发明授权
- 专利标题: Multicoated steel sheet susceptible to cationic electrodeposition coating
- 专利标题(中): 复合钢板不适用于阳极电沉积涂料
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申请号: US78622申请日: 1987-07-28
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公开(公告)号: US5102746A公开(公告)日: 1992-04-07
- 发明人: Yoshio Shindou , Motoo Kabeya
- 申请人: Yoshio Shindou , Motoo Kabeya
- 申请人地址: JPX Tokyo
- 专利权人: Nippon Steel Corporation
- 当前专利权人: Nippon Steel Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX61-180943 19860731
- 主分类号: B32B15/08
- IPC分类号: B32B15/08 ; B05D7/14 ; C08K3/36 ; C09D175/04 ; C09D177/00 ; C23C22/30 ; C23C28/00 ; C25D11/38 ; C25D13/00
摘要:
This invention provides an organic multicoated steel sheet susceptible to cationic electrodeposition coating which comprises a zinc or zinc alloy plated steel sheet and as a first layer provided on the surface of said plated steel sheet a sparely soluble chromate film of 1-30% in water soluble matter, 0.01-1.0 in Cr.sup.6+ /Cr.sup.3+ ratio and 10-150 mg/m.sup.2 in total chromium application amount on one surface and as a second layer provided said first layer a solid film having a thickness of 0.3-5 .mu.m of a solvent type coating composition having the following composition based on the weight of non-volatile matter:(a) 30-90% of an urethanated epoxy ester resin having a number-average molecular weight of 300-100,000,(b) 5-40% of a hydrophilic polyamide resin having a polymerization degree of 50-1,000(c) 5-40% of a silica particle of 1-100 m.mu. in average particle size and(d) 1-20% of a polyethylene wax having a molecular weight of 1,000-10,000.
公开/授权文献
- US5879017A Pedaling efficiency 公开/授权日:1999-03-09
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