Title:
BLACK-COATED STEEL SHEET, PROCESSED ARTICLE, AND PANEL FOR THIN-SCREEN TELEVISION SET
Document Type and Number:
WIPO Patent Application WO/2010/030022
Kind Code:
A1
Abstract:
A thin black-coated steel sheet having good bending workability and good appearance after pressing. The steel sheet has a zinc plating layer, a chemical conversion coating film formed on the plating layer and containing no chromium, and a colored single organic coating film formed on the chemical conversion coating film and containing a polyester resin having a hydroxyl number of not less than 10 KOHmg/g, an imino group-containing melamine resin and 5-15% by mass of carbon black. The organic coating film is formed so as to have a glass transition temperature (Tg) of not less than 40˚C, a thickness of not more than 10 μm and a hardness of not less than 200 N/mm2.
Inventors:
TADA CHIYOKO (JP)
OGATA HIROYUKI (JP)
OGATA HIROYUKI (JP)
Application Number:
PCT/JP2009/065982
Publication Date:
March 18, 2010
Filing Date:
September 08, 2009
Export Citation:
Assignee:
JFE STEEL CORP (JP)
TADA CHIYOKO (JP)
OGATA HIROYUKI (JP)
TADA CHIYOKO (JP)
OGATA HIROYUKI (JP)
International Classes:
C23C28/00; B32B15/09; C09D7/48; C09D7/61; H04N5/64
Foreign References:
JP2007269010A | 2007-10-18 | |||
JP2005052997A | 2005-03-03 | |||
JP2005153337A | 2005-06-16 |
Attorney, Agent or Firm:
OCHIAI, Kenichiro (JP)
Ken-ichiro Ochiai (JP)
Ken-ichiro Ochiai (JP)
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