COMPOSITE BIAXIALLY ORIENTED POLYPROPYLENE FILM

• Main Authors: KANBE KEIICHI, ISHII KENTARO
• Format: Patent
• Language: English
• Published: 07.01.2000
• Edition: 7
• 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

PROBLEM TO BE SOLVED: To prevent occurrence of a curl without complicated work such as a reverse curl or the like and to upgrade gas shut-off properties by laminating ethylene-vinyl acetate copolymer saponified layers on both surfaces of a biaxially oriented film base layer containing polypropylene...