Lubricant for powder metallurgy and metal powder compositions containing said lubricant
US10975326B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2018 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Jul 12, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A particulate composite lubricant for powder metallurgy is provided. It includes: first discrete particles comprising Montan acid ester wax and at least one fatty amide wax including at least one of: a fatty primary monoamide wax and a fatty bisamide wax. In another embodiment, the particulate composite lubricant for powder metallurgy includes first discrete particles comprising Montan acid ester wax and second discrete particles comprising an organic, metal-free pulverulent lubricant selected from the group consisting of fatty bisamide waxes, fatty monoamide waxes, glycerides, Montan acid ester waxes, paraffin wax, polyolefines, polyamides, polyesters, and mixtures thereof, wherein the particulate composite lubricant comprises at least one fatty amide wax including at least one of a fatty monoamide wax and a fatty bisamide wax.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.