| 摘要 |
<p>PURPOSE: To obtain a multilayer plastic film of which the inner surface does not adhere to meat and which has a high-temperature cooling range, by combining and laminating specific resin films comprising four layers. CONSTITUTION: A first layer is constituted of an ethylene-propylene random copolymer and a second layer is constituted of a mixture of an anhydride- modified ethylene copolymer adhesive of about 20-60 wt.% of which the Vicat softening point is about 90 deg.C and an ethylene-vinyl acetate copolymer of about 40-80 wt.% containing vinyl acetate of about 4-15 wt.%. A third layer is constituted of a mixture of a hydrolytic ethylene-vinyl acetate copolymer of about 60-90 wt.% containing ethylene of about 32-52 wt.% and an amide polymer of about 10-40 wt.% and a fourth layer is constituted of a mixture of the anhydride-modified ethylene copolymer adhesive of about 10-40 wt.% of which the Vicat softening point is about 90 deg.C and the ethylene-vinyl acetate copolymer of about 60-90 wt.% containing the vinyl acetate of about 4-15 wt.% and having a melt index of about 0.9 or below. According to this constitution, a high- temperature cooling range is obtained.</p> |
