Controlled distribution of stereospecific sites in...

Details Controlled distribution of stereospecific sites in... Controlled distribution of stereospecific sites in...

2007-04-04

2010-12-14

Wu, David (Department: 1796)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

C502S104000, C502S115000, C502S116000, C502S126000, C502S134000, C502S226000, C502S227000

Reexamination Certificate

active

07851395

ABSTRACT:
This invention relates to an improved method for improving the tacticity of Ziegler-Natta catalyst systems and for controlling the behaviour of the active stereospecific sites.

REFERENCES:
patent: 4829037 (1989-05-01), Terano et al.
patent: 5188997 (1993-02-01), Luciani et al.
patent: 2005/0003953 (2005-01-01), Chen et al.
patent: 0474249 (1992-03-01), None
patent: 0504744 (1992-09-01), None

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