Method for forming chromium-free conversion coating
US5693371A · kind A · utility
8Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1996 |
| Grant date | Dec 2, 1997 |
| Priority date | — |
| Expiry date | Oct 16, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D163/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods for providing a conversion coating to a metal surface are provided. The methods comprise applying to a metal surface an aqueous composition comprising a diglycidyl ether of Bisphenol A, a fluoacid, and a silicon compound containing a hydrolyzable group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.