Title:
DRAWN/IRONED CAN AND COATED METAL SHEET FOR DRAWN/IRONED CANS
Document Type and Number:
WIPO Patent Application WO/2021/230210
Kind Code:
A1
Abstract:
The present invention relates to a drawn/ironed can which has an inner coating film at least on the can inner surface, wherein: the inner coating film contains a polyester resin and a curing agent; and the stress relaxation ratio of the inner coating film on the can bottom after the lapse of 10 minutes at 1% elongation under the test condition of 100°C is 50% or more. Consequently, the present invention effectively prevents metal exposure due to rough processing such as drawing and ironing as well as coating film separation due to a heat treatment after shaping.
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Inventors:
YAMAMOTO HIROMI (JP)
KASHIWAKURA TAKUYA (JP)
SAKURAGI ARATA (JP)
ZHANG NAN (JP)
KASHIWAKURA TAKUYA (JP)
SAKURAGI ARATA (JP)
ZHANG NAN (JP)
Application Number:
PCT/JP2021/017740
Publication Date:
November 18, 2021
Filing Date:
May 10, 2021
Export Citation:
Assignee:
TOYO SEIKAN GROUP HOLDINGS LTD (JP)
International Classes:
B65D1/28; B21D22/28; B32B1/02; B32B1/08; B32B15/09; B65D1/12; B21D51/26
Domestic Patent References:
| WO2016186138A1 | 2016-11-24 |
Foreign References:
| JP2003034322A | 2003-02-04 | |||
| JP2002307604A | 2002-10-23 | |||
| JP2019131275A | 2019-08-08 | |||
| JP2015089643A | 2015-05-11 | |||
| JP2019155352A | 2019-09-19 | |||
| JP2007045115A | 2007-02-22 | |||
| JP2001353812A | 2001-12-25 | |||
| JP3872998B2 | 2007-01-24 |
Attorney, Agent or Firm:
ONO, Hisazumi et al. (JP)
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