Patent ID: 11876235
Assignee: YOULCHON CHEMICAL CO., LTD.
Field: nan (nan)
Classification: CPC nan | IPC C  H

Claim 7:
8. A method for improving formability of a secondary battery pouch film having at least an outer layer, a metal layer, a primer layer, and a sealant layer, or at least an outer layer, a metal layer, a primer layer, a melt-extrusion resin layer, and a sealant layer in this order, the method comprising:
a drying process of applying and heating a primer layer composition on the metal layer so as to dry the primer layer composition and cure at least a part of the primer layer composition,
wherein, as the primer layer, an organic solvent-based emulsion composition is used, a solvent of the organic solvent-based emulsion composition consisting of an organic solvent,
wherein the organic solvent-based emulsion composition comprises an acid-modified polypropylene and a curing agent and has a curing start temperature of 135° C. to 150° C. and a drying process temperature of 135° C. to 150° C.,
wherein, the method is not subjected to a thermal lamination process when laminating with the sealant layer after the drying process, and
wherein an aging process is performed at room temperature when laminating with the sealant layer.