PURPOSE: To improve adhesive strength, moisture resistance at high temps. and high humidities, etc., by bonding synthetic resin films, such as those of polyethylene terephthalate, through the use of a thermoplastic polyester adhesive to which a vinylidene chloride resin has been added.
CONSTITUTION: 0.01-20wt.% vinylidene chloride resin is added to a polyester adhesive, such as a polyethylene terephthalate having a portion of the ethylene glycol component modified by a polyglycol or the like, thereby obtaining a thermoplastic polyester adhesive. A pref. example of the vinylidene chloride resin is a copolymer of a vinylidene chloride resin as a principal component with acrylonitrile, etc. Using this thermoplastic polyester adhesive, polyethylene terephthalate films each having a thickness of about 20-200μ are bonded together at an adhesive coating thickness of about 5-50μm.
FUKUMURA RYUJI
NAKANO KUNIHIRO
KAMAKURA TAKASHI
