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    Diene elastomer with cyclic vinyl units and processes for obtaining same
    1.
    发明申请
    Diene elastomer with cyclic vinyl units and processes for obtaining same 有权
    具有环状乙烯基单元的二烯弹性体及其制备方法

    公开(公告)号：US20090082534A1

    公开(公告)日：2009-03-26

    申请号：US12292524

    申请日：2008-11-20

    申请人： Jean-Luc Cabioch ,  Laurent Coissieux ,  Nicole Dajoux

    发明人： Jean-Luc Cabioch ,  Laurent Coissieux ,  Nicole Dajoux

    IPC分类号： C08F4/48 ,  C08F236/06 ,  C08F4/46 ,  C08F236/10

    CPC分类号： C08C19/44 ,  C08F36/04 ,  C08F4/565

    摘要： The present invention relates to a linear or branched diene elastomer having cyclic vinyl units. A linear diene elastomer according to the invention results from at least one conjugated diene and it comprises cyclic vinyl units in a mass content of greater than or equal to 15% while having a number-average molecular weight falling within a range of from 10,000 to 300,000 g/mol. The invention also relates to a process for the production of such a linear or branched diene elastomer including cyclic vinyl units in the above-stated content and having a number-average molecular weight ranging from 10,000 to 300,000 g/mol, such that said process includes the continuous reaction of at least one conjugated diene monomer in an inert aliphatic or alicyclic hydrocarbon solvent with a catalytic system comprising an organolithium initiator, a polar agent having two or more heteroatoms and an alkali metal salt of an aliphatic or alicyclic alcohol, where: (i) the (polar agent:initiator) molar ratio is greater than or equal to 3. (ii) the (salt:initiator) molar ratio falls within a range of from 0.01 to 2, and (iii) the (salt:polar agent) molar ratio falls within a range of from 0.001 to 0.5.

    摘要翻译： 本发明涉及具有环状乙烯基单元的直链或支链二烯弹性体。 根据本发明的线性二烯弹性体由至少一种共轭二烯产生，并且其包含质量含量大于或等于15％的环状乙烯基单元，同时数均分子量在10,000至300,000的范围内 g / mol。 本发明还涉及一种制备这种线性或支化二烯弹性体的方法，其包括上述含量的环状乙烯基单元，数均分子量为10,000-300,000g / mol，使得所述方法包括 惰性脂族或脂环族烃溶剂中的至少一种共轭二烯单体与包含有机锂引发剂，具有两个或更多个杂原子的极性试剂和脂族或脂环族醇的碱金属盐的催化体系的连续反应，其中： i）（极性剂：引发剂）摩尔比大于或等于3.（ii）（盐：引发剂）的摩尔比在0.01至2的范围内，和（iii）（盐：极性剂 ）摩尔比落在0.001至0.5的范围内。

    Synthesis of high vinyl rubber
    3.
    发明授权
    Synthesis of high vinyl rubber 有权
    高乙烯基橡胶的合成

    公开(公告)号：US06566478B1

    公开(公告)日：2003-05-20

    申请号：US10135138

    申请日：2002-04-30

    申请人： Steven Kristofer Henning ,  Michael Lester Kerns ,  Zhengfang Xu

    发明人： Steven Kristofer Henning ,  Michael Lester Kerns ,  Zhengfang Xu

    IPC分类号： C08F3604

    CPC分类号： B60C1/0016 ,  C08F36/04 ,  C08K3/36 ,  C08K5/548 ,  C08L9/00 ,  C08L9/06 ,  Y02T10/862 ,  C08F4/565 ,  C08L2666/08

    摘要： This invention is based upon the discovery that rubbery polymers having a high vinyl content and a low degree of branching can be synthesized with an initiator system that is comprised of (a) a lithium initiator selected from the group consisting of allylic lithium compounds and benzylic lithium compounds, (b) a Group I metal alkoxide, and (c) a polar modifier; wherein the molar ratio of the Group I metal alkoxide to the polar modifier is within the range of about 0.1:1 to about 10:1; and wherein the molar ratio of the Group I metal alkoxide to the lithium initiator is within the range of about 0.01:1 to about 20:1. These high vinyl polymers offer reduced levels of hysteresis and better functionalization efficiency. By virtue of their lower level of hysteresis these polymers can be utilized in manufacturing tire tread compounds that exhibit lower levels of rolling resistance and can accordingly be used to improve the fuel economy of motor vehicles without compromising other desirable characteristics, such as traction and tread-wear.

    摘要翻译： 本发明基于以下发现：具有高乙烯基含量和低支化度的橡胶状聚合物可以由引发剂体系合成，所述引发剂体系包含（a）选自烯丙基锂化合物和苄基锂的锂引发剂 化合物，（b）第I族金属醇盐，和（c）极性改性剂; 其中第I族金属醇盐与极性改性剂的摩尔比在约0.1:1至约10:1的范围内; 并且其中所述第I族金属醇盐与所述锂引发剂的摩尔比在约0.01:1至约20:1的范围内。 这些高乙烯基聚合物具有降低的滞后水平和更好的功能化效率。 由于它们的迟滞水平较低，这些聚合物可以用于制造具有较低滚动阻力水平的轮胎胎面胶料，并且因此可用于改善机动车辆的燃料经济性而不损害其它所需的特性，例如牵引和胎面 - 穿。

    Process for copolymerizing conjugated dienes
    4.
    发明授权
    Process for copolymerizing conjugated dienes 失效
    共聚二烯的共聚方法

    公开(公告)号：US3767632A

    公开(公告)日：1973-10-23

    申请号：US3767632D

    申请日：1971-05-03

    申请人： FIRESTONE TIRE & RUBBER CO

    发明人： HALASA A

    IPC分类号： C08F36/04 ,  C08F19/06 ,  C08F19/08

    CPC分类号： C08F36/04 ,  C08F4/565

    摘要： A DIENE OF 4 TO 6 CARBON ATOMS AND STYRENE OR OTHER VINYL AROMATIC MONOMER, INCLUDING ALKYLATED VINYL AROMATIC MONOMERS, ARE COPOLYMERIZED IN A HYDROCARBON SOLVENT USING A SUBSTANTIAL AMOUNT OF EACH MONOMER AND UTILIZING AS THE CATALYST, ALKYLLITHIUM AND POTASSIUM HYDROXIDE. THEY MAY BE ADDED SEPARATELY OR MAY BE COMPLEXED BEFORE BEING ADDED TO THE REACTION MIXTURE. THE RESULTING COPOLYMER IS A COPOLYMER OF SUBSTANTIALLY CONSTANT COMPOSITION (I.E. A COPOLYMER CONTAINING NO SUBSTANTIAL BLOCK OF VINYL MONOMER); AND IT HAS SUBSTANTIALLY THE MICROSTRUCTURE OF A NORMAL POLYMER INITIATED BY AN ORGANOLITHIUM CATALYST. THE DIENE MAY BE BUTADIENE, ISOPRENE, PIPERYLENE OR 2,3-DIMETHYLBUTADIENE OR A MIXTURE THEREOF. THE VINYL AROMATIC MONOMER MAY BE STYRENE OR AN ALKYLATED STRYRENE OR VINYL NAPHTHYLENE OR ALKYLATED VINYL NAPHTHYLENE OR A MIXTURE THEREOF.

    Process for polymerizing conjugated diene monomers
    5.
    发明授权
    Process for polymerizing conjugated diene monomers 失效
    聚合二烯单体的方法

    公开(公告)号：US3736312A

    公开(公告)日：1973-05-29

    申请号：US3736312D

    申请日：1971-06-07

    申请人： FIRESTONE TIRE & RUBBER CO

    发明人： HALASA A

    IPC分类号： C08F36/04 ,  C08D3/04 ,  C08D3/06 ,  C08D3/08

    CPC分类号： C08F36/04 ,  C08F4/565

    摘要： CONJUGATED DIENES ARE POLYMERIZED BY A NEW CATALYST SYSTEM WHICH PERMITS CONTROL OF THE MOLECULAR WEIGHT AND GIVES A MORE EASILY PROCESSED PRODUCT. THIS CATALYST SYSTEM COMPRISES (1) A LITHIUM ALLYL COMPOUND HAVING 3-10 CARBON ATOMS, AND (2) A SODIUM OXYHYDROCARBON COMPOUND OF 1-10 CARBON ATOMS IN WHICH THE HYDROCARBON PORTION CAN BE A TERTIARY ALKYL RADICAL, BUT IS PREFERABLY A SECONDARY ALKYL RADICAL, OR A POTASSIUM TERTIARY ALKOXIDE OF 4-10 CARBON ATOMS. THE DIENE POLYMERS PRODUCED BY THIS PROCESS HAVE CONTROLLABLE MOLECULAR WEIGHTS IN THE RANGE OF 5,000 TO 1,000,000, PREFERABLY 100,000 TO 500,000, BROAD MOLECULAR WEIGHT DISTRIBUTION, HIGH GLASS TRANSITION TEMPERATURES, HIGH DEGREE OF BRANCHING AND ARE MORE EASILY PROCESSED IN THE PRODUCTION OF RUBBER AND OTHER COMPOSITIONS FOR COMMERCIAL USE.

    Diene elastomers with cyclic vinyl units and processes for obtaining same
    10.
    发明申请
    Diene elastomers with cyclic vinyl units and processes for obtaining same 有权
    具有环状乙烯基单元的二烯弹性体及其制备方法

    公开(公告)号：US20040147696A1

    公开(公告)日：2004-07-29

    申请号：US10756386

    申请日：2004-01-14

    申请人： MICHELIN RECHERCHE ET TECHNIQUE S.A.

    发明人： Jean-Luc Cabioch ,  Laurent Coissieux ,  Nicole Dajoux

    IPC分类号： B01J021/00 ,  C08F004/46

    CPC分类号： C08C19/44 ,  C08F36/04 ,  C08F4/565

    摘要： The present invention relates to a linear or branched diene elastomer having cyclic vinyl units. A linear diene elastomer according to the invention results from at least one conjugated diene and it comprises cyclic vinyl units in a mass content of greater than or equal to 15% while having a number-average molecular weight falling within a range of from 10,000 to 300,000 g/mol. The invention also relates to a process for the production of such a linear or branched diene elastomer including cyclic vinyl units in the above-stated content and having a number-average molecular weight ranging from 10,000 to 300,000 g/mol, such that said process includes the continuous reaction of at least one conjugated diene monomer in an inert aliphatic or alicyclic hydrocarbon solvent with a catalytic system comprising an organolithium initiator, a polar agent having two or more heteroatoms and an alkali metal salt of an aliphatic or alicyclic alcohol, where: (i) the (polar agent:initiator) molar ratio is greater than or equal to 3. (ii) the (salt:initiator) molar ratio falls within a range of from 0.01 to 2, and (iii) the (salt:polar agent) molar ratio falls within a range of from 0.001 to 0.5.