Patent US4026890A successfully refreshed from Google Patents.
US4026890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triazine-urea grease thickeners
Assignee: Shell USA Inc
•
Filing: 1975-11-26
•
Granted: 1977-05-31
•
Expires: 1995-11-26
Abstract
Abstract Triazine-urea compounds having the structural formula ##STR1## WHEREIN R is an aliphatic hydrocarbyl radical of 16 to 22 carbon atoms, m is 0 or 1 and n is 0 or 1, are excellent thickening agents for greases employed in high temperature applications.
Inventors
- 👤 Thomas F. Wulfers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:38
CPC Classifications
C; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/40; C07D251/54; C07D251/70; C10; C10M; C10M115/00; C10M115/08; C10M2201/00; C10M2201/08; C10M2201/082; C10M2201/083; C10M2205/00; C10M2205/02; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/289; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/10; C10M2215/102; C10M2215/22; C10M2215/221; C10M2215/222; C10M2215/223; C10M2215/224; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10N; C10N2010/00; C10N2010/02; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
29 words
A triazine-urea compound defined by the formula: ##STR7## wherein R is an aliphatic hydrocarbyl radical of 16 to 22 carbon atoms and m and n are integers of 0-1.
Claim 2
Dependent Claim
29 words
A triazine-urea compound defined by the formula: ##STR7## wherein R is an aliphatic hydrocarbyl radical of 16 to 22 carbon atoms and m and n are integers of 0-1.
Claim 3
Dependent Claim
42 words
A compound according to claim 1, wherein R is selected from the class consisting of straight-chain and branched-chain saturated aliphatic hydrocarbyl radicals of 16 to 22 carbon atoms and straight-chain and branched-chain unsaturated aliphatic hydrocarbyl radicals of 16 to 22 carbon atoms.
Claim 4
Dependent Claim
18 words
A compound according to claim 2, wherein R is a straight-chain alkyl of 18 to 21 carbon atoms.
Claim 5
Dependent Claim
14 words
A compound according to claim 3, wherein m is 1 and n is 0.
Claim 6
Dependent Claim
27 words
The compound of claim 2 wherein R is selected from the class consisting of straight-chain and branched-chain saturated aliphatic hydrocarbyl radicals of 16 to 22 carbon atoms.
Claim 7
Dependent Claim
13 words
The compound of claim 5 wherein R is C 18 H 37 --.
Claim 8
Dependent Claim
13 words
The compound of claim 5 wherein R is C 19 H 39 --.
Claim 9
Dependent Claim
13 words
The compound of claim 5 wherein R is C 20 H 41 --.
Claim 10
Dependent Claim
13 words
The compound of claim 5 wherein R is C 21 H 43 --.
Claim 11
Dependent Claim
1 words
4,4'-Bis[(6-octadecylureido,-4-amino-S-triazinyl)ureido]-3,3'-dimethylbiphenyl.
Claim 12
Dependent Claim
1 words
4,4'-Bis[(6-octadecylureido,-4-amino-S-triazinyl)ureido]-3,3'-dimethylbiphenyl.
Claim 13
Dependent Claim
3 words
Bis[p-(6-octadecylureido-4-amino-S-triazinyl)ureido phenyl] methane.
Claim 14
Dependent Claim
3 words
Bis[p-(6-octadecylureido-4-amino-S-triazinyl)ureido phenyl] methane.
Claim 15
Dependent Claim
1 words
4,4'-Bis[(6-eicosylureido-4-amino-S-triazinyl)ureido]-3,3'-dimethylbiphenyl.
Claim 16
Dependent Claim
1 words
4,4'-Bis[(6-eicosylureido-4-amino-S-triazinyl)ureido]-3,3'-dimethylbiphenyl.
Claim 17
Dependent Claim
1 words
4,4'-Bis[(6-nonadecylureido-4-amino-S-triazinyl)ureido]-3,3'-dimethylbiphenyl.
Claim 18
Dependent Claim
1 words
4,4'-Bis[(6-nonadecylureido-4-amino-S-triazinyl)ureido]-3,3'-dimethylbiphenyl.
Claim 19
Dependent Claim
1 words
4,4'-Bis[(6-heneicosylureido-4-amino-S-triazinyl)ureido]-3,3'-dimethylbiphenyl.
Claim 20
Dependent Claim
1 words
4,4'-Bis[(6-heneicosylureido-4-amino-S-triazinyl)ureido]-3,3'-dimethylbiphenyl.
References Cited (Backward Citations)
US3309345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-30 | 1980-11-29 | 1981-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-30 | 1984-11-29 | 1985-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-30 | 1988-11-29 | 1989-05-31 | $7700.00 | Window Closed / Lapsed |