| 摘要 |
PROBLEM TO BE SOLVED: To provide a window-sealing product which realizes an extremely high sealing property using a low-cost material without deteriorating productivity. SOLUTION: The titled molded part is prepared by melt blending 100 pts.wt. ethylene/α-olefin/non-conjugated polyene copolymer rubber with from 5 to 40 pts.wt. polyolefin resin, wherein the ethylene/α-olefin/non-conjugated polyene copolymer rubber comprising ethylene, an 3-20C α-olefin and a non-conjugated polyene, has an ethylene content of from 50 to 80 mol%, exerts an intrinsic viscosity, measured in decalin at 135 deg.C, of from 2.0 to 5.0 dl/g and has an iodine number of from 10 to 40. A resin alloy ethylene/α-olefin copolymer rubber, wherein the polyolefin resin is dispersed in the ethylene/α-olefin/non-conjugated polyene copolymer rubber at an average particle size of 2 μm or smaller, is blended with from 50 to 300 pts.wt. carbon black and from 30 to 200 pts.wt. process oil. |
