Invention Grant
- Patent Title: Easy-open end
- Patent Title (中): 易开端
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Application No.: US12090503Application Date: 2006-09-28
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Publication No.: US08221872B2Publication Date: 2012-07-17
- Inventor: Etsuko Yaoi , Satoshi Fujita , Akio Kuroda , Kouji Katou , Toshio Sue
- Applicant: Etsuko Yaoi , Satoshi Fujita , Akio Kuroda , Kouji Katou , Toshio Sue
- Applicant Address: JP Tokyo
- Assignee: Toyo Seikan Kaisha, Ltd.
- Current Assignee: Toyo Seikan Kaisha, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2005-303995 20051019
- International Application: PCT/JP2006/319901 WO 20060928
- International Announcement: WO2007/046240 WO 20070426
- Main IPC: B32B15/08
- IPC: B32B15/08 ; B32B15/092 ; B32B27/08 ; B32B27/36 ; B32B27/38

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.
Public/Granted literature
- US20090047501A1 EASY-OPEN END Public/Granted day:2009-02-19
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