Patent US4072626A successfully refreshed from Google Patents.
US4072626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amine salt composition useful in inhibiting metal corrosion
Assignee: A F IND Inc
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Filing: 1976-04-12
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Granted: 1978-02-07
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Expires: 1996-04-12
Abstract
Abstract An amine salt is comprised of the reaction of pelargonic acid and dicyclohexylamine. The amine salt, dicyclohexylammonium pelargonate, is useful for inhibiting metal corrosion. A polyphosphate may be used in conjunction with the amine salt to obtain a synergistic corrosion inhibiting effect when a saline environment is encountered by the metal to be protected.
Inventors
- 👤 Donald C. Finney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:38
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/141; C23F11/143; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31703
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
27 words
A composition comprising: a. dicyclohexylammonium pelargonate; and, b. a polyphosphate; said (a) and (b) being present in sufficient amounts to inhibit metal corrosion in a saline environment.
Claim 2
Dependent Claim
27 words
A composition comprising: a. dicyclohexylammonium pelargonate; and, b. a polyphosphate; said (a) and (b) being present in sufficient amounts to inhibit metal corrosion in a saline environment.
Claim 3
Dependent Claim
25 words
The composition of claim 1 wherein said polyphosphate is present at a level of 10 to 500 parts per one million parts of dicyclohexylammonium pelargonate.
Claim 4
Dependent Claim
14 words
The composition of claim 1 wherein (a) and (b) are in an aqueous solution.
Claim 5
Independent Claim
35 words
A method of inhibiting corrosion comprising contracting a corrosion susceptible surface with a corrosion inhibiting solution consisting essentially of dicyclohexylammonium pelargonate and an effective amount of a polyphosphate to inhibit corrosion in a saline environment.
Claim 6
Independent Claim
35 words
A method of inhibiting corrosion comprising contracting a corrosion susceptible surface with a corrosion inhibiting solution consisting essentially of dicyclohexylammonium pelargonate and an effective amount of a polyphosphate to inhibit corrosion in a saline environment.
Claim 7
Dependent Claim
29 words
The method of claim 4 wherein said polyphosphate is present at a level of 10 to 500 parts by weight per one million parts by weight of dicyclohexylammonium pelargonate.
Claim 8
Dependent Claim
25 words
The method of claim 5 wherein said polyphosphate is present at a level of 100 to 300 parts per one million parts of dicyclohexylammonium pelargonate.
Claim 9
Dependent Claim
45 words
In an impact absorbing composition suitable for coating metal articles to protect said articles from impact damage, said composition containing cellulose acetate butyrate as the impact absorbing constituent, the improvement comprising: an effective amount of dicyclohexylammonium pelargonate to inhibit the corrosion of said metal article.
Claim 10
Dependent Claim
45 words
In an impact absorbing composition suitable for coating metal articles to protect said articles from impact damage, said composition containing cellulose acetate butyrate as the impact absorbing constituent, the improvement comprising: an effective amount of dicyclohexylammonium pelargonate to inhibit the corrosion of said metal article.
Claim 11
Dependent Claim
27 words
The composition of claim 7 having therein: 90 to 99.5 parts by weight of cellulose acetate butyrate; and, 0.5 to 10 parts by weight of dicyclohexylammonium pelargonate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-06 | 1981-08-08 | 1982-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-06 | 1985-08-08 | 1986-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-06 | 1989-08-08 | 1990-02-07 | $7700.00 | Window Closed / Lapsed |