Fluorine-containing phosphate ester, its preparation and its use for preventing rust
US5132446A · kind A · utility
21Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1990 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Oct 25, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2030/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fluorine-containing phosphate ester of the formula: ##STR1## wherein R.sub.f is a group containing a perfluoroalkyl polyether group of the formula: EQU F(CF.sub.2 CF.sub.2 CF.sub.2 O).sub.m CF.sub.2 CF.sub.2 -- wherein m is 2 to 200, and n is an integer of 1 to 3 is used as a rust preventive which can be homogeneously mixed with a fluorine-containing grease.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.