Ethylene/α-olefin copolymer made with a...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

Reexamination Certificate

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C526S113000, C526S118000, C526S119000, C526S348000, C526S348100, C526S348500, C525S240000, C428S500000

Reexamination Certificate

active

07101939

ABSTRACT:
An ethylene/α-olefin copolymer comprising a component produced by a non-single-site polymerization catalyst and a component produced by a single-site polymerization catalyst, its preparation and use are described. The copolymer has an α-olefin content of 5 to 20 percent by weight and shows at least two CRYSTAF peak temperatures differing by at least 15° C. and/or at least two DSC melting peak temperatures differing by at least 15° C.

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Kyung-Jun Chu et al. &#x

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