Micro-emulsion drawing fluids for steel and aluminum
US4915859A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Sep 16, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/01
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A drawing and stamping extreme pressure lubricant for steel and aluminum which comprises a water-in-oil micro-emulsion which consists essentially of about 2 to 30 percent of a 500 to 3,000 s.u.s. hydrocarbon oil and suitable emulsifiers and stabilizers used as the base for the emulsion including tall oil fatty acids, triethanolamine soaps, petroleum sulfonates, and non-ionic emulsifiers. By substituting an ethoxylated vegetable oil, such as caster oil, etc., for the hydrocarbon oil in the above formulation, a second extreme pressure lubricant is arrived at. Thus, this lubricant consists of 2 to 30 percent of an oxidized vegetable oil polymer where the oxidized portion is 4 to 30 moles selected from a group consisting of ethylene oxide (EO), propylene oxide (PO), and ethylene/propylene oxide (EO/PO) units of vegetable oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.