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    • 2. 发明申请
      US20150329651A1 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
    • PROCESS FOR THE PREPARATION OF (CO) POLYMERS OF CONJUGATED DIENES IN THE PRESENCE OF A CATALYTIC SYSTEM COMPRISING A BIS-IMINE COMPLEX OF COBALT
    • US20150329651A1
    • 2015-11-19
    • US14443093
    • 2013-12-19
    • VERSALIS S.P.A.
    • Giovanni Ricci , Anna Sommazzi , Giuseppe Leone , Francesco Masi , Aldo Boglia
    • C08F36/06
    • C08F36/06 , C08F4/7096 , C08F136/06 , C08F4/7006
    • 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 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.
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 4. 发明授权
      US08399588B1 Methods of constructing alkene-based copolymer polyolefins having reduced crystallinity 有权
    • Methods of constructing alkene-based copolymer polyolefins having reduced crystallinity
    • 构建结晶度降低的烯烃共聚物聚烯烃的方法
    • US08399588B1
    • 2013-03-19
    • US13644654
    • 2012-10-04
    • The Florida State University Research Foundation, Inc.
    • Rufina Alamo , Geoffrey Coates , Carolina Ruiz-Orta
    • C08F110/06 , C08F210/00
    • C08F8/00 , C08F110/06 , C08F4/7006 , C08F2500/15 , C08F2500/16
    • 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.
    • 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。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
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