PROCESS FOR THE PREPARATION OF (CO) POLYMERS OF CONJUGATED DIENES IN THE PRESENCE OF A CATALYTIC SYSTEM COMPRISING A BIS-IMINE COMPLEX OF COBALT

    公开(公告)号:US20150329651A1

    公开(公告)日:2015-11-19

    申请号:US14443093

    申请日:2013-12-19

    申请人: VERSALIS S.P.A.

    IPC分类号: C08F36/06

    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 bisimine 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.

    Methods of constructing alkene-based copolymer polyolefins having reduced crystallinity
    4.
    发明授权
    Methods of constructing alkene-based copolymer polyolefins having reduced crystallinity 有权
    构建结晶度降低的烯烃共聚物聚烯烃的方法

    公开(公告)号:US08399588B1

    公开(公告)日:2013-03-19

    申请号:US13644654

    申请日:2012-10-04

    IPC分类号: C08F110/06 C08F210/00

    摘要: The invention is a novel family of polyolefins characterized by chain-walking defects of the type that add extra backbone carbons per monomer. These polyolefins display a large decrease in crystallinity relative to polyolefins known in the art. Specifically, the reduction in crystallinity is much greater than for earlier polypropylenes with a matched content of stereo or 1-alkene type defects. The claimed polyolefins can be an alkene-based copolymer. The defects in the polyolefin backbone are generated by a chain walking mechanism in which three or more carbons per monomer are added to the polymer backbone instead of two, as in conventional polymerization or copolymerization methods of alpha olefins. The novel polyolefins can be used in applications such as plastic wrapping, thin films, co-extrusion layers or molded parts in the absence of polymer blending or copolymerization. The cost of materials production can be reduced.

    摘要翻译: 本发明是一种新型的聚烯烃系列,其特征在于每单体添加额外的骨架碳的类型的链步行缺陷。 这些聚烯烃相对于本领域已知的聚烯烃显示出大的结晶度降低。 具体来说,结晶度的降低远远大于具有匹配的立体或1-烯烃型缺陷的早先聚丙烯。 要求保护的聚烯烃可以是基于烯烃的共聚物。 聚烯烃主链中的缺陷是通过链式步行机制产生的,其中每个单体的三个或更多个碳被加入聚合物主链而不是两个,如在常规的α-烯烃的聚合或共聚方法中。 在不存在聚合物共混或共聚的情况下,新型聚烯烃可用于塑料包装,薄膜,共挤出层或模制部件等应用中。 可以降低材料生产的成本。

    Transition metal compounds for olefin polymerization and oligomerization

    公开(公告)号:US07741240B2

    公开(公告)日:2010-06-22

    申请号:US11596554

    申请日:2005-05-23

    IPC分类号: B01J31/22 C08F4/70 C07F15/00

    摘要: This invention relates to new transition metal catalyst compounds represented by the formula (I): where: M and M′ are, independently, a group 8, 9, 10 or 11 transition metal, preferably Ni, Co, Pd, Cu or Fe; each R group is, independently, is, hydrogen, or a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl substituents, and optionally, adjacent R groups may join together to form a substituted or unsubstituted, saturated, partially unsaturated, or aromatic cyclic or polycyclic substituent; R′ is hydrogen, or a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl substituents, and optionally, adjacent R groups may join together with R′ to form a substituted or unsubstituted, saturated, partially unsaturated, or aromatic cyclic or polycyclic substituent; each X group is, independently, is, hydrogen, a halogen, or a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl substituents, and optionally, adjacent X groups may join together to form a substituted or unsubstituted, saturated, partially unsaturated, or aromatic cyclic or polycyclic substituent; m and m′ are, independently, 0, 1, 2, or 3; z and z′ are, independently, 0, 1, 2, or 3; N is nitrogen; Q is hydrogen, or a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl substituents; Q′ is hydrogen, or a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl substituents; and L is a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl substituent.

    Polymerization catalysts, preparation of polyolefins, organotransition metal compounds and ligands
    9.
    发明授权
    Polymerization catalysts, preparation of polyolefins, organotransition metal compounds and ligands 失效
    聚合催化剂,聚烯烃的制备,有机过渡金属化合物和配体

    公开(公告)号:US07589223B2

    公开(公告)日:2009-09-15

    申请号:US10573228

    申请日:2004-09-16

    摘要: The invention relates to non-metallocene catalyst systems useful for preparing olefin homopolymers or copolymers. The catalyst systems comprise a cocatalyst and a Group 3-10 transition metal compound that incorporates a diimine ligand in which sp2-hybridized carbons of the imine groups are joined by a specific divalent one- or two-membered bridge (Y) comprising nitrogen and/or oxygen. The invention includes the diimine ligands, the transition metal compounds, the catalyst systems, and processes for making the ligands, transition metal compounds, catalyst systems, and olefin homopolymers or copolymers.

    摘要翻译: 本发明涉及用于制备烯烃均聚物或共聚物的非茂金属催化剂体系。 催化剂体系包含助催化剂和3-10族过渡金属化合物,该化合物含有二亚胺配体,其中亚胺基团的sp2杂化的碳通过特定的二价一元或二元桥(Y)与氮和/ 或氧气。 本发明包括二亚氨配体,过渡金属化合物,催化剂体系以及制备配体,过渡金属化合物,催化剂体系和烯烃均聚物或共聚物的方法。