Method of making interpolymers and products made therefrom

Details Method of making interpolymers and products made therefrom Method of making interpolymers and products made therefrom

2005-08-02

2005-08-02

Harlan, Robert D. (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S116000, C526S117000, C526S119000, C526S160000, C526S161000, C526S943000, C502S152000, C502S155000

Reexamination Certificate

active

06924342

ABSTRACT:
A polymerization process comprises contacting one or more olefinic comonomers in the presence of at least a high molecular weight catalyst and at least a low molecular weight catalyst in a single reactor, and effectuating the polymerization of the olefinic comonomers in the reactor to obtain an olefin polymer. Preferably, both catalysts have the ability to incorporate a substantially similar amount of comonomers in the olefin polymer. The polymers produced by the process may have a relatively higher level of long chain branching while maintaining a relatively narrow molecular weight distribution, i.e., MWD less than about 6. These interpolymers may exhibit processability similar to or better than LDPE but have physical properties similar to metallocene catalyzed polymers.

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