Transition metal compound, catalyst for addition...

Details Transition metal compound, catalyst for addition... Transition metal compound, catalyst for addition...

2005-03-22

2005-03-22

Wu, David W. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S172000, C526S160000, C526S170000, C526S151000, C526S153000, C526S134000, C526S131000, C526S943000, C502S103000, C502S113000, C502S104000

Reexamination Certificate

active

06870017

ABSTRACT:
A catalyst for addition polymerization obtained by bringing the following (A) into contact with (B) a specific organic aluminum compound and/or aluminoxane, and (C) a specific boron compound, and a process for producing an addition polymer with the same.(A) a transition metal compound represented by the formula (3):wherein M represents a titanium atom, zirconium atom or hafnium atom in the +3 oxidation state; Cp1represents a group having a cyclopentadiene type anion skeleton; J represents an atom of XIV group in the Periodic Table of the Elements; each of R2and R3independently represents a hydrogen atom, halogen atom, alkyl group, aralkyl group, aryl group, substituted silyl group, alkoxy group, aralkyloxy group, aryloxy group or di-substituted amino group; m represents an integer of from 0 to 4; E represents an oxygen atom or sulfur atom; R1represents an alkyl group, aralkyl group, aryl group or substituted silyl group; each of two Xs independently represents a hydrogen atom, halogen atom, alkyl group, aralkyl group, aryl group, substituted silyl group, alkoxy group, aralkyloxy group, aryloxy group or di-substituted amino group; D represents a neutral ligand coordinated on M; and n represents an integer of from 0 to 2.

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