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
2005-04-26
2005-04-26
Rabago, Roberto (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...
C502S129000, C502S152000, C502S154000, C502S120000, C526S118000, C526S119000
Reexamination Certificate
active
06884747
ABSTRACT:
Linear low density polyethylenes (LLDPEs) that have relatively high melt index ratios (MIR) and relatively high melt strength (MS) are described. This combination of melt properties is achieved by a substantially non-blended LLDPE. Catalysts used to produce these polyethylenes are generally a blend of bridged bisindenyl zirconocene dichlorides, where one zirconocene contains saturated indenyls and the other unsaturated indenyls.
REFERENCES:
patent: 5696045 (1997-12-01), Winter et al.
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patent: 6339134 (2002-01-01), Crowther et al.
patent: 6420580 (2002-07-01), Holtcamp et al.
Dekmezian Armenag Hagop
Merrill Natalie Ann
Rabago Roberto
Univation Technologies LLC
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