Patent US1715750A successfully refreshed from Google Patents.
US4038043A
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Gasoline additive compositions comprising a combination of monoamine and polyamine mannich bases
Assignee: EIDP Inc
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Filing: 1975-09-12
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Granted: 1977-07-26
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Expires: 1995-09-12
Abstract
Abstract A combination of monoamine and polyamine Mannich condensation products, useful in gasoline as carburetor detergents and useful also to control intake valve deposits and quick-heat intake manifold deposits; the monoamide being Z n NR 3 -n , and the polyamine being: ZNH(C x H 2x N(R')) y C x H 2x NHZ wherein Z is an alkyl- and hydroxy-substituted benzyl group, the alkyl having 50 to 1000 carbon atoms; R is hydrogen or alkyl of 1 to 18 carbon atoms; n is 1 or 2; R' is hydrogen or Z with the proviso that at least one R' is hydrogen; x is 2 or 3; and y is 1 to 5.
Inventors
- 👤 Bruce Hollis Garth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:43
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/234; C10L1/238; C10L1/2383
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
112 words
A gasoline additive composition comprising a combination of i. from 20 to 80 weight percent of a monoamine of the formula, Z n NR 3 -n , and ii. from 20 to 80 weight percent of a polyamine of the formula ZNH(C x H 2x N(R')) y C x H 2x NHZ wherein Z is an alkyl- and hydroxy-substituted benzyl group, the alkyl having 50 to 1000 carbon atoms; R is hydrogen or alkyl of 1 to 18 carbon atoms; and n is 1 or 2; R' is hydrogen or Z with the proviso that at least one R' is hydrogen; x is 2 or 3; and y is 1 to 5.
Claim 2
Dependent Claim
112 words
A gasoline additive composition comprising a combination of i. from 20 to 80 weight percent of a monoamine of the formula, Z n NR 3 -n , and ii. from 20 to 80 weight percent of a polyamine of the formula ZNH(C x H 2x N(R')) y C x H 2x NHZ wherein Z is an alkyl- and hydroxy-substituted benzyl group, the alkyl having 50 to 1000 carbon atoms; R is hydrogen or alkyl of 1 to 18 carbon atoms; and n is 1 or 2; R' is hydrogen or Z with the proviso that at least one R' is hydrogen; x is 2 or 3; and y is 1 to 5.
Claim 3
Dependent Claim
14 words
A composition according to claim 1 wherein R is C 1 to 4 alkyl.
Claim 4
Dependent Claim
10 words
A composition according to claim 2 wherein R is methyl.
Claim 5
Dependent Claim
10 words
A composition according to claim 2 wherein R is hydrogen.
Claim 6
Dependent Claim
17 words
A composition according to claim 1 wherein the alkyl in Z has 50 to 200 carbon atoms.
Claim 7
Dependent Claim
33 words
A composition according to claim 5 wherein the alkyl in Z has 50 to 75 carbon atoms and at least 60% of the alkyl substituent in Z is para to the hydroxyl substituent.
Claim 8
Dependent Claim
22 words
A composition according to claim 1 wherein at least 60% of the alkyl substituent in Z is para to the hydroxyl substituent.
Claim 9
Dependent Claim
16 words
A composition according to claim 7 wherein X is 2 and y is 1 to 3.
Claim 10
Dependent Claim
22 words
A composition according to claim 1 wherein (i) constitutes from 40 to 60 weight percent of the combination of (i) and (ii).
Claim 11
Dependent Claim
10 words
A composition according to claim 1 wherein x is 2.
Claim 12
Dependent Claim
12 words
A composition according to claim 10 wherein y is 1 to 3.
Claim 13
Dependent Claim
11 words
A composition according to claim 1 wherein each R' is hydrogen.
Claim 14
Dependent Claim
14 words
A composition according to claim 1 wherein (i) is Z 2 NCH 3 .
Claim 15
Dependent Claim
17 words
A composition according to claim 1 wherein x is 2, R' is H, and y is 2.
Claim 16
Dependent Claim
17 words
A composition according to claim 1 wherein x is 2, R' is H, and y is 3.
Claim 17
Dependent Claim
14 words
A composition according to claim 14 wherein (i) is Z 2 NCH 3 .
Claim 18
Dependent Claim
14 words
A composition according to claim 15 wherein (i) is Z 2 NCH 3 .
Claim 19
Dependent Claim
16 words
A gasoline composition containing from 0.004 to 0.1 weight percent of the composition of claim 1.
Claim 20
Dependent Claim
19 words
A solution of the composition of claim 1 in a hydrocarbon solvent that boils in the gasoline boiling range.
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) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |