Treatment of metal with derivative of poly-alkenylphenol
US4517028A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 1983 |
| Grant date | May 14, 1985 |
| Priority date | — |
| Expiry date | May 9, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D3/102
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A metal surface is treated by contacting the surface with a solution comprising an effective amount of a soluble or dispersible treatment compound selected from the group consisting of a polymer having the following general formula, acid salts thereof, and mixtures thereof: ##STR1## where: R.sub.1 through R.sub.3 are hydrogen or an alkyl group having from 1 to about 5 carbon atoms; PA1 each Y is hydrogen, Z, CR.sub.4 R.sub.5 OR.sub.6, CH.sub.2 Cl, or an alkyl or aryl group having from 1 to 18 carbon atoms; Z is ##STR2## R.sub.4 through R.sub.10 are hydrogen, or an alkyl, aryl, hydroxy-alkyl, amino-alkyl, mercapto-alkyl or phospho-alkyl moiety, said R.sub.4 through R.sub.10 being of carbon chain lengths up to a length at which the compound is not soluble or dispersible; and PA1 n is from 2 up to a number at which the polymer is not soluble or dispersible. Preferably, the solution is an aqueous solution and "Z" moieties are present in sufficient amount that the compound is water soluble or water dispersible. Metal surfaces contacted with the solution have enhanced corrosion resistance and paint adhesion characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.