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:
Sep. 27, 1988
Filed:
Feb. 25, 1987
Kazuo Taira, Tokyo, JP;
Naoto Watanabe, Yokohama, JP;
Hiroshi Matsubayashi, Kamakura, JP;
Hiroshi Ueno, Yokosuka, JP;
Toyo Seikan Kaisha, Ltd., Tokyo, JP;
Abstract
An easily openable closure adapted to be fixed to a can body by seaming. The closure comprises a closure body of a rigid metallic material, a score formed therein reaching halfways in the thickness direction of the metallic closure body for defining a portion to be opened, and an opening tab provided near a score shearing starting point through a bonding support. The bonding support is comprised of a polyamide-type adhesive containing 6.1 to 15.0 main-chain carbon atoms on an average per amide group and having a crystallinity of 15 to 40% and a dynamic modulus, determined at a temperature of 25.degree. C. and a relative humidity of not more than 30%, of 0.8.times.10.sup.10 to 3.3.times.10 .sup.10 dynes/cm.sup.2.