Patent ID: 7259211
Filing Date: 2007-08-21
Classification: C08F

Abstract:
1. An ethylene ternary copolymer (A), which is a copolymer of ethylene, propylene or 1-butene and a higher α-olefin having 6 to 20 carbon atoms, wherein; (i) the content of ethylene (the ratio of a repeat unit derived from ethylene) is 75 to 85 mol %, the content of propylene and/or 1-butene (the ratio of repeat units derived from propylene and/or 1-butene) is 11 to 18 mol % and the content of a higher α-olefin having 6 to 20 carbon atoms (the ratio of a repeat unit derived from a higher α-olefin) is 2 to 9 mol % (where the total ratio of ethylene, propylene or 1-butene and the higher α-olefin having 6 to 20 carbon atoms is 100 mol %); (ii) the molar ratio of the higher α-olefin having 6 to 20 carbon atoms to the structural units except for ethylene (any one of propylene and 1-butene and the higher α-olefin having 6 to 20 carbon atoms) is 1/10 to 5/10; (iii) the ethylene ternary copolymer has a density of 0.857 to 0.880 g/cm (iv) the ethylene ternary copolymer has a melt flow rate (MFR) is 0.1 to 50.0 g/10 min at 190° C. under a load of 2.16 kg.