Method for producing multilayer film

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United States of America Patent

PATENT NO 9352511
SERIAL NO

13322877

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Abstract

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An object of the invention is to provide a method for producing a laminated film comprising at least two resin films bonded together, which is capable of increasing the adhesiveness of the bonding surface and forming a laminated film with high reliability. The method for producing a laminated film according to the invention comprising at least two resin films laminated together, which comprises: a fluorination treatment step comprising bringing a fluorine and oxygen atoms-containing treatment gas into contact with at least a partial region of the surface of at least one of the two resin films to increase the adhesiveness of the region; and a bonding step comprising bonding the two resin films together using, as a bonding surface, the surface that has been brought into contact with the treatment gas.

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Patent Owner(s)

Patent OwnerAddress
STELLA CHEMIFA CORPORATIONOSAKA-SHI OSAKA 541-0044

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hashiguchi, Shinji Izumiotsu, JP 52 523
Hirano, Kazutaka Izumiotsu, JP 23 127
Yamaguchi, Terunori Izumiotsu, JP 5 3

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