Patent US3929653A successfully refreshed from Google Patents.
US3929653A
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Lubricant additives
Assignee: Edwin Cooper and Co Ltd
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Filing: 1974-06-18
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Granted: 1975-12-30
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Expires: 1994-06-18
Abstract
Abstract A compound, suitable for use as an oil-soluble, ashless, lubricant additive, has the general formula: WHEREIN: I. R is the residue of a monocyclic, non-conjugated olefin containing from 8 to 12 carbon atoms and at least two ethylenically unsaturated double bonds in the ring or is the residue of the product formed by reacting at least one, but not all, of the ethylenically unsaturated double bonds in such a monocyclic, non-conjugated olefin with sulphur, phosphorus pentasulphide, a mercaptan, phenol, thiophenol, thiocyanate anion or carboxylic acid; II. EACH R1 is the same or different and is an organic group; and III. X IS AN INTEGER OF 1, 2, OR 3. Also described are a process for preparing the compounds of the invention and lubricating compositions containing them.
Inventors
- 👤 John Scotchford Elliott
- 👤 Gerald John Joseph Jayne
- 👤 Herbert Frank Askew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:16
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/173; C07F9/17; C07F9/177; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M137/105; C10M2207/00; C10M2207/10; C10M2207/16; C10M2215/00; C10M2215/086; C10M2215/24; C10M2215/28; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2223/047; C10N; C10N2010/00; C10N2010/14; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
41 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR AMOUNT BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE COMPOSITION, OF A LUBRICATING OIL AND A MINOR AMOUNT, CONFERRING ANTIOXIDANT OR ANTI-WERAR PROPERTIES, BY WEIGHT OF AN OIL-SOLUBLE, ASHLESS ADDITIVE COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
41 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR AMOUNT BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE COMPOSITION, OF A LUBRICATING OIL AND A MINOR AMOUNT, CONFERRING ANTIOXIDANT OR ANTI-WERAR PROPERTIES, BY WEIGHT OF AN OIL-SOLUBLE, ASHLESS ADDITIVE COMPOUND HAVING THE FORMULA:
Claim 3
Dependent Claim
54 words
A lubricating composition according to claim 1 wherein R is the residue of a monocyclic, non-conjugated olefin containing 8 to 12 carbon atoms and at least two ethylenically unsaturated double bonds in the ring, the ring bearing at least one substituent selected from the group consisting of alkyl groups, alkoxy groups and hydroxy groups.
Claim 4
Dependent Claim
23 words
A lubricating composition according to claim 1 wherein R1 is a phenyl or alkyl-substituted phenyl group containing from 7 to 18 carbon atoms.
Claim 5
Dependent Claim
20 words
A lubricating composition according to claim 1 wherein R1 is an alkyl group containing from 3 to 10 carbon atoms.
Claim 6
Dependent Claim
41 words
A lubricating composition according to claim 1 wherein: R is selected from the group consisting of the residue of a monocyclic, non-conjugated olefin containing from 8 to 12 carbon atoms and at least two ethylenically unsaturated double bonds in the ring.
Claim 7
Dependent Claim
52 words
A lubricating composition according to claim 5 wherein R is the residue of a monocyclic, non-conjugated olefin containing 8 to 12 carbon atoms and at least two ethylenically unsaturated double bonds in the ring, the ring bearing at least one substituent selected from the group consisting of alkyl groups and alkoxy groups.
Claim 8
Dependent Claim
23 words
A lubricating composition according to claim 5 wherein R1 is a phenyl or alkyl-substituted phenyl group containing from 7 to 18 carbon atoms.
Claim 9
Dependent Claim
20 words
A lubricating composition according to claim 5 wherein R1 is an alkyl group containing from 3 to 10 carbon atoms.
Claim 10
Dependent Claim
80 words
A lubricating composition according to claim 1 wherein: i. R is the residue of an olefin selected from the group consisting of cyclododeca-1,5,9-triene, cycloocta-1,5-diene, benzylthiocyclododecadiene, cis-5-trans-9-cyclododecadiene-trans-1,2-diol, sulphurised cyclododecatri-1,5,9-ene, 1-acetoxy cyclododecadiene, phenol/cyclododeca-1,5,9-triene reaction product, phosphosulphurised cyclododeca-1,5,9-triene and 1,2-dithiocyanocyclooct-5-ene; ii. each R1 is the same or different and is selected from the group consisting of isobutyl, tridecyl, p-nonylphenyl, capryl, isodecyl, 2-ethylhexyl, p-cresyl, isopropyl and allyl groups; and iii. x is an integer selected from the group consisting of 1, 2 and 3.
Claim 11
Dependent Claim
28 words
A lubricating composition according to claim 1 comprising the additive in an amount of from 0.1 to 10% by weight based on the total weight of the composition.
Claim 12
Dependent Claim
28 words
A lubricating composition according to claim 1 comprising the additive in an amount of from 0.25 to 5% by weight, based on the total weight of the composition.
Claim 13
Dependent Claim
36 words
A lubricating composition according to claim 1 comprising at least one conventional lubricant additive selected from the group consisting of ancillary antioxidants and antiwear additives, corrosion inhibitors, dispersants, detergents, thickeners, pour-point depressants and viscosity index improvers.
Claim 14
Dependent Claim
28 words
An additive concentrate comprising a concentrated solution of a major amount, conferring antioxidant or antiwear properties, by weight of an oil soluble, ashless additive compound having the formula:
Claim 15
Dependent Claim
28 words
An additive concentrate comprising a concentrated solution of a major amount, conferring antioxidant or antiwear properties, by weight of an oil soluble, ashless additive compound having the formula:
Claim 16
Dependent Claim
30 words
An additive package comprising a concentrated solution in mineral oil of a major amount, conferring antioxidant or anti-wear properties, by weight of an oil-soluble, ashless additive compound having the formula:
Claim 17
Dependent Claim
30 words
An additive package comprising a concentrated solution in mineral oil of a major amount, conferring antioxidant or anti-wear properties, by weight of an oil-soluble, ashless additive compound having the formula:
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |