Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Reexamination Certificate
2007-05-22
2007-05-22
Wood, Elizabeth D. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
C502S104000, C502S110000, C502S129000, C502S132000, C502S133000, C502S134000, C502S169000, C502S172000, C526S124900
Reexamination Certificate
active
10501888
ABSTRACT:
Disclosed is a catalyst for olefin polymerization comprising [I] a solid titanium catalyst component [S] comprising titanium, magnesium, halogen and an electron donor (b), which is obtained by bringing a solid adduct consisting of a magnesium compound and an electron donor (a) into contact with an electron donor (b) and a liquid titanium compound by at least one method selected from (A) a method of contacting the materials in a suspended state in the coexistence of an inert hydrocarbon solvent and (B) a method of contacting the material plural times individed portions and [II] an organometallic compound catalyst component [M] containing a metal selected from the groups I to III in the periodic table.
REFERENCES:
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Matsunaga Kazuhisa
Nagano Masao
Ohgizawa Masaaki
Tsutsui Toshiyuki
Birch & Stewart Kolasch & Birch, LLP
Mitsui Chemicals Inc.
Wood Elizabeth D.
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