Composition for metal surface treatment, metal surface treatment method, and metal material
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United States of America Patent
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May 12, 2015
Grant Date -
Sep 19, 2013
app pub date -
Sep 13, 2012
filing date -
Mar 1, 2006
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Abstract
A metal material is contacted with a treatment solution containing zirconium and/or titanium compound, and a polyamine compound having a number average molecular weight from 150 to 500,000 and containing from 0.1 mmol to 17 mmol of primary and/or secondary amino group per 1 g of solid content and at least one siloxane unit. Concentration of zirconium and/or titanium compound in the metal surface treatment composition is from 10 ppm to 10,000 ppm with respect to the metal element, and mass ratio of the zirconium and/or titanium element is from 0.1 to 100 with respect to the polyamine compound. The metal material is washed with water after contacted by the treatment solution.
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