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US3625859A
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Corrosion inhibiting composition
Assignee: San-Abbott Ltd
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Filing: 1969-07-31
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Granted: 1971-12-07
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Expires: 1989-07-31
Abstract
Abstract WHEREIN R and R'' are inert radicals and together may form a methylene chain and n is 2, 3, 4 or 5, and compositions containing such salts and specific extenders have been found to be effective corrosion inhibitors for aqueous and oil systems. Fatty acid addition salts of amines of the formula
Inventors
- 👤 Sei Hashimoto
- 👤 Kunihiko Hirose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:06
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/149; C10M2201/00; C10M2201/02; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/28; C10M2207/287; C10M2207/289; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/044; C10M2215/08; C10M2215/082; C10M2215/22; C10M2215/221; C10M2215/223; C10M2215/224; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
21 words
The composition of claim 1 wherein R and R'' in said amine together form a methylene chain of 2-11 carbon atoms.
Claim 2
Dependent Claim
52 words
The composition of claim 1 wherein R and R'' of said amine of formula (A) together form a methylene chain of three to five carbon atoms, n is 3 or 4, and said aliphatic carboxylic acid is a monocarboxylic acid of 11-18 carbon atoms or a tricarboxylic acid of 35-44 carbon atoms.
Claim 3
Dependent Claim
39 words
The composition of claim 1 containing between 30 and 70 percent by weight of a higher aliphatic acid addition salt of an amine of formula (A) and between 70 and 30 percent by weight of any of said extenders.
Claim 4
Dependent Claim
48 words
The composition of claim 1 wherein said liquid or solid extender (a) is an amine of formula N2HR'''', HNR''''2 or NR''''3 wherein each R'''' is selected from the group consisting of an alkyl chain of 1-18 carbon atoms, a hydroxyalkyl of two to three carbon atoms and cyclohexyl.
Claim 5
Dependent Claim
52 words
The composition of claim 1 wherein R and R'' of said amine of formula (A) together form a methylene chain of three to five carbon atoms, n is 3 or 4, and said aliphatic carboxylic acid is a monocarboxylic acid of 11-18 carbon atoms or a tricarboxylic acid of 35-44 carbon atoms.
Claim 6
Dependent Claim
13 words
The composition of claim 1 wherein said polyhydric alcohol is a sorbitan ester.
Claim 7
Dependent Claim
15 words
The composition of claim 1 wherein said aromatic carboxylic acid is a monocyclic monocarboxylic acid.
References Cited (Backward Citations)
US2468163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |