US3719598A
Expired / Lapsed
US
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Aqueous cutting fluid which protects ferrous metals against corrosion
Assignee: Master Chemical Corp
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Filing: 1970-10-23
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Granted: 1973-03-06
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Expires: 1990-10-23
Abstract
Abstract The aqueous cutting fluid consists essentially of a reaction product of boric acid with one to two molecular equivalents of an aliphatic amine having from one to three aliphatic radicals each of which contains from one to four carbon atoms, and having at least one hydroxy group attached to a carbon atom. Improved protection of ferrous metals against corrosion is provided by incorporating in the cutting fluid a petroleum sulfonate together with a non-ionic wetting agent.
Inventors
- 👤 J King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:32
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2201/08; C10M2201/082; C10M2201/083; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/24; C10M2215/26; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2221/00; C10M2227/00; C10M2227/06; C10M2227/061; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2040/00; C10N2040/20; C10N2040/22; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
99 words
In an aqueous cutting fluid which provides superior protection of ferrous metals against corrosion, consisting essentially of a reaction product of boric acid with from one to two molecular equivalents of a hydroxy-substituted alkyl amine having from one to three aliphatic radicals each of which contains from one to four carbon atoms, and having at least one hydroxy group attached to a carbon atom, the improvement comprising a petroleum sulfonate in an amount from 3 to 15 percent of the solids content, and a non-ionic wetting agent in an amount from 0.5 to 3 percent of the solids content.
Claim 2
Dependent Claim
99 words
In an aqueous cutting fluid which provides superior protection of ferrous metals against corrosion, consisting essentially of a reaction product of boric acid with from one to two molecular equivalents of a hydroxy-substituted alkyl amine having from one to three aliphatic radicals each of which contains from one to four carbon atoms, and having at least one hydroxy group attached to a carbon atom, the improvement comprising a petroleum sulfonate in an amount from 3 to 15 percent of the solids content, and a non-ionic wetting agent in an amount from 0.5 to 3 percent of the solids content.
Claim 3
Dependent Claim
13 words
An aqueous cutting fluid according to claim 1 wherein the amine is triethanolamine.
Claim 4
Dependent Claim
25 words
An aqueous cutting fluid according to claim 1 comprising an alkali metal nitrite in an amount from 1 to 10 percent of the solids content.
Claim 5
Dependent Claim
46 words
An aqueous cutting fluid according to claim 1 comprising a salt of triethanolamine with a fatty acid having from 18 to 22 carbon atoms in which any substituent consists of a single hydroxy group, in an amount from 3 to 30 percent of the solids content.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |