001-09-11

    申请人： Stephan Jüngling ,  Hermann Gausepohl ,  Volker Warzelhan

    发明人： Stephan Jüngling ,  Hermann Gausepohl ,  Volker Warzelhan

    IPC分类号： C08F800

    CPC分类号： C08F36/04 ,  C08C19/44 ,  C08F4/48 ,  C08F4/52

    摘要： A process for preparing a solution of high molecular weight polymers of conjugated dienes in a vinylaromatic hydrocarbon by anionic polymerization of the diene in the presence of an alkyllithium as catalyst and a process for preparing impact-modified polymers of vinylaromatic compounds is described. The first process comprises firstly polymerizing the diene in solution in an aromatic hydrocarbon which is free of ethylenic double bonds to a molecular weight below about 105, then adding a trialkylaluminum in a molar excess relative to the alkyllithium, diluting the solution obtained with the vinylaromatic compound and then coupling the polydiene with a polyepoxide or an alkyl (meth)acrylate to give a high molecular weight polymer. The solution obtained in this way is further processed to give an impact-modified polymer of a vinylaromatic hydrocarbon by polymerizing the solution prepared as described, if desired after addition of further amounts of a vinylaromatic compound, in a manner known per se.

    摘要翻译： 描述了在烷基锂作为催化剂存在下通过二烯的阴离子聚合制备共轭二烯的高分子量聚合物在乙烯基芳烃中的溶液的方法和制备乙烯基芳族化合物的冲击改性聚合物的方法。 第一种方法包括首先使溶液中的二烯在不含烯属双键的芳族烃中聚合，分子量低于约105，然后加入相对于烷基锂摩尔过量的三烷基铝，稀释用乙烯基芳族化合物 然后将聚二烯与聚环氧化物或（甲基）丙烯酸烷基酯偶合，得到高分子量聚合物。 以这种方式获得的溶液被进一步加工，以通过以本身已知的方式聚合按照如上所述制备的溶液，如果需要，加入另外量的乙烯基芳族化合物后，得到一种乙烯基芳烃的冲击改性聚合物。