Patent US4003718A successfully refreshed from Google Patents.
US4003718A
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US
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Substituted tetrahydropyrimidines
Assignee: Universal Oil Products Co
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Filing: 1975-03-12
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Granted: 1977-01-18
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Expires: 1995-03-12
Abstract
Abstract Substituted tetrahydropyrimidines, both mono- and disubstituted, as exemplified by 2(2-N,N-dioctylamino-2-propyl)-3-tetradecyl-1,4,5,6-tetrahydropyrimidine, are useful as additives in petroleum distillates such as gasoline.
Inventors
- 👤 Marion J. Gattuso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:15
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/06; C07C; C07C251/00; C07D239/08; C07D239/12; C07D239/14; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/232; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
55 words
A substituted tetrahydropyrimidine having the generic formula: ##STR7##in which R and R' are independently selected from the group consisting of alkyl of from 1 to 20 carbon atoms, cycloalkyl of from 3 to 8 carbon atoms in the ring, phenyl and benzyl, and R" is hydrogen or alkyl of from 1 to 20 carbon atoms.
Claim 2
Dependent Claim
55 words
A substituted tetrahydropyrimidine having the generic formula: ##STR7##in which R and R' are independently selected from the group consisting of alkyl of from 1 to 20 carbon atoms, cycloalkyl of from 3 to 8 carbon atoms in the ring, phenyl and benzyl, and R" is hydrogen or alkyl of from 1 to 20 carbon atoms.
Claim 3
Dependent Claim
8 words
The substituted tetrahydropyrimidine of claim 1 being 2(2-N,N-dioctylamino-2-propyl)-3-tetradecyl-1,4,5,6-tetrahydropyrimidine.
Claim 4
Dependent Claim
8 words
The substituted tetrahydropyrimidine of claim 1 being 2(2-N,N-dicyclohexylamino-2-propyl)-3-tetradecyl-1,4,5,6-tetrahydropyrimidine.
Claim 5
Dependent Claim
8 words
The substituted tetrahydropyrimidine of claim 1 being 2(2-morpholino-2-propyl)-3-tetradecyl-1,4,5,6-tetrahydropyrimidine.
Claim 6
Dependent Claim
8 words
The substituted tetrahydropyrimidine of claim 1 being 2(2-N,N-diphenylamino-2-propyl)-3-octyl-1,4,5,6-tetrahydropyrimidine.
Claim 7
Dependent Claim
8 words
The substituted tetrahydropyrimidine of claim 1 being 2(2-N,N-dibutylamino-2-propyl)-1,4,5,6-tetrahydropyrimidine.
Claim 8
Dependent Claim
30 words
Petroleum distillate of the class of gasoline and fuel oil containing, as an additive therefor, from 10 to 50 ppm. of a substituted tetrahydropyrimidine as set forth in claim 1.
Claim 9
Dependent Claim
11 words
The petroleum distillate as set forth in claim 7 being gasoline.
Claim 10
Dependent Claim
13 words
The petroleum distillate of claim 7 in which the additive therefor is 2(2-N,N-dioctylamino-2-propyl)-3-tetradecyl-1,4,5,6-tetrahydropyrimidine.
Claim 11
Dependent Claim
13 words
The petroleum distillate of claim 7 in which the additive therefor is 2(2-N,N-dicyclohexylamino-2-propyl)-3-tetradecyl-1,4,5,6-tetrahydropyrimidine.
Claim 12
Dependent Claim
13 words
The petroleum distillate of claim 7 in which the additive therefor is 2(2-morpholino-2-propyl)-3-tetradecyl-1,4,5,6-tetrahydropyrimidine.
Claim 13
Dependent Claim
13 words
The petroleum distillate of claim 7 in which the additive therefor is 2(2-N,N-diphenylamino-2-propyl)-3-octyl-1,4,5,6-tetrahydropyrimidine.
Claim 14
Dependent Claim
13 words
The petroleum distillate of claim 7 in which the additive therefor is 2(2-N,N-dibutylamino-2-propyl)-1,4,5,6-tetrahydropyrimidine.
References Cited (Backward Citations)
US3787416A
Cited
US3844957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-18 | 1980-07-19 | 1981-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-18 | 1984-07-19 | 1985-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-18 | 1988-07-19 | 1989-01-18 | $7700.00 | Window Closed / Lapsed |