US4584116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant compositions containing calcium and barium fluorides
Assignee: Arkema France SA
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Filing: 1984-08-02
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Granted: 1986-04-22
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Expires: 2004-08-02
Abstract
Abstract A lubricant composition comprising a lubricating oil having dispersed therein particles of lithium fluoride, calcium fluoride, and barium fluoride, or mixtures thereof.
Inventors
- 👤 Marc Hermant
- 👤 Dominique Basset
- 👤 Jean-Claude Razet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:27
CPC Classifications
C; C10; C10M; C10M125/00; C10M125/18; C10M133/00; C10M133/02; C10M133/04; C10M141/00; C10M141/06; C10M2201/00; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/084; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/24; C10M2215/26; C10N; C10N2040/00; C10N2040/08; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
52 words
A lubricant composition consisting essentially of a lubricating oil having dispersed therein a mixture of calcium fluoride and barium fluoride having a particle size below about 0.5 micron; said mixture containing for each 100 parts by weight thereof 60 to 35 parts calcium fluoride and, correspondingly, 40 to 65 parts barium fluoride.
Claim 2
Dependent Claim
52 words
A lubricant composition consisting essentially of a lubricating oil having dispersed therein a mixture of calcium fluoride and barium fluoride having a particle size below about 0.5 micron; said mixture containing for each 100 parts by weight thereof 60 to 35 parts calcium fluoride and, correspondingly, 40 to 65 parts barium fluoride.
Claim 3
Dependent Claim
32 words
The lubricant composition of claim 1 wherein said oil is selected from a mineral oil or synthetic oil and the composition contains an amount up to 50% by weight of said particles.
Claim 4
Dependent Claim
174 words
The lubricant composition of claim 2 also containing an organic fluorinate compound soluble in said oil and having the formula ##STR4## wherein n is an integer from 2 to 20, R 2 is hydrogen or a lower alkyl radical containing from 1 to 3 carbon atoms, x has the value of 2 or 4, R 1 and A are one of the following: A is a hydrogen atom and R 1 is a hydrogen atom, alkyl radical containing from 1 to 6 carbon atoms, an aryl radical or a cycloparaffin radical having 3 to 10 carbon atoms; or R 1 and A are identical or different alkyl radicals containing from 1 to 6 carbon atoms; or A is the group ##STR5## while R 1 is hydrogen, or an alkyl radical containing from 1 to 6 carbon atoms or the group ##STR6## R and R 1 being either a hydrogen atom or the methyl group CH 3 ; or R 1 and A together form a linear alkylene radical having 3 to 10 carbon atoms.
Claim 5
Dependent Claim
17 words
The lubricant composition of claim 3, wherein the ratio of ##EQU2## is between about 1:5 and 1:100.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-21 | 1989-10-21 | 1990-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-21 | 1993-10-21 | 1994-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-21 | 1997-10-21 | 1998-04-22 | $7700.00 | Window Closed / Lapsed |