Title:
ポリエステル樹脂被覆金属板、ポリエステル樹脂被覆金属板の製造方法、そのポリエステル樹脂被覆金属板からなる容器及び容器蓋
Document Type and Number:
Japanese Patent JP7080125
Kind Code:
B2
Abstract:
[Problem] To provide a polyester-resin-coated metal sheet in a beverage can, a food can, or another such container and/or a container lid, the polyester-resin-coated metal sheet being exceptional in terms of impact resistance, moldability, retort adhesion, and other such properties while also making it possible to suppress the occurrence of retort blushing (formation of white spots). [Solution] A polyester-resin-coated metal sheet characterized by having a metal sheet 1 and a polybutylene terephthalate layer A laminated so as to be in contact with at least one side of the metal sheet 1, the ratio R of the X-ray diffraction intensity of a (100) surface and the X-ray diffraction intensity of a (1-11) surface of the polybutylene terephthalate layer A being within the range of 1.3-6.6. In the X-ray diffraction intensity of the (100) surface, the diffraction angle 2θ has a maximum value confirmed to be in the range of 23.0-24.0°. In the X-ray diffraction intensity of the (1-11) surface, the diffraction angle 2θ has a maximum value confirmed to be in the range of 25.0-26.0°. The ratio R of the X-ray diffraction intensities satisfies the relationship R = (diffraction intensity of (100) surface)/(diffraction intensity of (1-11) surface).
Inventors:
Tomoyasu Takenaga
Suenaga Masami
Satoshi Kawamura
Kosuke Sasaki
Suenaga Masami
Satoshi Kawamura
Kosuke Sasaki
Application Number:
JP2018142939A
Publication Date:
June 03, 2022
Filing Date:
July 30, 2018
Export Citation:
Assignee:
TOYO KOHAN CO.,LTD.
International Classes:
B32B15/09; B65D1/00; B65D8/16
Domestic Patent References:
| JP2013095071A | ||||
| JP2003081241A | ||||
| JP2007090667A | ||||
| JP2006326902A | ||||
| JP2015134875A |
Foreign References:
| WO2016159260A1 | ||||
| US5149389 |
Attorney, Agent or Firm:
Patent business corporation Ota patent office