US4289636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous lubricant compositions
Assignee: Mobil Oil AS
•
Filing: 1979-10-01
•
Granted: 1981-09-15
•
Expires: 1999-10-01
Abstract
Abstract Improved water soluble lubricant compositions are provided by incorporating therein amides derived from alkylamines and succinic, tetrahydrophthalic or tetrahydrofuran tetracarboxylic acids.
Inventors
- 👤 Robert H. Davis
- 👤 Alfred B. Piotrowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:12
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2201/08; C10M2201/082; C10M2201/083; C10M2201/087; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/04; C10M2207/042; C10M2207/044; C10M2207/08; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/107; C10M2211/00; C10M2211/04; C10M2211/042; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/08; C10M2215/082; C10M2215/12; C10M2215/122; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2227/00; C10M2227/06; C10M2227/061; C10N; C10N2040/00; C10N2040/20; C10N2040/22; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
68 words
An improved water-soluble lubricant comprising an effective anti-corrosion or anti-rust amount of a water-soluble amide derived from the reaction of a C 1 -C 30 primary alkyl amine or a C 1 -C 30 secondary alkyl amine with a member selected from the group consisting of tetrahydrophthalic acid, tetrahydrofuran tetracarboxylic acid, tetrahydrophthalic acid anhydride and tetrahydrofuran tetracarboxylic acid anhydride and water to make the balance of the composition.
Claim 2
Dependent Claim
68 words
An improved water-soluble lubricant comprising an effective anti-corrosion or anti-rust amount of a water-soluble amide derived from the reaction of a C 1 -C 30 primary alkyl amine or a C 1 -C 30 secondary alkyl amine with a member selected from the group consisting of tetrahydrophthalic acid, tetrahydrofuran tetracarboxylic acid, tetrahydrophthalic acid anhydride and tetrahydrofuran tetracarboxylic acid anhydride and water to make the balance of the composition.
Claim 3
Dependent Claim
10 words
The lubricant of claim 1 wherein said amine is di-2-ethylhexylamine.
Claim 4
Dependent Claim
19 words
The lubricant of claim 2 wherein the amide is derived from said amine and a tetrahydrophthalic acid or anhydride.
Claim 5
Dependent Claim
13 words
The lubricant of claim 2 wherein said amide is mono-di-2-ethylhexylamide of cis-1,2,3,6,-tetrahydrophthalic acid.
Claim 6
Dependent Claim
20 words
The lubricant of claim 2 wherein the amide is derived from said amine and a tetrahydrofuran tetracarboxylic acid or dianhydride.
Claim 7
Dependent Claim
13 words
The lubricant of claim 5 wherein said amide is di-di-2-ethylhexylamide of tetrahydrofuran-2,3,4,5-tetracarboxylic acid.
Claim 8
Dependent Claim
95 words
A water-soluble lubricant composition comprising about 5-40 wt. % of a water-soluble amide derived from the reaction of a C 1 -C 30 primary or secondary alkyl amine and a member selected from the group consisting of tetrahydrophthalic acid tetrahydrofuran tetracarboxylic acid tetrahydrophthalic acid anhydride and tetrahydrofuran tetracarboxylic acid anhydride, 5-50 wt. % of a water-soluble mono-, di- or tri-alkanolamine, about 0.5 to 20 wt. % of a water-soluble polyoxyalkylene glycol containing at least one homopolyalkylene unit having a unit weight of at least about 800 and water to make the balance of the composition.
Claim 9
Dependent Claim
95 words
A water-soluble lubricant composition comprising about 5-40 wt. % of a water-soluble amide derived from the reaction of a C 1 -C 30 primary or secondary alkyl amine and a member selected from the group consisting of tetrahydrophthalic acid tetrahydrofuran tetracarboxylic acid tetrahydrophthalic acid anhydride and tetrahydrofuran tetracarboxylic acid anhydride, 5-50 wt. % of a water-soluble mono-, di- or tri-alkanolamine, about 0.5 to 20 wt. % of a water-soluble polyoxyalkylene glycol containing at least one homopolyalkylene unit having a unit weight of at least about 800 and water to make the balance of the composition.
Claim 10
Dependent Claim
29 words
The composition of claim 7 having about 15-30 wt. % of the amide, about 20-40 wt. % of the amine and about 0.5-3 wt. % of the polyoxyalkylene glycol.
Claim 11
Dependent Claim
16 words
The lubricant of claim 7 wherein the glycol is a copolymer of ethylene and propylene oxides.
Claim 12
Dependent Claim
10 words
The lubricant of claim 7 wherein the alkanolamine is diethanolamine.
Claim 13
Dependent Claim
10 words
The lubricant of claim 7 wherein the alkanolamine is triethanolamine.
References Cited (Backward Citations)
US2490744A
Cited
US2959547A
Cited
US2939842A
Cited
US3269946A
Cited
US3256187A
Cited
US3378494A
Cited
GB1165086A
Cited
US3629112A
Cited
US3645897A
Cited
US3983044A
Cited
US4053426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-14 | 1985-03-16 | 1985-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-14 | 1989-03-16 | 1989-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-14 | 1993-03-16 | 1993-09-15 | $7700.00 | Window Closed / Lapsed |