Linear low density polyethylenes with high melt strength and...

Details Linear low density polyethylenes with high melt strength and... Linear low density polyethylenes with high melt strength and...

2006-11-07

2006-11-07

Rabago, Roberto (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S118000, C526S113000, C526S114000, C526S160000, C526S348000, C526S348200, C526S348600, C525S240000

Reexamination Certificate

active

07132486

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.

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