| 摘要 |
<p>PURPOSE:A resin composition having improved melt moldability with a small surging phenomenon and fish eye, obtained by blending plural kinds of ethylene-vinyl acetate copolymers having different ethylene content, specific properties, e.g., saponification value, etc. in a specfied composition. CONSTITUTION:In plural kind of saponified ethylene-vinyl acetate copolymers having different ethylene content, copolymers having ethylene content 20-55mol%, saponification values of vinyl acetate component not less than 80mol% and melt tension not less than 0.1g are blended in molten state, to prepare a resin composition. The melt curve of the composition by a differential scanning calorimetry shows practically a single peak, and when a saponified copolymer in the composition in the largest amount is regarded as A1 and a saponified copolymer in the second largest amount is regarded as A2, a weight ratio of A1 to A2 of 95:5-50:50 and the difference of the ethylene content of A1 and A2 is not less than 3mol%.</p> |
