Title:
METALLIC SHEET COVERED WITH POLYESTER RESIN FILM AND HAVING HIGH WORKABILITY, AND METHOD OF MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/1997/037846
Kind Code:
A1
Abstract:
A metallic sheet covered with a polyester resin film, having a high workability and applicable to use requiring a severe working such as drawing, drawing and ironing, thin wall drawing, and ironing after thin wall drawing, and a method of manufacturing the same. A metallic sheet heated above a fusing point of a polyester resin is contacted with a polyester resin film, a pair of laminate rolls are used to clamp the both therebetween to effect compression-bonding and covering, during which time the metallic sheet is cooled at a cooling rate of at least 600 �C/sec., whereby the metallic sheet covered with the polyester resin film has an actual stress of 3.0 to 15.0 kg/mm producing a true strain of 1.0 measured at 75 �C on the polyester resin film after covering.
Inventors:
IWASHITA HIROYUKI (JP)
GOTOH FUMIKO (JP)
TANAKA ATSUO (JP)
GOTOH FUMIKO (JP)
TANAKA ATSUO (JP)
Application Number:
PCT/JP1997/001242
Publication Date:
October 16, 1997
Filing Date:
April 10, 1997
Export Citation:
Assignee:
TOYO KOHAN CO LTD (JP)
IWASHITA HIROYUKI (JP)
GOTOH FUMIKO (JP)
TANAKA ATSUO (JP)
IWASHITA HIROYUKI (JP)
GOTOH FUMIKO (JP)
TANAKA ATSUO (JP)
International Classes:
B32B15/08; B32B38/12; (IPC1-7): B32B15/08
Foreign References:
| JPH01180336A | 1989-07-18 | |||
| JPH02155642A | 1990-06-14 |
Other References:
See also references of EP 0908301A4
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