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US 6,440,508 B1Granted
Laminated film, method for production thereof, bag and package using the laminated film, and method for separation thereof
AssigneeKyodo Shiko Co., Ltd.
InventorsYoshiaki Tokita, Takahiro Takagi
Life of this patent
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Abstract
A laminated film includes an outer-layer-film, a water-soluble film, and an intermediate layer interposed between the outer-layer-film and the water-soluble film. The intermediate layer contains high-pressure polyethylene oxidized to a prescribed degree on a surface thereof contiguous to the water-soluble film. The outer-layer-film and the intermediate layer adhere fast to each other. The intermediate layer and the water-soluble film directly contact each other and adhere so weakly to each other as to be peelable.
Claims11
A laminated film comprising:
- an outer-layer-film including one or more layers;
- a water-soluble film;
- and
- an intermediate layer interposed between said outer-layer-film and said water-soluble film, said intermediate layer containing high-pressure polyethylene oxidized to a prescribed degree at least on a surface thereof contiguous to said water-soluble film;
- wherein said outer-layer-film and said intermediate layer adhere fast to each other;
- and
- said intermediate layer and said water-soluble film directly contact each other and adhere so weakly to each other as to be peelable.
4 more elements
Dependencies are inferred from the claim text.