Olefin polymerization process to produce branched polymer...

Details Olefin polymerization process to produce branched polymer... Olefin polymerization process to produce branched polymer...

2006-09-05

2006-09-05

Rabago, Roberto (Department: 1713)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S240000, C525S244000, C525S320000, C526S336000, C526S339000, C526S348000

Reexamination Certificate

active

07101936

ABSTRACT:
A method of lowering MFR response of a high-melt-flow-rate-polymer-producing metallocene catalyst is provided. The method includes contacting the metallocene catalyst with a sufficient quantity of α,ω-diene monomer such that when the catalyst composition is contacted with polymerizable reactants under suitable polymerization conditions, the resulting polymer has an MFR rate in the range of 0.1 to 1000. Hydrogen and ethylene may also be present in the polymerization. Additionally a catalyst composition is provided which includes a high-melt-flow-rate-polymer-producing metallocene catalyst and a sufficient quantity of α,ω-diene monomers such that when the catalyst composition is contacted with a monomer under polymerization conditions, the resulting polymer has an MFR rate in the range of 0.1 to 1000.

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