Process for treating the surface of metal parts
US6063447A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1998 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Aug 5, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31692
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for treating the surface of a metal part to prepare it for drawing and to protect it temporarily against corrosion, comprising applying an aqueous treatment composition to the surface of said part and drying the aqueous composition so applied, characterized in that the aqueous composition is first obtained by mixing: PA1 an aqueous solution comprising at least one alcohol or fatty acid polyethoxylate; and PA1 an oil-in-water emulsion comprising at least 3% to 13% by volume of an oil phase comprising at least 75% to 90% by volume of at least one mineral oil and 5% to 10% by volume of at least one surfactant. The invention also relates to the metal parts so obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.