Invention Grant
US08727155B2 Two-piece can body made of laminated steel sheet, and method of producing the two-piece can body
有权
由层压钢板制成的两片罐体,以及两片罐体的制造方法
- Patent Title: Two-piece can body made of laminated steel sheet, and method of producing the two-piece can body
- Patent Title (中): 由层压钢板制成的两片罐体,以及两片罐体的制造方法
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Application No.: US13723957Application Date: 2012-12-21
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Publication No.: US08727155B2Publication Date: 2014-05-20
- Inventor: Yasuhide Oshima , Hiroki Iwasa , Yoshihiko Yasue , Yuka Nishihara , Katsumi Kojima , Hiroshi Kubo
- Applicant: JFE Steel Corporation
- Applicant Address: JP Tokyo
- Assignee: JFE Steel Corporation
- Current Assignee: JFE Steel Corporation
- Current Assignee Address: JP Tokyo
- Agency: Holtz Holtz Goodman & Chick, P.C.
- Priority: JP2006-291879 20061027
- Main IPC: B21D51/26
- IPC: B21D51/26

Abstract:
A can body for a two-piece can made of a laminated steel sheet, the laminated steel sheet containing a steel sheet and a copolyethylene terephthalate resin layer containing at least hyone member selected from the group consisting of isophthalic acid and cyclohexane dimethanol as a copolymer component in a proportion of 5 to 20 mol %, and having a crystallization temperature of 120° C. to 140° C. on at least one side of the steel sheet; and satisfying the following relationships: r1≦r, 0.1≦r1/R≦0.25, and 1.5≦h/(R−r)≦4, wherein r1 represents the minimum radius of the can body, r represents the maximum radius of the can body, h represents the height of the can body, and R represents the radius of the laminated steel sheet having a circular shape before shaping whose weight is the same as that of the can body. The can body has a high strain level, and does not suffer from delamination and breakage of the resin layer.
Public/Granted literature
- US20130119057A1 TWO-PIECE CAN BODY MADE OF LAMINATED STEEL SHEET, AND METHOD OF PRODUCING THE TWO-PIECE CAN BODY Public/Granted day:2013-05-16
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