LAMINATE STEEL SHEET FOR TWO-PIECE CAN, METHOD FOR MANUFACTURE OF TWO-PIECE CAN, AND TWO-PIECE LAMINATE CAN

摘要

The laminated steel sheet for two-piece can satisfies the relation of the height h of the final formed body, the maximum radius r thereof, the minimum radius d thereof, with the radius R of circular disk, before forming, having the same weight to that of the final formed body, as [0.1 ‰ d/R ‰ 0.25] and [1.5 ‰ h/(R - r) ‰ 4]. The laminated steel sheet has a polyester resin layer prepared by polycondensation of a dicarboxylic acid component and a diol component. The dicarboxylic component has terephthalic acid as the main ingredient, and the diol component has ethylene glycol and/or butylene glycol as the main ingredient. The quantity of copolymerizing ingredients is ranging from 8 to 16% by mole. The plane orientation factor of the resin is 0.06 or less.