| 摘要 |
PURPOSE:To provide the titled compsn. having excellent rigidity and heat resistance and suitable for use in the production of a food tray, consisting of PP, a specified modified PP and PVA or a saponified product of an ethylene/vinyl acetate copolymer. CONSTITUTION:0.01-20wt% ethylenically unsaturatted acid or its anhydride such as maleic acid or anhydride and, if necessary, a liquid rubber having a number- average MW of 500-10,000 such as 1,2-polybutadiene are reacted with PP in the presence of a free radical generating agent at 50-150 deg.C for 5min-5hr to obtain a modified PP. 55-98wt% PP, 0.1-30wt% said modified PP and 1- 40wt% PVA having a degree of polymn. of 3,000 or below or saponified product of an ethylene/vinyl acetate copolymer are blended together. EFFECT:Moldings having excellent heat resistance and transparency and high toughness due to high flexural modulus can be obtd. |
