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
2006-01-10
2006-01-10
Choi, Ling-Sui (Department: 1713)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
C502S103000, C502S114000, C502S115000, C502S127000, C526S126000, C526S124300, C526S124200, C526S128000
Reexamination Certificate
active
06984600
ABSTRACT:
An olefin polymerization catalyst comprising: (A1) a solid catalyst component prepared by contacting (a1) a dialkoxymagnesium, (b1) a tetravalent titanium halide, (c1) an electron compound, and (d1) a polysiloxane, (B) an organoaluminum compound of the formula R1pAlQ3-p, and (C) an aminosilane compound of the formula (R2R3N)Si(OR4)3has a high activity to hydrogen as compared with conventional catalysts and maintains the capability of producing polymers with a high stereoregularity at a high yield.
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Chosa Satoru
Sato Hiroshi
Tashino Kunihiko
Yoshikiyo Motozo
Choi Ling-Sui
Toho Catalyst Co., LTD
Ube Industries, LTD
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