US4054422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mannich bases containing tertiary amines and fuel compositions containing said mannich bases
Assignee: EIDP Inc
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Filing: 1975-09-12
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Granted: 1977-10-18
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Expires: 1995-09-12
Abstract
Abstract Mannich condensation products useful in gasoline as carburetor detergents; the condensation compositions having the formula <IMAGE> wherein Z is an alkyl - and hydroxy - substituted benzyl group wherein the alkyl has 20 to 1000 carbon atoms, n is 2 or 3; R is an alkyl of 1 to 20 carbon atoms; a, x and c are each 0 or 1; and b is 0 to 5; with the provisos that when a = 0, then b is at least 1 and c = 1; when a = 1 and x = 0, then b and c = 0; and when a = 1 and x = 1, then c = 1.
Inventors
- 👤 Bruce Hollis Garth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:24
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/223; C10L1/232; C10L1/234; C10L1/238; C10L1/2383; C10L1/2387
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
54 words
A composition of the formula ZNHC.sub.n H.sub.2n (N(R)C.sub.n H.sub.2n) .sub.b (NH).sub.c Z wherein Z is an alkyl- and hydroxy-substituted benzyl group wherein the alkyl has 20 to 1000 carbon atoms; n is 2 or 3; R is an alkyl of 1 to 20 carbon atoms; b is 1 to 5 and c is 1.
Claim 2
Dependent Claim
54 words
A composition of the formula ZNHC.sub.n H.sub.2n (N(R)C.sub.n H.sub.2n) .sub.b (NH).sub.c Z wherein Z is an alkyl- and hydroxy-substituted benzyl group wherein the alkyl has 20 to 1000 carbon atoms; n is 2 or 3; R is an alkyl of 1 to 20 carbon atoms; b is 1 to 5 and c is 1.
Claim 3
Dependent Claim
18 words
A composition according to claim 1 wherein the alkyl group in Z has 50 to 200 carbon atoms.
Claim 4
Dependent Claim
19 words
A composition according to claim 2 wherein n = 2, b = 1 to 5, and c = 1.
Claim 5
Dependent Claim
19 words
A composition according to claim 2 wherein n = 3, b = 1 to 5, and c = 1.
Claim 6
Dependent Claim
18 words
A composition according to claim 2 wherein the alkyl group in Z has 50 to 75 carbon atoms.
Claim 7
Dependent Claim
27 words
A composition according to claim 5: Znhc 3 h 6 n(r)c 3 h 6 nhz wherein R is an alkyl group of 1 to 4 carbon atoms.
Claim 8
Dependent Claim
17 words
A composition according to claim 6: Znhc 3 h 6 n(ch 3 )c 3 h 6 nhz.
Claim 9
Dependent Claim
30 words
a composition comprising a major proportion of a normally liquid hydrocarbon boiling in the gasoline range and from 0.005 to 0.06 weight percent of the composition according to claim 1.
Claim 10
Dependent Claim
30 words
A composition comprising a major proportion of a normally liquid hydrocarbon boiling in the gasoline range and from 0.005 to 0.06 weight percent of the composition according to claim 7.
Claim 11
Dependent Claim
33 words
A concentrated solution in a hydrocarbon solvent boiling in the gasoline boiling range of 32° C to 205° C, of from 10 to 90 weight percent of the composition according to claim 1.
References Cited (Backward Citations)
CA647911A
Cited
US3368972A
Cited
US3448047A
Cited
US3591598A
Cited
US3634515A
Cited
US3649229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-17 | 1981-04-18 | 1981-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-17 | 1985-04-18 | 1985-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-17 | 1989-04-18 | 1989-10-18 | $7700.00 | Window Closed / Lapsed |