Patent ID: 8221576
Filing Date: 2012-07-17
Classification: B29C,B29K,B29L,B32B,H01M,Y02E,Y10T

Abstract:
1. A production method of a packaging material for electronic component cases, the production method comprising: a temporary bonding which temporarily bonds a first sheet comprising a thermoplastic resin non-oriented film layer and a thermoplastic adhesive resin layer laminated on one surface of the thermoplastic resin non-oriented film layer and a second sheet comprising a heat resistant resin oriented film layer and an aluminum foil layer laminated on one surface of the heat resistant resin oriented film layer by passing the first sheet and the second sheet between a pair of rolls in a state in which the thermoplastic adhesive resin layer and the aluminum foil layer are brought into contact with each other to press the thermoplastic adhesive resin layer and the aluminum foil layer while heating in a state in which the thermoplastic adhesive resin does not melt to thereby obtain a pre-laminated sheet; and a complete bonding which integrally bonds the first sheet and the second sheet by heating the pre-laminated sheet to melt the thermoplastic adhesive resin, wherein at the temporary bonding, a pre-bonded sheet obtained by pressing the first sheet and the second sheet with the pair of rolls is cooled by bringing into contact with a cooling roll to obtain the pre-laminated sheet, and at the complete bonding, an integrally bonded sheet obtained by integrally bonding the first sheet and the second sheet is cooled by bringing into contact with a cooling roll.