摘要:
A catalyst component for the polymerization of alpha-olefins, represented by the following formula [I]: ##STR1## wherein R.sup.1 -R.sup.3 =H, a halogen, a C.sub.1-10 hydrocarbon radical, a Si-containing C.sub.1-18 hydrocarbon radical, or a halogen-containing C.sub.1-10, hydrocarbon radical (provided that R.sup.1 and R.sup.2 cannot be hydrogen at the same time); n=2 to 7; Q=a C.sub.1-20 hydrocarbon radical, a silylene or oligosilylene group having or not having a C.sub.1-20 hydrocarbon radical, a germylene group having or not having a C.sub.1-20 hydrocarbon radical; X and Y=H, a halogen, a C.sub.1-20 hydrocarbon radical, or an O- or N-containing C.sub.1-20 hydrocarbon radical; and M=a transition metal selected from the groups IVB-VIB; a catalyst for the polymerization of alpha-olefins, comprising the catalyst component; and a process for producing alpha-olefin polymers, where use is made of the catalyst. Use of the catalyst will produce alpha-olefin polymers having a high melting point and a high molecular weight in a high yield.
摘要翻译:由下式[I]表示的用于α-烯烃聚合的催化剂组分:其中R1-R3 = H,卤素,C1-10烃基,含Si的C1-18烃基或卤素 含有C 1-10的烃基(条件是R1和R2不能同时为氢); n = 2〜7; Q = C 1-20烃基,具有或不具有C 1-20烃基的亚甲硅烷基或低聚亚芳基,具有或不具有C 1-20烃基的亚乙烯基; X和Y = H,卤素,C 1-20烃基或含O-或N的C 1-20烃基; M =选自IVB-VIB族的过渡金属; 包含催化剂组分的α-烯烃聚合催化剂; 和使用催化剂的α-烯烃聚合物的制备方法。 催化剂的使用将以高产率生产具有高熔点和高分子量的α-烯烃聚合物。
摘要:
The present invention provides a catalyst for polymerizing an .alpha.-olefin which is capable of producing an .alpha.-olefin polymer having a high molecular weight in a high yield under the polymerization conditions including at high temperature, and a process for preparing an .alpha.-olefin polymer, which catalyst comprises a Component (A) which comprises a coordination compound having a skeleton of a metallocene compound comprising an indenyl ring or a hydroindenyl ring which is an indenyl having a six-membered portion hydrogenated as a ligand and having Ti, Zr or Hf as a metal component in combination with a Component (B) which is, for example, an alumoxane. The coordination compound is crosslinked at the six-membered rings characterized by the fact that two of the indenyl or hydroindenyl groups are crosslinked at the six-membered ring of the indenyl or hydroindenyl group.
摘要:
A metallocene complex by which high uptake efficiency of ethylene and/or α-olefin can be obtained compared with the conventional metallocene catalyst, and robber component having high molecular weight can be polymerized, and polymerization method of olefin. Metallocene complex (metallocene complex having furyl or thienyl group in which substituent exists at 5-position of indenyl ring, and substituent may exist at 2-position of indenyl ring, and the like) represented by the general formula [II], the catalyst for olefin polymerization characterized by comprising said metallocene complex, and polymerization method of olefin characterized that polymerization or copolymerization of olefin is carried out using said polymerization catalyst for olefin, and the like.
摘要:
A metallocene complex by which high uptake efficiency of ethylene and/or α-olefin can be obtained compared with the conventional metallocene catalyst, and rubber component having high molecular weight can be polymerized, and polymerization method of olefin.Metallocene complex (metallocene complex having furyl or thienyl group in which substituent exists at 5-position of indenyl ring, and substituent may exist at 2-position of indenyl ring, and the like) represented by the general formula [I], the catalyst for olefin polymerization characterized by comprising said metallocene complex, and polymerization method of olefin characterized in that polymerization or copolymerization of olefin is carried out using said polymerization catalyst for olefin, and the like.
摘要:
Catalysts for polymerization of &agr;-olefin, composed of a transition metal compound, an inorganic silicate or an ion exchangeable layer compound other than silicate, and optionally an organoaluminum compound, are described. The transition metal compound is represented by formula (I): where A1 and A2 are each independently a conjugated 5-membered ring ligand, preferably azulene groups, provided that A1 and A2 may be the same or different in a molecule, and at least one of A1 and A2 forms a 7- to 10-membered condensed ring including two adjacent carbon atoms of the conjugated 5-membered ring, which condensed ring is formed by joining two adjacent substitutent groups on the conjugated 5-membered ring; Q is a bridging group of the two conjugated 5-membered rings of A1 and A2 at optional positions of the 5-membered rings; M is a metal atom selected from elements of Group 4-6 of the Periodic Table; and X and Z are each independently a hydrogen atom, a halogen atom, a hydrocarbon group, and amino group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a nitrogen-containing hydrocarbon group, a phosphorus-containing hydrocarbon group or a silicon-containing hydrocarbon group.
摘要:
Catalysts for polymerization of &agr;-olefin, composed of a transition metal compound, an inorganic silicate or an ion exchangeable layer compound other than silicate, and optionally an organoaluminum compound, are described. The transition metal compound is represented by formula (I): where A1 and A2 are each independently a conjugated 5-membered ring ligand provided that A1 and A2 may be the same or different in a molecule, and at least one of A1 and A2 forms a 7- to 10-membered condensed ring including two adjacent carbon atoms of the conjugated 5-membered ring, which condensed ring is formed by joining two adjacent substitutent groups on the conjugated 5-membered ring; Q is a bridging group of the two conjugated 5-membered rings of A1 and A2 at optional positions of the 5-membered rings; M is a metal atom selected from elements of Group 4-6 of the Periodic Table; and X and Z are each independently a hydrogen atom, a halogen atom, a hydrocarbon group, and amino group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a nitrogen-containing hydrocarbon group, a phosphorus-containing hydrocarbon group or a silicon-containing hydrocarbon group.
摘要:
The present invention relates to a catalyst for polymerization of &agr;-olefin, which comprises: an essential component (A) of a transition metal compound, an essential component (B) of an ion exchangeable layer compound except for silicate, or an inorganic silicate, and an optional component (C) of an organoaluminum compound, said component (A) being represented by the general formula (I):
摘要:
The present invention relates to a catalyst for polymerization of &agr;-olefin, which comprises: an essential component (A) of a transition metal compound, an essential component (B) of an ion exchangeable layer compound except for silicate, or an inorganic silicate, and an optional component (C) of an organoaluminum compound, said component (A) being represented by the general formula (I):
摘要:
Disclosed is a novel transition metal compound which is used for forming a metallocene catalyst for olefin polymerization. Specifically disclosed is a novel transition metal compound represented by the general formula below which enables to form a metallocene catalyst that has a balanced reactivity with ethylene and a comonomer selected from α-olefins having 3-20 carbon atoms and enables to produce an α-olefin polymer having a high molecular weight. Also specifically disclosed are a catalyst for olefin polymerization containing such a transition metal compound, and a method for producing a propylene/ethylene-α-olefin block copolymer wherein such a catalyst is used.
摘要:
To develop a catalyst component for olefin polymerization, a metallocene catalyst for olefin polymerization and a process for the production of an olefin polymer capable of producing an olefin polymer having a high molecular weight and a high melting point which can be extruded or injection-molded in a high yield and a novel transition metal compound to be used in these catalyst components a catalyst component for olefin polymerization is made of a transition metal compound represented by formula (I) shown below; a metallocene catalyst for olefin polymerization comprises the catalyst component for olefin polymerization; and a process for the production of an olefin polymer is performed in the presence of the metallocene catalyst for olefin polymerization: