Welded cans
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 25, 1995
Grant Date -
N/A
app pub date -
Dec 27, 1991
filing date -
Dec 28, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tinned steel sheet having a tin deposit obtained by evenly plating tin on the surface of a base steel sheet at a deposition rate of 0.5-1.7 g/m.sup.2 is used as a surface-treated steel sheet for forming a can body. A biaxially oriented polyester film having a thickness of 5-50 .mu.m is caused to adhere to the surface-treated steel sheet with a thermosetting resin adhesive at a temperature of 180.degree.-225.degree. C. as a protective coat. The tinned steel sheet has, on its both ends, two layers of a tin-iron alloy layer having a deposition rate of 0.35-1.60 g/m.sup.2 in terms of tin content and a tin layer having a tin deposition rate of 0.10-1.35 g/m.sup.2 at a stage after the adhesion of the polyester film but before welding. Said both ends of the surface-treated steel sheet are welded to each other, and another protective coat is applied to a portion of the inner surface, which is not covered with the first-mentioned protective coat, thereby forming a welded can.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully