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    • 1. 发明申请
    • CHROMIUM CATALYSTS ACTIVE IN OLEFIN POLYMERIZATION
    • 在烯烃聚合中活化的铬催化剂
    • US20080021180A1
    • 2008-01-24
    • US11842323
    • 2007-08-21
    • Luis LlatasEncarna GilJose RoyoMiguel RodrigoAna De LamaMontserrat EscoEnrique Rodriguez
    • Luis LlatasEncarna GilJose RoyoMiguel RodrigoAna De LamaMontserrat EscoEnrique Rodriguez
    • C08F4/06
    • C08F10/02C07F11/005C08F4/63904C08F4/63912C08F4/63916C08F4/63927C08F4/65927C08F10/00C08F110/02C08F210/16C08F4/6292C08F2500/03C08F2500/23C08F2500/02C08F2500/20C08F210/14C08F4/69224
    • The present invention relates to chromium(III) complexes defined by following formula: wherein: each R1 is independently selected from hydrogen, C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C2-C20 alkenyl, optionally comprising 1 to 5 heteroatoms such as Si, N, P, O, F, Cl, B; each R2 is independently selected from hydrogen, C1-C20 alkyl, C3-C20 cycloalkyl, silyl, C6-C20 aryl, C2-C20 alkenyl, optionally comprising 1 to 5 heteroatoms such as Si, N, P, O, F, Cl, B; R1 and R2 can join together forming one or more aromatic or aliphatic rings optionally containing heteroatoms; each A is independently selected from nitrogen, phosphorous, As, Sb; each E is independently selected from carbon, phosphorus, nitrogen; Z is a group comprising at least a nitrogen, phosphorous, oxygen or sulfur atom which is able to coordinate to the chromium atom; Z can join one or more R2 groups to form one or more rings; each p is independently 1 or 2; each n is independently 0, 1 or 2; each X is independently an atom or group covalently or ionically attached to the chromium atom. This invention further relates to olefin polymerization catalysts obtainable by treating a chromium complex with an organoaluminium compound. The catalyst preparation and its use in polymerization are described.
    • 本发明涉及由下式定义的铬(III)络合物:其中:每个R 1独立地选自氢,C 1 -C 20, C 1 -C 6烷基,C 3 -C 20环烷基,C 6 -C 20芳基,C 1 -C 20烷基, 任选地包含1至5个杂原子,例如Si,N,P,O,F,Cl,B; 每个R 2独立地选自氢,C 1 -C 20烷基,C 3 -C 20亚烷基,C 3 -C 20 > 20个环烷基,甲硅烷基,C 6 -C 20芳基,C 2 -C 20芳基,C 1 -C 20烷基, 烯基,任选地包含1至5个杂原子,例如Si,N,P,O,F,Cl,B; R 1和R 2可以连接在一起形成一个或多个任选地含有杂原子的芳族或脂族环; 每个A独立地选自氮,磷,As,Sb; 每个E独立地选自碳,磷,氮; Z是至少包含能与铬原子配位的氮,磷,氧或硫原子的基团; Z可以连接一个或多个R 2 2个基团以形成一个或多个环; 每个p独立地为1或2; 每个n独立地为0,1或2; 每个X独立地是与铬原子共价或离子键连接的原子或基团。 本发明还涉及通过用有机铝化合物处理铬络合物而获得的烯烃聚合催化剂。 描述了催化剂制备及其在聚合中的用途。