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US 11,306,397 B2Granted
Aqueous solution for metal surface treatment, treatment method for metal surface, and joined body
AssigneeKobe Steel, Ltd.
InventorsYusuke Takahashi, Satoru Takada
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Abstract
An aqueous solution for metal surface treatment includes an alkyl silicate or an oligomer thereof in a concentration of 0.005 mass % or more and less than 1 mass %, and an organic silane compound in a concentration of 0.005 mass % or more and less than 1 mass %. The aqueous solution has a pH of 2 or more and 7 or less.
Claims20
An aqueous solution, comprising:
- an alkyl silicate or an oligomer thereof in a concentration of 0.005 mass % or more and less than 1 mass %;
- and
- an organic silane compound in a concentration of 0.005 mass % or more and less than 1 mass %,
- wherein the aqueous solution has a pH of 2 or more and 7 or less, and
- wherein the organic silane compound comprises a silane compound containing a plurality of hydrolyzable trialkoxysilyl groups in a molecule, a hydrolyzed product of the silane compound, or a polymer derived from the silane compound.
2 more elements
Dependencies are inferred from the claim text.