Ethylene polymers and copolymers with high optical opacity

Details Ethylene polymers and copolymers with high optical opacity Ethylene polymers and copolymers with high optical opacity

2006-08-22

2006-08-22

Choi, Ling-Sui (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S348500, C526S348100, C526S348000

Reexamination Certificate

active

07094857

ABSTRACT:
This invention relates to the field of metal-catalyzed olefin polymerization methods and the polymers and films prepared therefrom. In one aspect, this invention provides polyethylene and ethylene/α-olefin copolymers formed in the presence of tightly-bridged metallocene catalyst, organoaluminum cocatalyst, and a chemically-treated solid oxide, and optionally in the presence of additional cocatalysts. The resins and films prepared from these polymers exhibit high haze values, low clarity values, and a low coefficient of friction.

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