Metal surface treating agent
US6767413B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2002 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | Jul 30, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L61/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a non-chromium metal surface treating agent which has excellent adhesion with a coating and corrosion resistance, and also has excellent workability and stability. A metal surface treating agent comprisinga water-soluble zirconium compound, a water-soluble or water-dispersant acrylic resin and a water-soluble or water-dispersant thermosetting crosslinking agent,wherein said water-soluble zirconium compound has a zirconium content of 500 to 15000 ppm on a mass basis,said acrylic resin has an acid value of solid matter of 150 to 740 mgKOH/g, a hydroxyl value of solid matter of 24 to 240 mgKOH/g, and a solid matter content of 500 to 30000 ppm on a mass basis, andsaid thermosetting crosslinking agent has a solid matter content of 125 to 7500 ppm on a mass basis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.