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    Polymers containing repeating cycloketonic units, and method for obtaining them
    5.
    发明授权
    Polymers containing repeating cycloketonic units, and method for obtaining them 失效
    含有重复环丙基单元的聚合物及其获得方法

    公开(公告)号：US5369187A

    公开(公告)日：1994-11-29

    申请号：US71517

    申请日：1993-06-03

    申请人： Anna Sommazzi ,  Nicoletta Cardi ,  Fabio Garbassi ,  Chrissostomos Chatgilialoglu

    发明人： Anna Sommazzi ,  Nicoletta Cardi ,  Fabio Garbassi ,  Chrissostomos Chatgilialoglu

    IPC分类号： C08F8/48 ,  C08C19/00 ,  C08C19/10 ,  C08F8/00 ,  C08G67/02

    CPC分类号： C08C19/00 ,  C08C19/10

    摘要： Polymers having a very good combination of chemical, mechanical and process properties, and particularly useable either alone or as mixtures, as high-tenacity thermoplastic polymer and as elastomers or elastomeric modifiers, contain, randomly distributed along their chain, repeating cycloketonic structural units having the following general formula (I): ##STR1## wherein: A represents a tetravalent aliphatic or cycloaliphatic, substituted or non-substituted moiety containing a total number of from 4 to 50, preferably from 4 to 20, carbon atoms.Such polymers can be prepared by means of a process which comprises reacting, in a liquid media, a polydiene containing adjacent structural units derived from the 1,4-cis polymerization of conjugated dienes, with carbon monoxide, in the presence of free radical generating compounds and, optionally, a compound capable of acting as a hydrogen donor.

    摘要翻译： 作为高韧性热塑性聚合物和弹性体或弹性体改性剂，具有非常好的化学，机械和加工性能的组合，特别是可单独使用或作为混合物使用的聚合物包含沿着它们的链无规分布的重复的环酮结构单元， 通式（I）：其中：A表示含有总数为4至50，优选4至20个碳原子的四价脂族或脂环族，取代或未取代的部分。 这样的聚合物可以通过一种方法制备，该方法包括使液体介质中含有衍生自共轭二烯的1,4-顺式聚合的相邻结构单元的聚二烯与一氧化碳在存在自由基产生化合物 和任选的能够充当氢供体的化合物。

    Process for the preparation of crystalline vinylaromatic polymers with a predominant syndiotactic structure
    6.
    发明授权
    Process for the preparation of crystalline vinylaromatic polymers with a predominant syndiotactic structure 失效
    制备具有主要间同立构结构的结晶乙烯基芳族聚合物的方法

    公开(公告)号：US5721327A

    公开(公告)日：1998-02-24

    申请号：US805247

    申请日：1997-02-24

    申请人： Roberto Santi ,  Giuseppe Cometti ,  Riccardo Po' ,  Nicoletta Cardi

    发明人： Roberto Santi ,  Giuseppe Cometti ,  Riccardo Po' ,  Nicoletta Cardi

    IPC分类号： C08F4/643 ,  C08F12/04 ,  C07F7/00

    CPC分类号： C08F12/04 ,  Y10S526/943

    摘要： Process for the preparation of crystalline vinylaromatic polymers with a predominant syndiotactic structure which involves polymerizing vinylaromatic monomers in the presence of a catalytic system comprising: a titanium complex having general formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4, the same or different, represent a hydrogen atom or a C.sub.1 -C.sub.20 alkyl radical or a C.sub.6 -C.sub.20 arylalkyl or aryl radical, on the condition that at least one of these is different from hydrogen.

    摘要翻译： 制备具有主要间同立构结构的结晶乙烯基芳族聚合物的方法，其包括在催化体系存在下聚合乙烯基芳族单体，包括：具有通式（I）的钛络合物：其中R1，R2，R3和 R 4相同或不同，表示氢原子或C 1 -C 20烷基或C 6 -C 20芳基烷基或芳基，条件是它们中的至少一个不同于氢。

    Process for the preparation of crystalline vinylaromatic polymers with a predominantly syndiotactic structure
    7.
    发明授权
    Process for the preparation of crystalline vinylaromatic polymers with a predominantly syndiotactic structure 失效
    具有主要间同立构结构的结晶乙烯基芳族聚合物的制备方法

    公开(公告)号：US5629391A

    公开(公告)日：1997-05-13

    申请号：US654202

    申请日：1996-05-28

    申请人： Nicoletta Cardi ,  Riccardo Po' ,  Roberto Santi ,  Giuseppe Cometti

    发明人： Nicoletta Cardi ,  Riccardo Po' ,  Roberto Santi ,  Giuseppe Cometti

    IPC分类号： C08F4/642 ,  C08F4/60 ,  C08F4/643 ,  C08F4/646 ,  C08F12/04 ,  C08F12/06 ,  C08F12/08 ,  C08F212/00

    CPC分类号： C08F12/04 ,  C08F12/08 ,  C08F2420/04

    摘要： Process for the preparation of crystalline vinylaromatic polymers with a predominantly syndiotactic structure which comprises polymerizing the vinylaromatic monomers in the presence of a catalytic system consisting essentially of:a) a complex of titanium having the formula (I):Ti(OCONRR').sub.n (I) wherein R and R', the same or different, represent a C.sub.1 -C.sub.12 aliphatic radical or C.sub.6 -C.sub.12 aromatic radical whereas n is an integer equal to 3 or 4;b) a cocatalyst selected from aluminoxane and a compound of boron having formula (II):BX.sub.1 X.sub.2 X.sub.3 (II) wherein X.sub.1, X.sub.2 and X.sub.3, the same or different, represent a C.sub.1 -C.sub.20 perfluorinated hydrocarbon radical.

    摘要翻译： 制备具有主要间同立构结构的结晶乙烯基芳族聚合物的方法，其包括在催化体系存在下聚合乙烯基芳族单体，催化体系基本上由以下组成：a）具有式（I）的钛络合物：Ti（OCONRR'）n（ I）其中R和R'相同或不同，表示C1-C12脂族基或C6-C12芳族基，而n是等于3或4的整数; b）选自铝氧烷和具有式（II）的硼化合物的助催化剂：BX1X2X3（II）其中X1，X2和X3相同或不同，表示C1-C20全氟烃基。

    Process for the preparation of crystalline vinylaromatic polymers with a predominantly syndiotactic structure
    8.
    发明授权
    Process for the preparation of crystalline vinylaromatic polymers with a predominantly syndiotactic structure 失效
    具有主要间同立构结构的结晶乙烯基芳族聚合物的制备方法

    公开(公告)号：US5728784A

    公开(公告)日：1998-03-17

    申请号：US757251

    申请日：1996-11-27

    申请人： Riccardo Po' ,  Nicoletta Cardi ,  Roberto Santi

    发明人： Riccardo Po' ,  Nicoletta Cardi ,  Roberto Santi

    IPC分类号： C08F2/02 ,  C08F2/04 ,  C08F2/06 ,  C08F4/642 ,  C08F4/646 ,  C08F4/659 ,  C08F4/6592 ,  C08F4/80 ,  C08F12/00 ,  C08F12/04

    CPC分类号： C08F12/08 ,  C08F2410/01 ,  C08F2410/03 ,  C08F4/65912

    摘要： Process for the preparation of crystalline vinylaromatic polymers with a predominantly syndiotactic structure which comprises polymerizing vinylaromatic monomers, alone or mixed with at least one other monomer, in the presence of a catalytic system essentially consisting of: a) a complex of titanium or zirconium selected from those having general formula: MR.sub.1 R.sub.2 R.sub.3 R.sub.4, A.sub.1 MR.sub.1 R.sub.2 R.sub.3, A.sub.1 A.sub.2 MR.sub.1 R.sub.2 (I) b) a co-catalyst selected from an alkylalumoxane and a compound of boron having formula (II): BX.sub.1 X.sub.2 X.sub.3 (II) or one of its salts; c) a derivative of tin having general formula: SnR.sub.5 R.sub.6 R.sub.7 R.sub.8 (III)

    摘要翻译： 制备具有主要间同立构结构的结晶乙烯基芳族聚合物的方法，其包括在催化体系存在下单独或与至少一种其它单体混合的乙烯基芳族单体聚合，所述催化体系基本上由以下组成：a）选自 具有通式：MR1R2R3R4，A1MR1R2R3，A1A2MR1R2（I）的共催化剂b）选自烷基铝氧烷和具有式（II）的硼化合物的助催化剂：BX1X2X3（Ⅱ）或其盐之一; c）具有以下通式的锡衍生物：SnR 5 R 6 R 7 R 8（III）