CHEMICAL CONVERSION AGENT AND METAL SURFACE TREATMENT METHOD
First Claim
1. A chemical conversion agent comprising one, or two or more metal element(s) (A) selected from the group consisting of zirconium, titanium, and hafnium,a vanadium element (B), anda resin (C),wherein the resin (C) includes a polyvinyl alcohol-based resin (C1) consisting of at least one of polyvinyl alcohol and a derivative thereof,the value of a ratio (Wa/Wb) of the mass-based total content (Wa) of the metal element (A) to the mass-based content (Wb) of the vanadium element (B) is 0.1-15, andthe value of a ratio ((Wa+Wb)/Wc1) of the mass-based total content (Wa+Wb) of the metal element (A) and the vanadium element (B) to the mass-based total content (Wc1) of the polyvinyl alcohol-based resin (C1) is 0.25-15.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided is a chemical conversion agent that, with respect to an aluminum metal material, etc., contributes to superior corrosion and moisture resistance, contributes to superior adhesion with a laminate film, and contributes to superior hydrofluoric acid and alkali resistance. The chemical conversion agent includes: one or more type of metal element (A) selected from a group comprising of zirconium, titanium, and hafnium; vanadium element (B); and a resin (C). The resin (C) includes a polyvinyl alcohol resin (C1). The ratio (Wa/Wb) of the weight-based total content (Wa) of the metal element (A) relative to the weight-based content (Wb) of vanadium element (B) is 0.1-15, and the ratio ((Wa+Wb)/Wc1) of the weight-based total content (Wa+Wb) of the metal element (A) and the vanadium element (B) relative to the weight-based total content (Wc1) of the polyvinyl alcohol resin (C1) is 0.25-15.
-
Citations
8 Claims
-
1. A chemical conversion agent comprising one, or two or more metal element(s) (A) selected from the group consisting of zirconium, titanium, and hafnium,
a vanadium element (B), and a resin (C), wherein the resin (C) includes a polyvinyl alcohol-based resin (C1) consisting of at least one of polyvinyl alcohol and a derivative thereof, the value of a ratio (Wa/Wb) of the mass-based total content (Wa) of the metal element (A) to the mass-based content (Wb) of the vanadium element (B) is 0.1-15, and the value of a ratio ((Wa+Wb)/Wc1) of the mass-based total content (Wa+Wb) of the metal element (A) and the vanadium element (B) to the mass-based total content (Wc1) of the polyvinyl alcohol-based resin (C1) is 0.25-15.
Specification