초록 ▼

A laminate of an oriented resin film and a metal sheet substrate is used in the manufacture of can stock, the intensity of orientation of the resin film being greater along the bottom of the can and lesser along the can side wall. This construction is obtained by locally cooling, during lamination,

A laminate of an oriented resin film and a metal sheet substrate is used in the manufacture of can stock, the intensity of orientation of the resin film being greater along the bottom of the can and lesser along the can side wall. This construction is obtained by locally cooling, during lamination, that part of the heated metal substrate which will become the bottom wall of the resultant can.

대표청구항 ▼

[ What is claimed is:] [1.] A method of manufacturing a deformable laminated sheet, wherein the sheet comprises a metal substrate and a crystal oriented thermoplastic resin film laminated to said metal substrate such that the degree of crystal orientation of said resin film varies over surface of th

[ What is claimed is:] [1.] A method of manufacturing a deformable laminated sheet, wherein the sheet comprises a metal substrate and a crystal oriented thermoplastic resin film laminated to said metal substrate such that the degree of crystal orientation of said resin film varies over surface of the sheet; those areas of the sheet which are to be lightly deformed having a higher degree of orientation than those areas of the sheet intended to be more heavily deformed when the deformable sheet is formed into a three-dimensional object; said method of forming said laminate sheet comprising:heating the metal substrate,contacting said heated metal substrate with a biaxially oriented thermoplastic resin film and pressing said resin film to said metal substrate to provide a laminate, andpreferentially cooling portions of the metal substrate or the laminate to decrease the loss of orientation of the thermoplastic resin film in those areas which are to have a higher degree of crystal orientation.