Catalytic component for addition polymerization, process for producing addition polymerization and process for producing addition polymer

A catalyst and addition polymer technology, applied in the field of catalyst components, can solve the problems of lack of good fluidity, unsatisfactory melt flow rate, unsatisfactory melt tension, etc.
CN1408738AInactive Publication Date: 2003-04-09SUMITOMO CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUMITOMO CHEM CO LTD
Publication Date
2003-04-09
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

There are provided: (I) a catalyst component for addition polymerization comprising: (i) a transition metal compound having (a) two cyclopentadiene type anion skeleton-carrying groups, which are linked with each other directly or through a bridging group, and (b) a hafnium atom as its central metal, and (ii) a transition metal compound having (a) two substituted cyclopentadiene type anion skeleton-carrying groups, which are not linked with each other, and (b) a zirconium atom or a titanium atom as its central atom; and (II) a process for producing a catalyst for addition polymerization, which comprises the step of contacting the above catalyst component with a co-catalyst component for activation.
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Description

technical field

[0001] The present invention relates to a catalyst component for polyaddition comprising a metallocene transition metal compound; a method for producing a catalyst for polyaddition; and a method for producing an polyaddition. Background technique

[0002] In recent years, there has been proposed a method for producing addition polymers, which includes the step of polymerizing monomers for addition polymerization such as olefins using a catalyst that is a transition metal compound such as a metallocene complex and a non-metallocene compound with a compound Combinations of aluminoxanes. Such catalysts are called single-site catalysts.

[0003] Their examples are catalysts belonging to the combination of dichlorobis(cyclopentadienyl)zirconium and methylaluminoxane (JP-A58-19309); and dimethylbis(cyclopentadienyl) ) Catalysts of combinations of zirconium and boron compounds such as tri(n-butyl)ammonium tetrakis(pentafluorophenyl)borate (JP-W1-502036).

[0004] ...

Claims

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