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Patent US4435338A successfully refreshed from Google Patents.
US4435338A
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Dithiophosphates
Assignee: BASF Corp
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Filing: 1981-09-21
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Granted: 1984-03-06
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Expires: 2001-09-21
Abstract
Abstract The compounds according to the invention correspond to the formula I ##STR1## in which R is a hydrocarbon radical, A is one of the groups --O.CO--, --O-- or ##STR2## (in which m is 0-30) and Q, depending on the definition of A, is a hydrocarbon radical, a P-containing radical, an N-heterocyclic group or a radical containing N-heterocyclic groups. The compounds according to the invention also include those which are formed by an addition reaction of an O,O-dialkyl dithiophosphate with an epoxidised soybean oil. The compounds according to the invention are very useful as lubricant additives.
Inventors
- 👤 Klaus-Peter Michaelis
- 👤 Rainer Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:46
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/02; G02B5/0205; G02B5/0252; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/1651; C07F9/547; C07F9/645; C07F9/6503; C07F9/6506; C07F9/6558; C07F9/65583; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M137/105; C10M2201/00; C10M2201/06; C10M2201/061; C10M2201/16; C10M2201/18; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/025; C10M2207/026; C10M2207/027; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/16; C10M2207/22; C10M2207/28; C10M2207/287; C10M2207/289; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2211/00; C10M2211/04; C10M2211/042; C10M2211/06; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/10; C10M2215/14; C10M2215/18; C10M2215/182; C10M2215/20; C10M2215/202; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/227; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/085; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/043; C10M2223/045; C10M2223/047; C10N; C10N2010/00; C10N2010/04; C10N2010/08; C10N2010/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
77 words
A compound of the formula ##STR34## in which n is 2, 3 or 4 and is the valency of Q, R is a hydrocarbon radical having 1 to 22 carbon atoms, or said radical having an --O-- or --S-- group in the chain, or said radical substituted by hydroxy or by halogen, A is the group --OCO-- and Q is a group ##STR35## or A is the group --O-- and Q is one of the radicals ##STR36##
Claim 2
Dependent Claim
77 words
A compound of the formula ##STR34## in which n is 2, 3 or 4 and is the valency of Q, R is a hydrocarbon radical having 1 to 22 carbon atoms, or said radical having an --O-- or --S-- group in the chain, or said radical substituted by hydroxy or by halogen, A is the group --OCO-- and Q is a group ##STR35## or A is the group --O-- and Q is one of the radicals ##STR36##
Claim 3
Dependent Claim
19 words
A compound according to claim 1, of the formula I, in which R is C 3 -C 8 -alkyl.
Claim 4
Dependent Claim
12 words
A compound according to claim 2 wherein R is isopropyl or isooctyl.
Claim 5
Dependent Claim
15 words
A compound according to claim 1, of the formula I, which has the structure ##STR37##
References Cited (Backward Citations)
US2921086A
Cited
US3197405A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1987-03-06 | 1987-09-05 | 1988-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-06 | 1991-09-05 | 1992-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-06 | 1995-09-05 | 1996-03-06 | $7700.00 | Window Closed / Lapsed |