PURPOSE: To prepare effectively a laminate contg. an ethylene-vinyl alcohol copolymer as at least one layer by incorporating a random copolymer contg. at least an ethylene component and a radical-polymerizable acid anhydride component as an adhesive layer.
CONSTITUTION: An ethylene-vinyl alcohol copolymer is obtd. by saponifying an ethylene-vinyl acetate copolymer and consists of 20-70mol% ethylene and 30-80mol% vinyl alcohol. An adhesive layer used is a random copolymer contg. at least an ethylene component and a radical-polymerizable acid anhydride component obtd. by incorporating a compd. contg. 2 or more double bonds in a molecule when polymerized. The content of the radical-polymerizable acid anhydride component in the random copolymer is pref. in the range of 0.1-5mol% and especially pref. 0.3-2mol%. When said acid anhydride is less than 0.1mol%, an interlaminar adhesive force is not sufficient and when it is above 5mol%, a profitable production thereof becomes very difficult.
INASAWA SHINTARO
YASUDA SHINICHI
