Ethylene copolymer and uses thereof

Details Ethylene copolymer and uses thereof Ethylene copolymer and uses thereof

2005-05-10

2005-05-10

Wu, David W. (Department: 1713)

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

Synthetic resins

From hydrocarbon reactant

C525S240000, C526S905000

Reexamination Certificate

active

06891018

ABSTRACT:
An ethylene copolymer is provided which is a copolymer of ethylene and an α-olefin of 3 to 20 carbon atoms and has the following properties:(a) the melt index (MI2) at 190° C. under a load of 2.16 kg is in the range of 0.0001 to 1000 g/10 min,(b) the density is not more than 0.899 g/cm3,(c) the relationship between a vinyl group amount and MI2 of the polymer satisfies the following expression:in-line-formulae description="In-line Formulae" end="lead"?(vinyl group amount: number of vinyl groups/1000 carbon atoms)≦0.004509+0.000815×log(MI2),in-line-formulae description="In-line Formulae" end="tail"?and(d) the relationship between a vinylidene group amount and MI2 of the polymer satisfies the following expression:in-line-formulae description="In-line Formulae" end="lead"?(vinylidene group amount: number of vinylidene groups/1000 carbon atoms)≦0.013528+0.002445×log(MI2).in-line-formulae description="In-line Formulae" end="tail"?

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