Patent US4195977A successfully refreshed from Google Patents.
US4195977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ether diamine salts of N-acylsarcosines and their use as corrosion inhibitors
Assignee: Akzona Inc
•
Filing: 1978-09-22
•
Granted: 1980-04-01
•
Expires: 1998-09-22
Abstract
Abstract Compositions containing ether diamine and salts thereof with N-acylsarcosines are disclosed. The ether diamine salts of N-acylsarcosines have the formula: [R1O(CH2)3NH(CH2)3NH2].[HO2CCH2(CH3)NOCR2] wherein R1 is an aliphatic group containing from about 6 to about 18 carbon atoms and R2 is an aliphatic group containing from about 8 to about 18 carbon atoms. Also disclosed are fuel oil compositions containing said ether diamine and salts thereof, and a method for inhibiting corrosion utilizing said ether diamine salts.
Inventors
- 👤 Thomas C. Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:05
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/224
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
50 words
An ether diamine salt of an N-acylsarcosine, having the formula [R.sub.1 O(CH.sub.2).sub.3 NH(CH.sub.2).sub.3 NH.sub.2 ][HO.sub.2 CCH.sub.2 (CH.sub.3)NOCR.sub.2 ] wherein R 1 is an aliphatic group containing from about 6 to about 18 carbon atoms and R 2 is an aliphatic group containing from about 8 to about 18 carbon atoms.
Claim 2
Dependent Claim
50 words
An ether diamine salt of an N-acylsarcosine, having the formula [R.sub.1 O(CH.sub.2).sub.3 NH(CH.sub.2).sub.3 NH.sub.2 ][HO.sub.2 CCH.sub.2 (CH.sub.3)NOCR.sub.2 ] wherein R 1 is an aliphatic group containing from about 6 to about 18 carbon atoms and R 2 is an aliphatic group containing from about 8 to about 18 carbon atoms.
Claim 3
Dependent Claim
17 words
The salt of claim 1 wherein R 1 contains from about 8 to about 15 carbon atoms.
Claim 4
Dependent Claim
16 words
The salt of claim 1 or 2 wherein R 1 is an alkyl or alkenyl group.
Claim 5
Dependent Claim
24 words
The salt of claim 1 wherein R 1 is an aliphatic group having a backbone containing from about 6 to about 15 carbon atoms.
Claim 6
Dependent Claim
19 words
The salt of claim 1 or 2 wherein R 2 contains from about 10 to about 16 carbon atoms.
Claim 7
Dependent Claim
14 words
The salt of claim 5 wherein R 2 is an alkyl or alkenyl group.
Claim 8
Dependent Claim
110 words
A composition comprising a mixture of one or more ether diamines and salts thereof with at least one N-acylsarcosine wherein the ether diamine is selected from the group consisting of ether diamines having the formula R.sub.1 O(CH.sub.2).sub.3 NH(CH.sub.2).sub.3 NH.sub.2 wherein R 1 is an aliphatic group containing from about 6 to about 18 carbon atoms and the N-acylsarcosine is selected from the group consisting of N-acylsarcosines having the formula HOOCCH.sub.2 (CH.sub.3)NOCR.sub.2 wherein R 2 is an aliphatic group containing from about 8 to about 18 carbon atoms and wherein from about 10 percent to about 100 percent of the ether diamine is present in the form of the sarcosinate salt.
Claim 9
Dependent Claim
110 words
A composition comprising a mixture of one or more ether diamines and salts thereof with at least one N-acylsarcosine wherein the ether diamine is selected from the group consisting of ether diamines having the formula R.sub.1 O(CH.sub.2).sub.3 NH(CH.sub.2).sub.3 NH.sub.2 wherein R 1 is an aliphatic group containing from about 6 to about 18 carbon atoms and the N-acylsarcosine is selected from the group consisting of N-acylsarcosines having the formula HOOCCH.sub.2 (CH.sub.3)NOCR.sub.2 wherein R 2 is an aliphatic group containing from about 8 to about 18 carbon atoms and wherein from about 10 percent to about 100 percent of the ether diamine is present in the form of the sarcosinate salt.
Claim 10
Dependent Claim
17 words
The composition of claim 7 where R 1 contains from about 8 to about 15 carbon atoms.
Claim 11
Dependent Claim
16 words
The composition of claim 7 or 8 wherein R 1 is an alkyl or alkenyl group.
Claim 12
Dependent Claim
24 words
The composition of claim 7 wherein R 1 is an aliphatic group having a backbone containing from about 6 to about 15 carbon atoms.
Claim 13
Dependent Claim
17 words
The composition of claim 7 wherein R 2 contains from about 10 to about 16 carbon atoms.
Claim 14
Dependent Claim
16 words
The composition of claim 7 or 8 wherein R 2 is an alkyl or alkenyl group.
Claim 15
Dependent Claim
126 words
A corrosion inhibited normally liquid hydrocarbon comprising said hydrocarbon and an effective amount of a corrosion inhibiting composition comprising a mixture of one or more ether diamines and salts thereof with at least one N-acylsarcosine wherein the ether diamine is selected from the group consisting of ether diamines of the formula R.sub.1 O(CH.sub.2).sub.3 NH(CH.sub.2).sub.3 NH.sub.2 wherein R 1 is an aliphatic group containing from about 6 to about 18 carbon atoms and the N-acylsarcosine is selected from the group consisting of N-acylsarcosines having the formula HOOCCH.sub.2 (CH.sub.3)NOCR.sub.2 wherein R 2 is an aliphatic group containing from about 8 to about 18 carbon atoms, and wherein from about 10 percent to about 100 percent of the ether diamine is present in the form of the sarcosinate salt.
Claim 16
Dependent Claim
126 words
A corrosion inhibited normally liquid hydrocarbon comprising said hydrocarbon and an effective amount of a corrosion inhibiting composition comprising a mixture of one or more ether diamines and salts thereof with at least one N-acylsarcosine wherein the ether diamine is selected from the group consisting of ether diamines of the formula R.sub.1 O(CH.sub.2).sub.3 NH(CH.sub.2).sub.3 NH.sub.2 wherein R 1 is an aliphatic group containing from about 6 to about 18 carbon atoms and the N-acylsarcosine is selected from the group consisting of N-acylsarcosines having the formula HOOCCH.sub.2 (CH.sub.3)NOCR.sub.2 wherein R 2 is an aliphatic group containing from about 8 to about 18 carbon atoms, and wherein from about 10 percent to about 100 percent of the ether diamine is present in the form of the sarcosinate salt.
Claim 17
Dependent Claim
19 words
The corrosion inhibited hydrocarbon of claim 13 wherein R 1 contains from about 8 to about 15 carbon atoms.
Claim 18
Dependent Claim
18 words
The corrosion inhibited hydrocarbon of claim 13 or 14 wherein R 1 is an alkyl or alkenyl group.
Claim 19
Dependent Claim
26 words
The corrosion inhibited hydrocarbon of claim 13 wherein R 1 is an aliphatic group having a backbone containing from about 6 to about 15 carbon atoms.
Claim 20
Dependent Claim
21 words
The corrosion inhibited hydrocarbon of claim 13 or 14 wherein R 2 contains from about 10 to about 16 carbon atoms.
Claim 21
Dependent Claim
18 words
The corrosion inhibited hydrocarbon of claim 13 or 14 wherein R 2 is an alkyl or alkenyl group.
Claim 22
Dependent Claim
13 words
The corrosion inhibited hydrocarbon of claim 13 wherein the hydrocarbon is fuel oil.
Claim 23
Dependent Claim
24 words
The corrosion inhibited hydrocarbon of claim 17 wherein from about one to about 10 parts per million of the corrosion inhibiting composition is utilized.
Claim 24
Independent Claim
138 words
A method for inhibiting corrosion of metal used for containment or transportation of a normally liquid hydrocarbon comprising adding to the hydrocarbon an effective amount of a corrosion inhibiting composition comprising a mixture of one or more ether diamines and salts with at least one N-acylsarcosine wherein the ether diamine is selected from the group consisting of ether diamines of the formula R.sub.1 O(CH.sub.2).sub.3 NH(CH.sub.2).sub.3 NH.sub.2 wherein R 1 is an aliphatic group containing from about 6 to about 18 carbon atoms, and the N-acylsarcosine is selected from the group consisting of N-acylsarcosines having the formula HOOCCH.sub.2 CH.sub.3 NOCR.sub.2 wherein R 2 is an aliphatic group containing from about 8 to about 18 carbon atoms, and wherein from about 10 percent to about 100 percent of the ether diamine is present in the form of the sarcosinate salt.
Claim 25
Independent Claim
138 words
A method for inhibiting corrosion of metal used for containment or transportation of a normally liquid hydrocarbon comprising adding to the hydrocarbon an effective amount of a corrosion inhibiting composition comprising a mixture of one or more ether diamines and salts with at least one N-acylsarcosine wherein the ether diamine is selected from the group consisting of ether diamines of the formula R.sub.1 O(CH.sub.2).sub.3 NH(CH.sub.2).sub.3 NH.sub.2 wherein R 1 is an aliphatic group containing from about 6 to about 18 carbon atoms, and the N-acylsarcosine is selected from the group consisting of N-acylsarcosines having the formula HOOCCH.sub.2 CH.sub.3 NOCR.sub.2 wherein R 2 is an aliphatic group containing from about 8 to about 18 carbon atoms, and wherein from about 10 percent to about 100 percent of the ether diamine is present in the form of the sarcosinate salt.
Claim 26
Dependent Claim
17 words
The method of claim 21 wherein R 1 contains from about 8 to about 15 carbon atoms.
Claim 27
Dependent Claim
16 words
The method of claim 21 or 22 wherein R 1 is an alkyl or alkenyl group.
Claim 28
Dependent Claim
24 words
The method of claim 21 wherein R 1 is an aliphatic group having a backbone containing from about 6 to about 15 carbon atoms.
Claim 29
Dependent Claim
19 words
The method of claim 21 or 22 wherein R 2 contains from about 10 to about 16 carbon atoms.
Claim 30
Dependent Claim
16 words
The method of claim 21 or 22 wherein R 2 is an alkyl or alkenyl group.
Claim 31
Dependent Claim
11 words
The method of claim 21 wherein the hydrocarbon is fuel oil.
Claim 32
Dependent Claim
22 words
The method of claim 26 wherein from about one to about 10 parts per million of the corrosion inhibiting composition is utilized.
References Cited (Backward Citations)
DE1545248A1
Cited
US2935389A
Cited
US3109719A
Cited
US3238277A
Cited
US3404165A
Cited
US3448154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-01 | 1983-10-01 | 1984-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-01 | 1987-10-01 | 1988-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-01 | 1991-10-01 | 1992-04-01 | $7700.00 | Window Closed / Lapsed |