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184 条记录 (耗时 0.034 秒)

    Process for the preparation of (co) polymers of conjugated dienes in the presence of a catalytic system comprising a bis-imine complex of cobalt
    83.
    发明授权
    Process for the preparation of (co) polymers of conjugated dienes in the presence of a catalytic system comprising a bis-imine complex of cobalt 有权

    公开(公告)号：US09617360B2

    公开(公告)日：2017-04-11

    申请号：US14443093

    申请日：2013-12-19

    申请人： Versalis S.P.A.

    发明人： Giovanni Ricci ,  Anna Sommazzi ,  Giuseppe Leone ,  Francesco Masi ,  Aldo Boglia

    IPC分类号： C08F4/80 ,  C08F36/00 ,  C08F36/06 ,  C08F136/06 ,  C08F4/70

    CPC分类号： C08F36/06 ,  C08F4/7096 ,  C08F136/06 ,  C08F4/7006

    摘要： Process for the preparation of (co) polymers of conjugated dienes which comprises polymerizing at least one conjugated diene in the presence of a catalytic system comprising at least one bis-imine complex of cobalt having general formula (I) wherein: —n is 0 or 1; —Y represents a group —CR′R″— wherein R′ and R″, equal to or different from each other, represent a hydrogen atom; or a linear or branched C1-C20, preferably C1-C15, alkyl group; or a divalent aromatic group optionally substituted; —R1 and R2, equal to or different from each other, represent a hydrogen atom; or they are selected from a linear or branched Ci-C2o/preferably C1-C15, alkyl group optionally halogenated, cycloalkyl groups optionally substituted; or R1 and R2 can be optionally bound to each other to form, together with the other atoms to which they are bound, a cycle containing from 4 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally substituted with linear or branched C1-C20, preferably C1-C15, alkyl groups, said cycle optionally containing heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorous, selenium; R3 and R4, equal to or different from each other, represent a hydrogen atom; or they are selected from a linear or branched Ci-C20, preferably C1-C15, alkyl groups optionally halogenated, cycloalkyl groups optionally substituted, aryl groups optionally substituted; or R2 and R4 can be optionally bound to each other to form, together with the other atoms to which they are bound, a cycle containing from 3 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally substituted with linear or branched Ci-C2o, preferably C1-C15 alkyl groups, said cycle optionally containing other heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorous, selenium; or R1 and R3 can be optionally bound to each other to form, together with the other atoms to which they are bound, a cycle containing from 3 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally substituted with linear or branched C1-C20, preferably C1-C15, alkyl groups, said cycle optionally containing other heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorous, selenium; X1 and X2, equal to or different from each other, represent a halogen atom such as, for example, chlorine, bromine, iodine; or they are selected from linear or branched C1-C20 preferably C1-C15, alkyl groups, —OCOR5 groups or —OR3 groups wherein R5 is selected from linear or branched C1-C20, preferably C1-C15, alkyl groups.

    VINYL POLYMERS HAVING A FLAME-RETARDANT FUNCTION
    84.
    发明申请
    VINYL POLYMERS HAVING A FLAME-RETARDANT FUNCTION 审中-公开
    具有阻燃功能的乙烯基聚合物

    公开(公告)号：US20170051209A1

    公开(公告)日：2017-02-23

    申请号：US15119564

    申请日：2015-03-26

    申请人： versalis S.p.A.

    发明人： Aldo LONGO ,  Attilio ARIENTI ,  Giuditta VANNUCCI

    IPC分类号： C09K21/14 ,  C08F220/32 ,  C08F293/00

    摘要： The present invention relates to vinyl polymers having certain characteristics which confer flame-retardant properties to the polymer and their polymeric compositions with other vinyl polymers.

    摘要翻译： 本发明涉及具有某些特性的乙烯基聚合物，该聚合物赋予聚合物阻燃性能及其与其它乙烯基聚合物的聚合物组合物。

    Process for the preparation of diene polymers or of random vinyl arene-diene copolymers
    86.
    发明授权
    Process for the preparation of diene polymers or of random vinyl arene-diene copolymers 有权
    制备二烯聚合物或无规乙烯基芳烃 - 二烯共聚物的方法

    公开(公告)号：US09447209B2

    公开(公告)日：2016-09-20

    申请号：US14417928

    申请日：2013-08-30

    申请人： Versalis S.P.A.

    发明人： Luca Soddu ,  Antonio Giuseppe Solito

    IPC分类号： C08F4/46 ,  C08F36/00 ,  C08F12/02 ,  C08F36/06 ,  C08C19/44 ,  C08F236/10

    CPC分类号： C08F36/06 ,  C08C19/44 ,  C08F236/10 ,  C08F4/48

    摘要： Process for the preparation of diene polymers or random vinyl arene-diene copolymers which comprises (co)polymerizing, anionically, in the presence of at least one hydrocarbon solvent, at least one conjugated diene monomer and optionally at least one vinyl arene, in the presence of at least one lithium-based initiator, at least one aprotic polar compound, and at least one compound containing one or more functional groups of the acetylenic type. Said process allows diene polymers or random vinyl arene-diene copolymers to be obtained, which can be advantageously used in the production of tires, in particular in the production of tire treads. The diene polymers or the random vinyl arene-diene copolymers obtained through said process can also be used for the modification of plastic materials [for example, for obtaining high impact polystyrene (HIPS)].

    摘要翻译： 二烯聚合物或无规乙烯基芳烃 - 二烯共聚物的制备方法，其包括（共）在至少一种烃溶剂存在下阴离子聚合至少一种共轭二烯单体和任选的至少一种乙烯基芳烃，在存在下 的至少一种锂基引发剂，至少一种非质子极性化合物和至少一种含有一个或多个炔属型官能团的化合物。 所述方法允许获得二烯聚合物或无规乙烯基芳烃 - 二烯共聚物，其可有利地用于生产轮胎，特别是在轮胎胎面的生产中。 通过所述方法获得的二烯聚合物或无规乙烯基芳烃 - 二烯共聚物也可用于塑料材料的改性（例如获得高抗冲聚苯乙烯（HIPS）]。

    ETHYLBENZENE DEHYDROGENATION PLANT FOR PRODUCING STYRENE AND RELATIVE PROCESS
    88.
    发明申请
    ETHYLBENZENE DEHYDROGENATION PLANT FOR PRODUCING STYRENE AND RELATIVE PROCESS 有权
    用于生产苯乙烯和相关工艺的乙烯脱氢工厂

    公开(公告)号：US20160264496A1

    公开(公告)日：2016-09-15

    申请号：US15035600

    申请日：2014-11-10

    申请人： VERSALIS S.P.A.

    发明人： Armando Galeotti ,  Mirko Oliosi

    IPC分类号： C07C5/333 ,  B01J19/24

    CPC分类号： C07C5/333 ,  B01J8/001 ,  B01J19/24 ,  B01J2208/00176 ,  B01J2208/00256 ,  B01J2208/00265 ,  B01J2208/00504 ,  B01J2219/00024 ,  B01J2219/00103 ,  C07C15/46

    摘要： An ethylbenzene dehydrogenation plant for producing styrene which comprises a reaction section in which one or more adiabatic reaction apparatuses are positioned in series, and a steam circuit in which there is at least one first steam heat exchange apparatus; said plant being characterized in that it comprises heating equipment in which there is a heating circuit by means of recirculation of the fumes formed during dehydrogenation processes of ethylbenzene to give styrene, wherein said heating equipment comprises the following apparatuses in fluid communication with each other by means of said heating circuit: one or more ultra-heating apparatuses, one or more combustion devices in which at least one steam diffuser, one burner and at least one mixing apparatus are inserted, one or more ventilation device(s).

    摘要翻译： 一种用于生产苯乙烯的乙苯脱氢装置，其包括其中一个或多个绝热反应装置串联的反应部分和其中存在至少一个第一蒸汽热交换装置的蒸汽回路; 所述设备的特征在于，其包括加热设备，其中通过在乙苯的脱氢过程中形成的烟气再循环以产生加热回路以产生苯乙烯，其中所述加热设备包括通过装置彼此流体连通的以下装置 所述加热电路：一个或多个超加热装置，一个或多个燃烧装置，其中插入有至少一个蒸汽扩散器，一个燃烧器和至少一个混合装置，一个或多个通风装置。

    Process for the preparation of 1,3-butadiene and styrene copolymers and use thereof in vulcanizable elastomeric compositions
    89.
    发明授权
    Process for the preparation of 1,3-butadiene and styrene copolymers and use thereof in vulcanizable elastomeric compositions 有权
    制备1,3-丁二烯和苯乙烯共聚物的方法及其在可硫化弹性体组合物中的用途

    公开(公告)号：US09416200B2

    公开(公告)日：2016-08-16

    申请号：US14127339

    申请日：2012-06-21

    申请人： Luca Soddu ,  Gabriele Veneri

    发明人： Luca Soddu ,  Gabriele Veneri

    IPC分类号： C08C19/42 ,  C08C19/44 ,  C08F236/10

    CPC分类号： C08C19/42 ,  C08C19/44 ,  C08F236/10 ,  C08F4/48

    摘要： A process for the preparation of a 1,3-butadiene and styrene copolymer comprising the following steps: a) anionically polymerizing a blend comprising from 5% by weight to 40% by weight of styrene and from 60% by weight to 95% by weight of 1,3-butadiene, with respect to the overall weight of the mixture, in the presence of at least one hydrocarbon solvent, of at least one lithium-based catalyst having the general formula LiR1 wherein R1 represents a linear or branched C3-C10 alkyl group, and of least one polar modifier; b) optionally, reacting the copolymer obtained in step (a) with at least one chain-end monomer selected from 1,3-butadiene, styrene and α-methylstyrene; c) reacting from 10% by weight to 70% by weight, preferably from 20% by weight to 50% by weight, of the lithium-terminated polymeric chains present in the copolymer obtained in step (a) or in step (b), with at least one coupling agent selected from liquid polyepoxides having at least three reactive sites capable of reacting with the carbon-lithium chain-ends; d) optionally, reacting the copolymer obtained in step (c) with at least one chain-end monomer selected from 1,3-butadiene, styrene and a-methylstyrene; e) reacting the linear polymeric chains remaining in the copolymer obtained in step (c) or in step (d), with at least one tin compound having the general formula XSn(R2)3 wherein X represents a halogen atom such as, for example, chlorine and R2 represents a linear or branched C1-C10 alkyl group.

    摘要翻译： 一种制备1,3-丁二烯和苯乙烯共聚物的方法，包括以下步骤：a）阴离子聚合共混物，其包含5重量％至40重量％的苯乙烯和60重量％至95重量％ 的1,3-丁二烯相对于混合物的总重量，在至少一种烃溶剂的存在下，至少一种具有通式LiR1的锂基催化剂，其中R 1表示直链或支链C 3 -C 10 烷基和至少一种极性改性剂; b）任选地，使步骤（a）中获得的共聚物与至少一种选自1,3-丁二烯，苯乙烯和α-甲基苯乙烯的链端单体反应; c）使步骤（a）或步骤（b）中获得的共聚物中存在的锂封端聚合物链的重量比为10重量％至70重量％，优选20重量％至50重量％ 其中至少一种偶联剂选自具有至少三个能够与碳 - 锂链端反应的活性位点的液态聚环氧化物; d）任选地，使步骤（c）中获得的共聚物与至少一种选自1,3-丁二烯，苯乙烯和α-甲基苯乙烯的链端单体反应; e）将步骤（c）或步骤（d）中获得的共聚物中剩余的线性聚合物链与至少一种具有通式XSn（R2）3的锡化合物反应，其中X表示卤素原子，例如 ，氯和R 2表示直链或支链的C 1 -C 10烷基。