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:
Nov. 11, 2025
Filed:
Jul. 31, 2020
Jfe Steel Corporation, Tokyo, JP;
Tomonari Hiraguchi, Tokyo, JP;
Junichi Kitagawa, Tokyo, JP;
Yuya Kawai, Tokyo, JP;
Soichi Fujimoto, Tokyo, JP;
Yasuhide Oshima, Tokyo, JP;
JFE STEEL CORPORATION, Tokyo, JP;
Abstract
A resin coated metal sheet includes: a metal sheet; and a resin layer formed on at least one face of the metal sheet. A movable amorphous amount of the resin layer measured by a temperature modulated differential scanning calorimeter being 30% to 46%. An intensity ratio I/Ibetween intensity (I) of a peak attributable to a trans structure of methylene groups in polyethylene terephthalate (PET) around 1,096 cmdetermined from laser Raman spectroscopic analysis measured by making a plane of polarization of linearly polarized laser light incident on a thickness direction section of the resin coating layer perpendicularly to a thickness direction and intensity (I) of a peak attributable to a gauche structure of methylene groups in PET around 1,119 cmdetermined from the laser Raman spectroscopic analysis being 1.1 or more and less than 1.5 at a position with a distance of 1 μm from the metal sheet.