Corrosion inhibiting polyalkylene glycol-based lubricant compositions
US9057038B2 · kind B2 · utility
1Cited by
0References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2011 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Dec 25, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Lubricant compositions including a random or block copolymer first high-EO content polyalkylene glycol, a random copolymer second polyalkylene glycol based on propylene oxide and butylene oxide or a second polyalkylene homopolymer having propylene oxide or butylenes oxide units and at least one corrosion inhibitor selected from the group of sarcosines, amine phosphates, and calcium dinonylnaphthalenesulfonate/carboxylates are provided. Lubricant compositions for extreme conditions are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.