Butene-1 copolymer

Details Butene-1 copolymer Butene-1 copolymer

C - Chemistry, Metallurgy

08

F

400/2058, 402/62

C08F 10/08 (2006.01) C08F 4/64 (2006.01)

Patent

CA 1312699

ABSTRACT The invention is concerned with a butene-1 copolymer containing propylene units and butene-1 units within a molar ratio from 1 : 99 to 35 : 65 in which the intrinsic viscosity for the copolymer is within a range from 0.9 to 7.2 dl/g, the ratio of weight average molecular weight/number average molecular weight is within a range from 4 to 15, the temperature difference between the highest value and the lowest value of the melting point of the copolymer measured by differential thermal scanning analysis is within a range from 2 to 40°C, the pro- pylene block property of the copolymer measured by NMR spectroscopy is not more than 0.01, and the content of the boiling diethyl ether soluble ingre- dient in the copolymer is within a range from 1 to 45% by weight. The butene-1 copolymer of the invention has excellent workability and mechanical properties.

573770

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