BIODEGRADABLE LAMINATED FILM

PROBLEM TO BE SOLVED: To provide a biodegradable laminated film which has biodegradability and is excellent in moisture-proofing properties. SOLUTION: In the biodegradable laminated film, a moisture-proofing layer is formed on at least one side of a biaxially oriented polylactic acid film, and the m...

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Bibliographic Details
Main Authors NISHIMURA HIROSHI, INAGAKI MADOKA
Format Patent
LanguageEnglish
Published 22.12.2005
Edition7
Subjects
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
PERFORMING OPERATIONS
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To provide a biodegradable laminated film which has biodegradability and is excellent in moisture-proofing properties. SOLUTION: In the biodegradable laminated film, a moisture-proofing layer is formed on at least one side of a biaxially oriented polylactic acid film, and the moisture-proofing layer contains a biodegradable resin and natural wax. The content of the natural wax in the moisture-proofing layer is 1-100 pts. mass per 100 pts. mass of the biodegradable resin. The water vapor permeability in an atmosphere of 40°C and 100% RH of the laminated film is 50 g/(m2×day) or below. The number average molecular weight of the biodegradable resin is 20,000 or below, and the biodegradable resin is an aliphatic-aromatic copolyester. COPYRIGHT: (C)2006,JPO&NCIPI
Bibliography:Application Number: JP20040174070