Title:
RESIN-COATED METAL SHEET
Document Type and Number:
WIPO Patent Application WO/2024/053188
Kind Code:
A1
Abstract:
Provided is a resin-coated metal sheet that achieves slipperiness, scrape resistance, and ink adhesiveness with respect to a resin coating layer. This resin-coated metal sheet 1 comprises a resin coating layer 3 that is formed on at least one surface of a metal sheet 2, and that contains at least 75% by mass of a polyester resin in relation to the total resin content. The resin coating layer 3 has at least a three-layer structure including a topmost layer 3a, a middle layer 3b, and a bottommost layer 3c. The melting point of the resin coating layer 3 is 230°C to 254°C, inclusive. The topmost layer 3a contains a polyolefin. The melting point of the polyolefin is 80°C to 140°C, inclusive. When measured by Raman spectroscopy, the dispersed particle size of the polyolefin on the topmost surface and the interior in the thickness direction of the resin coating layer 3 is 0.018 µm to 5.0 µm, inclusive.
Inventors:
UJIHIRA TOMOYUKI (JP)
FUJIMOTO SOICHI (JP)
YAMANAKA YOICHIRO (JP)
FUJIMOTO SOICHI (JP)
YAMANAKA YOICHIRO (JP)
Application Number:
PCT/JP2023/021046
Publication Date:
March 14, 2024
Filing Date:
June 06, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B32B15/09; B32B27/36; B65D25/36; B65D65/40; B65D65/42
Domestic Patent References:
| WO2019116707A1 | 2019-06-20 | |||
| WO2019116706A1 | 2019-06-20 | |||
| WO2018221385A1 | 2018-12-06 |
Foreign References:
| JP2021160330A | 2021-10-11 | |||
| JP2010023442A | 2010-02-04 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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