| 摘要 |
PURPOSE:To obtain an extrusion resin compsn. having excellent extrudability, chemical resistance, etc., by mixing an ethylene/alpha-olefin copolymer, a copolymer of ethylene with a vinyl ester of a satd. carboxylic acid and a block copolymer. CONSTITUTION:40-90pts.wt. ethylene/alpha-olefin copolymer (A) having a density of 0.9-0.94g/cm<3>, 5-50pts.wt. copolymer (B) of ethylene with a vinyl ester of a satd. carboxylic acid and/or copolymer (B) of ethylene with an alkyl ester of an unsaturated carboxylic acid, and 5-50pts.wt. block copolymer (C) having an intrinsic viscosity of 0.7dl/g or above (in xylene soln. at 70 deg.C) contg. at least two arom. monoalkenyl or monoalkenylidene polymer blocks and at least one partially or wholly hydrogenated aliph. conjugated diene hydrocarbon polymer block are mixed together to obtain the desired extrusion resin compsn. |
