Title:
CATALYST FOR OLEFIN POLYMERIZATION AND PREPARATION OF OLEFIN POLYMER
Document Type and Number:
Japanese Patent JP3903558
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To inexpensively synthesize a polymer having little of a catalyst residue with high reactivity by using, for olefin (co)polymerization, a catalyst comprising a constitutional component of a modified clay which is treated with transition metal compds. of a specific chemical structure and a compd. contg. a group 15 or 16 element in the periodic table.
SOLUTION: This catalyst for olefin polymerization comprises a modified clay in which transiting metal compds. expressed by formulae I, II, and/or formula III and a clay mineral are treated with a compd. contg. an element of group 15 or 16 the periodic table. In formulae I to III, M1 to M3 are each Ti, Zr or Hf; Cp1 to Cp5 are each a cyclopentadienyl or fluorenyl group; R' is H, a 1-20C hydrocarbyl or alkylsilyl group; X1 to X6 are each H or a 1-20C hydrocarbyl group; Z1 and Z2 are each a 1-20C hydrocarbyl, alkylsilanediyl group or the like; J is a group 15 or 16 element in the periodic table; (a) is the coordination number of J; and L is a Lewis base and the number (b) thereof comes under an equation, 0≤b≤3. The catalyst is prepared by modifying a clay and a clay mineral with an onium compd. an element of N, P, O or S, then contacting with the transition metal compds. of formulae I to III.
Inventors:
Satoshi Hamura
Yasuda he Sami
Tsutomu Yoshida
Morihiko Sato
Yasuda he Sami
Tsutomu Yoshida
Morihiko Sato
Application Number:
JP34471097A
Publication Date:
April 11, 2007
Filing Date:
December 15, 1997
Export Citation:
Assignee:
Tosoh Corporation
International Classes:
C08F4/76; C08F10/00; (IPC1-7): C08F4/76; C08F10/00
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