Title:
LAMINATED STEEL HAVING EXTREMELY LOW INTERFACE BUBBLE RATE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2019/114641
Kind Code:
A1
Abstract:
Laminated steel having a low interface bubble rate, comprising: a substrate with a surface roughness of 0.15-0.25 μm and a modified flexible polyester film thermally laminated onto the surface of the substrate. The modified flexible polyester film is obtained by performing copolymerization modification on ethylene terephthalate with low molecular aliphatic polyester. A method for manufacturing the laminated steel having an extremely low interface bubble rate, comprising the steps of: (1) preheating and then heating the substrate; (2) making the modified flexible polyester film at room temperature, and then thermally laminating same onto the substrate; and (3) cooling and rolling. The laminated steel having a low interface bubble rate is made of the substrate with a low surface roughness and the modified flexible polyester thermally laminated onto the surface of the substrate, so that the laminated steel has the low interface bubble ratio, high product surface quality, excellent adhesion property, and is applicable to machine-shaping of a deep-drawn container.
Inventors:
WANG ZHANGWEI (CN)
WEI JUNSHENG (CN)
XIE LONG (CN)
CHEN HONGXING (CN)
WEI JUNSHENG (CN)
XIE LONG (CN)
CHEN HONGXING (CN)
Application Number:
PCT/CN2018/120006
Publication Date:
June 20, 2019
Filing Date:
December 10, 2018
Export Citation:
Assignee:
BAOSHAN IRON & STEEL (CN)
International Classes:
B32B37/06; B29C45/27; B32B5/16; B32B7/02; B32B37/10; B32B38/16; C08K3/00; C08L67/02; C08L69/00
Foreign References:
| CN102431269A | 2012-05-02 | |||
| CN101142277A | 2008-03-12 | |||
| US20120082844A1 | 2012-04-05 | |||
| CN1201420A | 1998-12-09 | |||
| CN1212651A | 1999-03-31 |
Other References:
See also references of EP 3725518A4
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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