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    • 82. 发明申请
    • PROCESS FOR THE PREPARATION OF (CO)POLYMERS OF CONJUGATED DIENES IN THE PRESENCE OF A CATALYTIC SYSTEM COMPRISING A VANADIUM BIS-IMINE COMPLEX
    • US20180291126A1
    • 2018-10-11
    • US15765811
    • 2016-12-23
    • versalis S.p.A.
    • Giovanni RICCIGiuseppe LEONEAnna SOMMAZZIFrancesco MASI
    • C08F36/06C08F36/08C08F36/04C08F4/68C08F2/06
    • Process for the preparation of (co) polymers of conjugated dienes comprising polymerizing at least one conjugated diene in the presence of a catalytic system comprising at least one vanadium bis-imine complex having the general formula (I): wherein: m is 0 or 1; Z represents a —CR5R6 group wherein R5 and R6, equal to or different from each other, represent a hydrogen atom; or a C1-C20 alkyl group, preferably C1-C15, linear or branched; or a bivalent aromatic group optionally substituted; R1 and R2 equal to or different from each other, represent a hydrogen atom; or they are selected from C1-C20 alkyl groups, preferably C1-C15, linear or branched, optionally halogenated, cycloalkyl groups optionally substituted; or R1 and R2, may be optionally bound each other so as to form, together with the other atoms which they are bound to, a cycle containing from 4 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally substituted by C1-C20 alkyl groups, preferably C1-C15, linear or branched, said cycle optionally containing heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorus, selenium; R3 and R4, equal to or different from each other, represent a hydrogen atom; or they are selected from C1-C20 alkyl groups, preferably C1-C15, linear or branched, optionally halogenated, cycloalkyl groups optionally substituted, aryl groups optionally substituted; or R2 and R4, may be optionally bound each other so as to form, together with the other atoms which they are bound to, a cycle containing from 3 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally substituted by C1-C20 alkyl groups, preferably C1-C15, linear or branched, said cycle optionally containing other heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorus, selenium; or R1 and R3, may be optionally bound each other so as to form, together with other atoms which they are bound to, a cycle containing from 3 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally substituted by C1-C20 alkyl groups, preferably C1-C1, linear or branched, said cycle optionally containing other heteroatoms such as oxygen, sulfur, nitrogen, silicon, phosphorus, selenium; X1, X2 and X3, equal to or different from each other, represent a halogen atom such as, for example, chlorine, bromine, iodine, preferably chlorine; or they are selected from C1-C20 alkyl groups, preferably C1-C15, linear or branched, —OCOR7 groups or —OR7 groups wherein R7 is selected from C1-C20 alkyl groups, preferably C1-C15, linear or branched; Y is selected from ethers such as, for example, diethylether, tetrahydrofuran (THF), dimethoxyethane, preferably is tetrahydrofuran (THF); n is 0 or 1.
    • 87. 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
    • US09617360B2
    • 2017-04-11
    • US14443093
    • 2013-12-19
    • Versalis S.P.A.
    • Giovanni RicciAnna SommazziGiuseppe LeoneFrancesco MasiAldo Boglia
    • C08F4/80C08F36/00C08F36/06C08F136/06C08F4/70
    • C08F36/06C08F4/7096C08F136/06C08F4/7006
    • 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.
    • 90. 发明授权
    • Process for the preparation of diene polymers or of random vinyl arene-diene copolymers
    • 制备二烯聚合物或无规乙烯基芳烃 - 二烯共聚物的方法
    • US09447209B2
    • 2016-09-20
    • US14417928
    • 2013-08-30
    • Versalis S.P.A.
    • Luca SodduAntonio Giuseppe Solito
    • C08F4/46C08F36/00C08F12/02C08F36/06C08C19/44C08F236/10
    • C08F36/06C08C19/44C08F236/10C08F4/48
    • 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)].
    • 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)]。