Ethylene copolymers

Details Ethylene copolymers Ethylene copolymers

C - Chemistry, Metallurgy

08

F

402/581, 402/622

C08F 10/02 (2006.01) C08F 210/16 (2006.01) C08L 23/08 (2006.01)

Patent

CA 1085995

ABSTRACT OF THE DISCLOSURE The invention is a copolymer consisting essentially of ethylene and an .alpha.-olefin with 5 to 18 carbon atoms, said copolymer having (i) a density of 0.90 to 0.94 g/cm3, (ii) an intrinsic viscosity (n) of 0.8 to 4.0 dl/g, (iii) a maximum melting point, determined by differential thermal analyis, of 115 to 130°C, and (iv) a gn*(=[n]/[n]?) value of 0.05 to 0.78, in which formula [n] is the intrinsic viscosity of the copolymer and [n]? is the intrinsic viscosity of a linear polyethylene having the same weight average molecular weight determined by the light scattering method as said copolymer. The copolymer displays improved tear resistance, impact strength, transparency and heat resistance.

295766

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