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:
Apr. 06, 2010
Filed:
Mar. 30, 2005
Yoichiro Yamanaka, Fukuyama, JP;
Takeshi Suzuki, Chiba, JP;
Hiroki Iwasa, Fukuyama, JP;
Junichi Kitagawa, Kawasaki, JP;
Toyofumi Watanabe, Chiba, JP;
Shinsuke Watanabe, Fukuyama, JP;
Mitsunori Ota, Fukuyama, JP;
Yoichiro Yamanaka, Fukuyama, JP;
Takeshi Suzuki, Chiba, JP;
Hiroki Iwasa, Fukuyama, JP;
Junichi Kitagawa, Kawasaki, JP;
Toyofumi Watanabe, Chiba, JP;
Shinsuke Watanabe, Fukuyama, JP;
Mitsunori Ota, Fukuyama, JP;
JFE Steel Corporation, Tokyo, JP;
Abstract
The resin-coated metal sheet is composed of: a metal sheet; a lower resin layer containing a hydrophilic copolyester, formed on at least one side of the metal sheet; and an upper resin layer containing a polyester containing a diol component composed of a diol derivative of 1 to 10% by mole of alicyclic compound and 99 to 90% by mole of ethylene glycol, and a dicarboxylic acid component consisting of terephthalic acid, formed on the lower resin layer. The sum of cyclic trimer of alkylene terephthalate existing in the upper resin layer and the lower resin layer is 0.9% or less by mass. Since the manufacture of food cans using the resin-coated metal sheet does not induce white haze phenomenon and retort blushing phenomenon on outer surface of the can even after retorting, the decorative appearance on outer surface of the can is not deteriorated.