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
2011-05-17
2011-05-17
Choi, Ling-Siu (Department: 1762)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
C502S103000, C502S115000, C502S116000
Reexamination Certificate
active
07943545
ABSTRACT:
A polyethylene may be prepared using a mixture of a silica supported catalyst and a magnesium chloride supported catalyst. By changing the ratio of the two catalysts, the polyethylene produced may have a varying bulk density and shear response. The method allows for the tuning or targeting of properties to fit a specific application, such as a blow molding or vapor barrier film.
REFERENCES:
patent: 5798314 (1998-08-01), Spencer et al.
patent: 2004/0229748 (2004-11-01), Chen et al.
patent: 2 028 347 (1980-03-01), None
Barre Vincent
Gray Steven
Vizzini Kayo
Choi Ling-Siu
Fina Technology, Inc.
Krueger Tenley R.
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