Title:
【発明の名称】缶端とその製作方法
Document Type and Number:
Japanese Patent JP2572086
Kind Code:
B2
Abstract:
A can end (1) made from metal for cans whose contents is under inside pressure is provided with at least one opening tab (4) partly punched from the end leaving a hinge area (6) and a relative aperture (2) formed by the partial punching, with the opening tab (4) and/or the area of the end surrounding the aperture (2) being cold formed so that the edge area (8) of aperture (2) covers the edge area (4a) of opening tab (4) on the end outside (1a). On the end inside (1b), plastisol (10) is applied in ring-form to the edge areas (4a, 8) of opening tab (4) and of aperture (2) and jellied under heating. Before its application and gelation respectively, the plastisol (10) has a viscosity eta D4441s-1 (40 DEG C.) of about 2000-2800 mPa.s, and an edge angle alpha of about 0.4-1.0 N/mm2, and a maximum elongation of 120-250%.
Inventors:
Gunther Helmut Reinhold Schmidt
Hansu Dietel Yoge
Wilhelm Reynell Zavale
Abraham Sea. Spruit
Hansu Dietel Yoge
Wilhelm Reynell Zavale
Abraham Sea. Spruit
Application Number:
JP29043187A
Publication Date:
January 16, 1997
Filing Date:
November 17, 1987
Export Citation:
Assignee:
The Broken Hill Proprietary Company Limited
International Classes:
B21D28/00; B65D17/00; B21D51/44; B21D51/46; B65D17/32; B65D17/34; B65D41/32; B65D53/06; C08L27/06; C08J5/12; B21D; B65D; (IPC1-7): B65D17/00; B21D51/44
Attorney, Agent or Firm:
Akira Asamura (3 outside)