摘要:
An olefin polymerization process comprising contacting one or more olefins and a catalyst component in a reaction zone under suitable reaction conditions to form a polyolefin, wherein the catalyst component is characterized by the formula: B(Cp)(Fl)MQ2 wherein M comprises a metal, Q comprises a halogen, an alkyl group or an aryl group or combinations thereof, Cp comprises a cyclopentadienyl group, Fl comprises a fluorenyl group, B is a bridging group that may be characterized by the general formula —YRH wherein Y comprises C or Si and R comprises an alkyl group, an aryl group, a poly-aryl group or combinations thereof.
摘要:
Catalyst compositions and processes for the polymerization of ethylenically unsaturated monomers to produce polymers, including copolymers or homopolymers. Such monomers include ethylene, C3+ alpha olefins and substituted vinyl compounds, such as styrene and vinyl chloride. The polymerization catalyst characterized by the formula B(FluL)MQn in which Flu is a fluorenyl group substituted at at least the 2,7- and 3,6-positions by hydrocarbyl groups, preferably relatively bulky hydrocarbyl groups. L is a substituted or unsubstituted cyclopentadienyl, indenyl or fluorenyl group or a heteroorgano group, XR, in which X is a heteroatom from Group 15 or 16 of the Periodic Table of Elements, such as nitrogen, R is an alkyl group, a cycloalkyl group or an aryl group and B is a structural bridge extending between the groups L and Flu, which imparts stereorigidity to the ligand structure, M is a Group 4 or Group 5 transition metal, such as titanium, zirconium or hafnium and Q is selected from the group consisting of chlorine, bromine, iodine, an alkyl group, an amino group, an aromatic group and mixtures thereof, with n being 1 or 2.
摘要翻译:催化剂组合物和用于聚合烯属不饱和单体以生产聚合物的方法,包括共聚物或均聚物。 这些单体包括乙烯,C 3+α-烯烃和取代的乙烯基化合物,例如苯乙烯和氯乙烯。 其中Flu是在至少2,7-和3,6位被烃基取代的芴基的式B(FluL)MQ N n的特征的聚合催化剂,优选相对庞大的烃基 团体 L是取代或未取代的环戊二烯基,茚基或芴基或杂有机基团XR,其中X是元素周期表第15或16族的杂原子,例如氮,R是烷基,环烷基 或芳基,B是在基团L和Flu之间延伸的结构桥,其赋予配体结构立体刚性,M是第4族或第5族过渡金属,例如钛,锆或铪,Q选自 由氯,溴,碘,烷基,氨基,芳族基团及其混合物组成的组,n为1或2。
摘要:
Supported catalyst systems, methods of forming polyolefins and the formed polymers are generally described herein. The methods generally include identifying desired polymer properties, providing a transition metal compound and selecting a support material capable of producing the desired polymer properties, wherein the support material includes a bonding sequence selected from Si—O—Al—F, F—Si—O—Al, F—Si—O—Al—F and combinations thereof.
摘要:
Supported catalyst systems and methods of forming the same are generally described herein. The methods generally include providing a support material including silica-alumina prepared by cogel methods, contacting the support material with a fluorinating agent to form a fluorinated support and contacting the fluorinated support with a transition metal compound to form a supported catalyst system.
摘要:
The present invention discloses a method for preparing a supported catalyst component comprising the steps of: a) providing a halogenated bisimine precursor component of formula (I); b) reacting the halogenated bisimine precursor with an ionic liquid precursor in a solvent to prepare an ionic liquid; c) reacting the ionic liquid prepared in step b) with a metallic complex of formula (II) L2MY2; wherein L is a labile ligand, M is a metal selected from Ni or Pd and Y is a halogen; d) retrieving a single site catalyst component dissolved in an ionic liquid. It also discloses an active catalyst system dissolved in an ionic liquid and its use in the polymerisation of olefins.
摘要:
The present invention discloses a metallocene catalyst component of formula (Flu-R″-Cp)M(η3-C3R′5)(ether)n (I) wherein Cp is a cyclopentadienyl, substituted or unsubstituted, Flu is a fluorenyl, substituted or unsubstitutted, R″ is a structural bridge between Cp and Flu imparting stereorigidity to the component, M is a metal Group III of the Periodic Table, each R′ is the same or different and is hydrogen or a hydrocarbyl having from 1 to 20 carbon atoms and n is 0, 1 or 2. It further discloses a process for preparing said catalyst component and its used in the controlled polymerisation of polar or non polar monomers.
摘要翻译:本发明公开了一种式(Flu-R“-C Cp)M(η3 -OR 3 R 5)5的茂金属催化剂组分, )(醚)其中Cp是环戊二烯基,取代或未取代的,Flu是芴基,取代或未取代的R“是Cp和Flu赋予组分立体刚性之间的结构桥 M是元素周期表的金属III族,各R'相同或不同,为氢或碳原子数为1〜20的烃基,n为0,1或2.进一步公开了制备所述 催化剂组分及其用于极性或非极性单体的受控聚合。
摘要:
Catalyst compositions having Cs symmetry and processes utilizing Cs symmetric catalyst components for the polymerization of ethylenically unsaturated monomers to produce polymers, including copolymers or homopolymers. Monomers, which are polymerized or copolymerized include ethylene, C3+ alpha olefins and substituted vinyl compounds, such as styrene and vinyl chloride. The catalyst component is characterized by the formula: wherein M is a Group 4-11 transition metal, n is an integer of from 1-3, Q is halogen or a C1-C2 alkyl group, PY is a pyridinyl group, R′ and R″ are each C1-C20 hydrocarbyl group, A1 is a mononuclear aromatic group, and A2 is a polynuclear aromatic group, such as a terphenyl group. The catalyst component is used with an activating co-catalyst component such as an alumoxane. Also disclosed is a process for the preparation of a pyridinyl-linked bis-amino ligand suitable for use in forming the catalyst component.
摘要:
Provided is a method for the production of an olefin co-polymer, which method comprises co-polymerising two or more olefin monomers in the presence of a metallocene catalyst, wherein the metallocene catalyst comprises a metallocene having the following formula: R″(CpRm)(FluR′n)MQ2 wherein Cp comprises a cyclopentadienyl ring; Flu comprises a fluorenyl ring; R″ comprises a structural bridge imparting stereorigidity to the component; each R is the same or different and is an organic group; m is an integer of from 1-4; each R′ is the same or different and is an organic group; n is an integer of from 0-8; M is a metal atom from group IVB of the Periodic Table or is vanadium; and each Q is a hydrocarbon having from 1-20 carbon atoms or is a halogen.
摘要:
Catalyst compositions and processes for the polymerization of ethylenically unsaturated monomers to produce polymers, including copolymers or homopolymers. Such monomers include ethylene, C3+ alpha olefins and substituted vinyl compounds, such as styrene and vinyl chloride. The polymerization catalyst characterized by the formula B(FluL)MQn in which Flu is a fluorenyl group substituted at at least the 2,7- and 3,6-positions by hydrocarbyl groups, preferably relatively bulky hydrocarbyl groups. L is a substituted or unsubstituted cyclopentadienyl, indenyl or fluorenyl group or a heteroorgano group, XR, in which X is a heteroatom from Group 15 or 16 of the Periodic Table of Elements, such as nitrogen, R is an alkyl group, a cycloalkyl group or an aryl group and B is a structural bridge extending between the groups L and Flu, which imparts stereorigidity to the ligand structure, M is a Group 4 or Group 5 transition metal, such as titanium, zirconium or hafnium and Q is selected from the group consisting of chlorine, bromine, iodine, an alkyl group, an amino group, an aromatic group and mixtures thereof, with n being 1 or 2.
摘要翻译:催化剂组合物和用于聚合烯属不饱和单体以生产聚合物的方法,包括共聚物或均聚物。 这些单体包括乙烯,C 3+α-烯烃和取代的乙烯基化合物,例如苯乙烯和氯乙烯。 其中Flu是在至少2,7-和3,6位被烃基取代的芴基的式B(FluL)MQ N n的特征的聚合催化剂,优选相对庞大的烃基 团体 L是取代或未取代的环戊二烯基,茚基或芴基或杂有机基团XR,其中X是元素周期表第15或16族的杂原子,例如氮,R是烷基,环烷基 或芳基,B是在基团L和Flu之间延伸的结构桥,其赋予配体结构立体刚性,M是第4族或第5族过渡金属,例如钛,锆或铪,Q选自 由氯,溴,碘,烷基,氨基,芳族基团及其混合物组成的组,n为1或2。