Blended polyethylene-polystyrene compositions suitable for preparation of closed cell foam products

作者: Tsuneo Hoki , Nobuo Miura

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摘要: Ethylenic polymer/styrenic polymer blend foams are prepared from blends of (1) an ethylenic resin having a density 0.915 to 0.930 g/cm3 and melt index 0.2 2.6 grams/10 minutes (2) styrenic flow rate 1.4 18 minutes. Foams excellent overall combination properties obtained when the density, D, such is in range 10 40 kg/m3 25 percent compressive strength, F, kg/cm2 0.013D1.15 0.024D1.15 ratio, R, employed divided by 7 90 content, Y, said blend, parts weight based upon 100 resin, satisfies following requirement: 10≦Y≦3.94.7+1.18R-294.1 log (D).