	US 12,280,575 B2
	Film for coating metal sheet and resin coated metal sheet
Soichi Fujimoto, Tokyo (JP); Yasuhide Oshima, Tokyo (JP); and Katsumi Kojima, Tokyo (JP)
Assigned to JFE Steel Corporation, Tokyo (JP)
Appl. No. 17/286,596
Filed by JFE Steel Corporation, Tokyo (JP)
PCT Filed Oct. 21, 2019, PCT No. PCT/JP2019/041355 § 371(c)(1), (2) Date Apr. 19, 2021, PCT Pub. No. WO2020/090552, PCT Pub. Date May 7, 2020.
Claims priority of application No. 2018-204808 (JP), filed on Oct. 31, 2018.
Prior Publication US 2021/0370655 A1, Dec. 2, 2021
Int. Cl. B32B 27/36 (2006.01); B29C 48/00 (2019.01); B29C 48/08 (2019.01); B29C 48/21 (2019.01); B29C 48/88 (2019.01); B29C 55/00 (2006.01); B29C 55/04 (2006.01); B29K 67/00 (2006.01); B29L 7/00 (2006.01); B32B 15/04 (2006.01); B32B 15/09 (2006.01); B65D 25/14 (2006.01); B65D 25/34 (2006.01); B65D 65/40 (2006.01); C08J 5/18 (2006.01)

CPC B32B 27/36 (2013.01) [B29C 48/0018 (2019.02); B29C 48/022 (2019.02); B29C 48/08 (2019.02); B29C 48/21 (2019.02); B29C 48/914 (2019.02); B29C 55/005 (2013.01); B29C 55/04 (2013.01); B32B 15/04 (2013.01); B32B 15/09 (2013.01); B65D 25/14 (2013.01); B65D 25/34 (2013.01); B65D 65/40 (2013.01); C08J 5/18 (2013.01); B29K 2067/006 (2013.01); B29L 2007/008 (2013.01); B32B 2270/00 (2013.01); B32B 2307/54 (2013.01); B32B 2439/66 (2013.01); C08J 2367/02 (2013.01)]

20 Claims

1. A film for coating a metal sheet, the film satisfying that:

a ratio (E_MD/E_TD) of a Young's modulus E_MDin a lengthwise direction to a Young's modulus E_TDin a width direction is 1.1 to 4.0; and

a thermal shrinkage rate, measured by a thermo-mechanical analyzer, in both lengthwise and width directions at 200° C. is equal to or smaller than 20% and equal to or larger than 0.8%,

wherein a sum (E_MD+E_TD) of the Young's modulus E_MDin the lengthwise direction and the Young's modulus E_TDin the width direction is 3000 MPa to 8500 MPa.