US3872019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil-soluble lubricant bi-functional additives from mannich condensation products of oxidized olefin copolymers, amines and aldehydes
Assignee: BP Corp North America Inc
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Filing: 1972-08-08
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Granted: 1975-03-18
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Expires: 1992-08-08
Abstract
Abstract Bi-functional lubricant additives exhibiting dispersant and V.I. improving properties are obtained by the Mannich Condensation of an oxidized long-chain high molecular weight amorphous copolymer of essentially ethylene and propylene having a number average molecular weight of at least about 10,000 and at least 140 pendant methyl groups per 1,000 chain carbon atoms, with a formaldehyde yielding reactant and a primary or secondary amine or polyamine, said reactants being employed in the molar ratio of from about 1:2:2 to about 1:20:20, respectively.
Inventors
- 👤 George S Culbertson
- 👤 Gary R Chipman
- 👤 Robert E Karll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:36
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C08F2800/00; C08F2800/20; C10M2205/00; C10M2207/00; C10M2207/40; C10M2207/402; C10M2207/404; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/02; C10M2217/04; C10M2217/042; C10M2217/043; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/046; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
117 words
THE OIL-SOLUBLE CONDENSATION PRODUCT PREPARED BY THE PROCESS COMPRISING, REACTING SIMULTANEOUSLY AT A TEMPERATURE OF FROM ABOUT 250*F. TO ABOUT 350*F. (1) AN OXIDIZED HIGH MOLECULAR WEIGHT AMORPHOUS COPOLYMER OF ESSENTIALLY ETHYLENE AND PRPROPYLENE, SAID COPOLYMER HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF AT LEAST ABOUT 10,000 AND AT LEAST 140 PENDANT METHYL GROUPS PER 1,000 CHAIN CARBON ATOMS, (2) A FORMALDEHYDE-YIELDING REACTANT AND (3) A PRIMARY OR SECONDARY ALIPHATIC AMINE SELECTED FRM THE GROUP CONSISTING OF AN ALALKYL AMINE HAVING FROM BOUT 2 TO ABOUT 12 CARBON ATOMS, AN ALIPHATIC DIAMINE OF THE GENERAL FORMULA H2N(CH2)YNH2 WHEREIN Y IS AN INTEGER OF FROM ABOUT 3 TO ABOUT 10, AND A POLYALKYLENE POLYAMINE OF THE GENERAL FORMULA
Claim 2
Dependent Claim
117 words
THE OIL-SOLUBLE CONDENSATION PRODUCT PREPARED BY THE PROCESS COMPRISING, REACTING SIMULTANEOUSLY AT A TEMPERATURE OF FROM ABOUT 250*F. TO ABOUT 350*F. (1) AN OXIDIZED HIGH MOLECULAR WEIGHT AMORPHOUS COPOLYMER OF ESSENTIALLY ETHYLENE AND PRPROPYLENE, SAID COPOLYMER HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF AT LEAST ABOUT 10,000 AND AT LEAST 140 PENDANT METHYL GROUPS PER 1,000 CHAIN CARBON ATOMS, (2) A FORMALDEHYDE-YIELDING REACTANT AND (3) A PRIMARY OR SECONDARY ALIPHATIC AMINE SELECTED FRM THE GROUP CONSISTING OF AN ALALKYL AMINE HAVING FROM BOUT 2 TO ABOUT 12 CARBON ATOMS, AN ALIPHATIC DIAMINE OF THE GENERAL FORMULA H2N(CH2)YNH2 WHEREIN Y IS AN INTEGER OF FROM ABOUT 3 TO ABOUT 10, AND A POLYALKYLENE POLYAMINE OF THE GENERAL FORMULA
Claim 3
Dependent Claim
23 words
The oil-soluble condensation product of claim 1, wherein said copolymer comprises essentially ethylene and from about 30 to about 65 mole percent propylene.
Claim 4
Dependent Claim
72 words
The oil-soluble condensation product of claim 1, wherein said copolymer comprises essentially ethylene, from about 30 to about 65 mole percent propylene, and up to about 20 mole percent of a third olefinic monomer selected from the group having the general formula RCH CH2 wherein R is an aliphatic or cycloaliphatic radical of from 2 to about 20 carbon atoms, and diolefinic monomers having from about 4 to about 25 carbon atoms.
Claim 5
Dependent Claim
15 words
The oil-soluble condensation product of claim 3, in which the third olefinic monomer is 1-decene.
Claim 6
Dependent Claim
21 words
The oil-soluble condensation product of claim 1, in which the formaldehyde-yielding reactant is paraformaldehyde, and the aliphatic diamine is hexamethylene diamine.
Claim 7
Dependent Claim
21 words
The oil-soluble condensation product of claim 1, in which the formaldehyde-yielding reactant is paraformaldehyde, and the polyalkylene polyamine is tetraethylene pentamine.
Claim 8
Dependent Claim
73 words
The oil-soluble condensation product of claim 1, in which the copolymer comprises essentially and about 38-42 mole percent propylene, said copolymer having a number average molecular weight of from about 25,000 to about 35,000, and from about 160 to about 170 pendant methyl groups per 1,000 chain carbon atoms, said formaldehyde-yielding reactant is paraformaldehyde, and said aliphatic diamine is hexamethylene diamine, said reactants being employed in the molar ratio of about 1:14.5:14.5, respectively.
Claim 9
Dependent Claim
30 words
A lubricant composition comprising a major proportion of a normally liquid oleaginous lubricant, and from about 0.1 to about 10 percent of the oil-soluble condensation product defined in claim 1.
Claim 10
Dependent Claim
30 words
A lubricant composition comprising a major proportion of a normally liquid oleaginous lubricant, and from about 0.1 to about 10 percent of the oil-soluble condensation product defined in claim 2.
Claim 11
Dependent Claim
30 words
A lubricant composition comprising, a major proportion of a normally liquid oleaginous lubricant, and from about 0.1 to about 10 percent of the oil-soluble condensation product defined in claim 3.
Claim 12
Dependent Claim
29 words
A lubricant composition comprising, a major proportion of a normally liquid oleaginous lubricant, and from about 0.1 to about 10 percent of the oil-soluble condensation defined in claim 4.
Claim 13
Dependent Claim
30 words
A lubricant composition comprising, a major proportion of a normally liquid oleaginous lubricant, and from about 0.1 to about 10 percent of the oil-soluble condensation product defined in claim 6.
Claim 14
Dependent Claim
27 words
An addition agent concentrate for lubricating oils, comprising a lubricating oil containing from about 10 to about 75 percent of the oil-soluble condensation product defined in claim
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) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |