Fluorinated polytetramethylene glycol (PTMG) with diepoxide endgroups as magnetic lubricants
US8628868B2 · kind B2 · utility
1Cited by
11References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 2011 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Mar 19, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1164
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A surface agent includes two end portions and a middle portion disposed between the end portions. The end portions include a terminal section and a midsection. The terminal section includes at least one surface active functional group. The midsection includes at least one perfluoroethyl ether unit. The middle portion includes at least one perfluorobutyl ether unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.