| abstract |
PCT No. PCT/JP96/00990 Sec. 371 Date Nov. 12, 1996 Sec. 102(e) Date Nov. 12, 1996 PCT Filed Apr. 11, 1996 PCT Pub. No. WO96/32253 PCT Pub. Date Oct. 17, 1996At least one side of a base film is successively covered with an anchor coat layer comprising (A) a chlorine-containing resin e.g. a vinyl chloride-vinyl acetate copolymer, (B) a polyisocyanate compound and (C) a saturated polyester resin having glass transition temperature of -10 DEG C. to 20 DEG C. and being substantially unreactive to the polyisocyanate compound, and an inorganic layer such as a silicon oxide. The component (C) includes a noncrystalline saturated polyesters each having a hydroxyl value of 0 to 15 mg KOH/g or acid value of 0 to 10 mg KOH/g. The anchor coat layer may comprise about 10 to 500 parts by weight of the component (B) and 1 to 50 parts by weight of the component (C) relative to 100 parts by weight of the component (A). Such composite film inhibits deterioration of the adhesive properties and barrier properties even when exposed to severe conditions such as retort treatment. |