Metal product with excellent moldability surface-treated with alkali-soluble lubricant
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United States of America Patent
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Issued Date -
Feb 19, 2004
app pub date -
May 15, 2003
filing date -
Nov 16, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A surface-lubricated metal product, with excellent shapability, comprising a metal having coated on both surfaces, or one surface, thereof an alkali-soluble lubricating film mainly comprising an alkali-soluble polyurethane aqueous composition containing a carboxyl group or a sulfonic acid group within the molecule, and a lubricating function-imparting agent in an amount of 1 to 30 mass % based on the alkali-soluble polyurethane aqueous composition, the film being coated to have a film thickness of 0.5 to 10 .mu.m and the elastic modulus of the film after coating being 0.5 to 20 GPa at 25.degree. C.
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