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
2007-12-11
2007-12-11
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...
C502S115000, C502S118000, C502S133000, C502S158000, C526S348000, C526S128000, C526S125100, C526S123100, C526S124200
Reexamination Certificate
active
10896723
ABSTRACT:
A highly active alpha-olefin polymerization catalyst component is disclosed. In the presence of a co-catalyst, the catalyst component is useful for the production of LLDPE resins. The catalyst component is produced by a method whereby organic silicon compounds are reacted with a transition metal complex and active transition metal species is deposited on a silicon-containing MgCl2that is prepared in situ in the presence of the organic silicon compounds.
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Chen Chih-Jian
Liu Zhongyang
Lu Honglan
Xu Guangxue
Choi Ling-Sui
Formosa Plastics Corporation U.S.A.
Howrey LLP
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