The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2012
Filed:
Sep. 28, 2006
Etsuko Yaoi, Yokohama, JP;
Satoshi Fujita, Yokohama, JP;
Akio Kuroda, Chiyoda-ku, JP;
Kouji Katou, Yokohama, JP;
Toshio Sue, Yokohama, JP;
Etsuko Yaoi, Yokohama, JP;
Satoshi Fujita, Yokohama, JP;
Akio Kuroda, Chiyoda-ku, JP;
Kouji Katou, Yokohama, JP;
Toshio Sue, Yokohama, JP;
Toyo Seikan Kaisha, Ltd., Tokyo, JP;
Abstract
An easy-open end comprising a resin-coated metal plate obtained by coating a metal substrate with a anti-blocking agent-containing biaxially drawn film via a primer, wherein an important feature resides in that the anti-blocking agent in the biaxially drawn film is of a spherical shape having an average particle size of 0.5 to 2.5 μm and an average particle size ratio (long diameter/short diameter) in a range of 1.0 to 1.2, and is contained at a ratio of 0.05 to 0.5% by weight in the biaxially drawn film. Even without forming a top-coat layer, therefore, the film is not scratched or the forming-tool is not damaged by the anti-blocking agent that adheres and deposits on the forming tool. Besides, the resin coating favorably adheres to the metal plate offering excellent advantage in production and in economy.