Invention Grant
- Patent Title: Polyester resin-coated metal sheet and container using same
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Application No.: US15737267Application Date: 2016-02-19
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Publication No.: US11433647B2Publication Date: 2022-09-06
- Inventor: Kunihiro Yoshimura , Shinichi Taya , Tomoko Manita
- Applicant: TOYO KOHAN CO., LTD. , TOYO SEIKAN CO., LTD.
- Applicant Address: JP Tokyo; JP Shinagawa-ku
- Assignee: TOYO KOHAN CO., LTD.,TOYO SEIKAN CO., LTD.
- Current Assignee: TOYO KOHAN CO., LTD.,TOYO SEIKAN CO., LTD.
- Current Assignee Address: JP Tokyo; JP Shinagawa-ku
- Agency: Intellectual Property Law Group LLP
- Priority: JPJP2015-121267 20150616
- International Application: PCT/JP2016/054928 WO 20160219
- International Announcement: WO2016/203785 WO 20161222
- Main IPC: B32B15/09
- IPC: B32B15/09 ; B65D1/12 ; C08L67/02 ; B65D1/00 ; C08L71/08

Abstract:
[Problem] To provide a polyester resin-coated metal sheet which has excellent coating material adhesion capable of withstanding severe forming processing while retaining high decorative property and photoluminescence property and a container using the same. [Solution] The polyester resin-coated metal sheet of the present invention includes a metal sheet, and a non-oriented polyester resin formed of a plurality of layers provided on at least one surface of the metal sheet. A surface layer and an adjacent layer in contact with the surface layer, of the plurality of layers, have a difference therebetween in melting temperature of not less than 10° C., and a difference in tensile stress at an elongation of 250% under an environmental temperature of 70° C. of less than 3 MPa in tensile tests in a single-layer film state corresponding to each layer, and the surface layer contains fine particles.
Public/Granted literature
- US20180170010A1 POLYESTER RESIN-COATED METAL SHEET AND CONTAINER USING SAME Public/Granted day:2018-06-21
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