Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2005-07-26
2005-07-26
Choi, Ling-Sui (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S351000, C526S348000, C526S943000, C526S124100, C502S103000, C502S132000, C502S152000, C502S156000
Reexamination Certificate
active
06921800
ABSTRACT:
A modified aluminum oxy compound (A) obtained by reacting an aluminum oxy compound (a), water (b) and a compound having a hydroxyl group (c); a polymerization catalyst component comprising the modified aluminum oxy compound; a polymerization catalyst obtained by contacting said modified aluminum oxy compound (A), a transition metal compound (B) and optionally an organoaluminum compound (C) and a specified boron compound; and a process for producing an olefin polymer or an alkenyl aromatic hydrocarbon polymer with the polymerization catalyst.
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Fujita Masayuki
Miyatake Tatsuya
Nabika Masaaki
Oi Nobuo
Seki Yoshinori
Choi Ling-Sui
Stevens Davis Miller & Mosher L.L.P.
Sumitomo Chemical Company Limited
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