Environmentally compatible additives for aqueous lubricants
US7514150B2 · kind B2 · utility
2Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2003 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Jul 8, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/8305
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Lubricating compositions, containing non-modified and modified multifunctional, polyionic copolymers and an aqueous lubricating medium, and methods for making and using such compositions are described herein. The lubricating compositions are applied to metal oxide surfaces, which are in contact with each other. The copolymers can serve as a surface protective boundary layer for the sliding surfaces, or they can also be used for the immobilization of further molecules, which can modify the tribological properties of the surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.