US4965002A
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Phosphite amine lubricant additives
Assignee: Elco Corp
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Filing: 1988-01-27
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Granted: 1990-10-23
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Expires: 2008-01-27
Abstract
Abstract Lubricant additives are produced by reacting an alkoxylated amine, preferably a dialkoxy long chain alkyl amine, such as a propoxylated amine, with a disubstituted organic phosphite, preferably a dialkyl (C 8 -C 30 ) phosphite. The additives preferably also contain a boron moiety which is reacted with the phosphite and amine, preferably simultaneously in a one step reaction. The additives are particularly useful in metalworking oils and particularly as extreme pressure additives to replace the currently used chlorinated paraffin additives.
Inventors
- 👤 William T. Brannen
- 👤 Gerald D. Burt
- 👤 Randolph A. McDonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:24
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/123; C10M133/00; C10M133/02; C10M133/04; C10M133/06; C10M133/08; C10M137/00; C10M137/02; C10M139/00; C10M2201/00; C10M2201/02; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/049; C10M2223/10; C10M2227/00; C10M2227/06; C10M2227/061; C10M2227/062; C10M2227/063; C10M2227/065; C10M2227/066; C10N; C10N2040/00; C10N2040/20
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
80 words
A lubricant additive comprising the reaction product of (a) an alkoxylated amine of the formula ##STR3## wherein R is a C 6 to C 30 hydrocarbon group, each R 1 is individually hydrogen or a C 1 to C 6 hydrocarbon group, and x and y are integers from 0 to 10, at least one of which is not 0, with (b) a phosphite of the formula ##STR4## wherein R 2 is a C 8 to C 30 hydrocarbon group.
Claim 2
Dependent Claim
80 words
A lubricant additive comprising the reaction product of (a) an alkoxylated amine of the formula ##STR3## wherein R is a C 6 to C 30 hydrocarbon group, each R 1 is individually hydrogen or a C 1 to C 6 hydrocarbon group, and x and y are integers from 0 to 10, at least one of which is not 0, with (b) a phosphite of the formula ##STR4## wherein R 2 is a C 8 to C 30 hydrocarbon group.
Claim 3
Dependent Claim
67 words
A product according to claim 1 wherein the reaction product is the reaction product of (I) and (II) with (c) a boron compound selected from the group consisting of boric oxide, a metaborate, and a compound of the formula (R.sup.3 O).sub.m B(OH).sub.n (III) wherein R 3 is a C 1 to C 6 alkyl group, and m and n are 0 to 3, their sum being 3.
Claim 4
Dependent Claim
17 words
A product according to claim 2 wherein the reaction of (a), (b) and (c) is substantially simultaneous.
Claim 5
Dependent Claim
21 words
A product according to claim 2 wherein the reaction is carried out at a temperature of about 50° to 250° C.
Claim 6
Dependent Claim
13 words
A product according to claim 2 wherein said boron compound is boric acid.
Claim 7
Dependent Claim
24 words
A product according to claim 2 wherein the molar ratio of amine compound to boron compound in the reaction is about 30:1 to 1:1.
Claim 8
Dependent Claim
24 words
A product according to claim 2 wherein the molar ratio of phosphite compound to boron compound in the reaction is about 0.5:1 to 20:1.
Claim 9
Dependent Claim
20 words
A product according to claim 1 wherein the molar ratio of amine compound to phosphite compound is 0.5:1 to 4:1.
Claim 10
Dependent Claim
13 words
A product according to claim 1 wherein said phosphite is a dialkyl phosphite.
Claim 11
Dependent Claim
23 words
A product according to claim 9 wherein said phosphite is selected from the group consisting of dioleyl phosphite, dilauryl phosphite, and di(2-ethylhexyl) phosphite.
Claim 12
Dependent Claim
41 words
A product according to claim 1 wherein said alkoxylated amine is selected from the group in which R is C 10 to C 20 alkyl, R 1 is hydrogen, methyl or a mixture thereof, and x and y are each 1.
Claim 13
Dependent Claim
12 words
A product according to claim 11 wherein said alkoxylated amine is bis(2-hydroxypropyl)tallowamine.
Claim 14
Dependent Claim
98 words
A lubricant composition comprising a major proportion of a lubricating oil and a friction reducing amount of a lubricant additive comprising the reaction product of (a) an alkoxylated amine of the formula ##STR5## wherein R is a C 6 to C 30 hydrocarbon group, each R 1 is individually hydrogen or a C 1 to C 6 hydrocarbon group, and x and y are integers of from 0 to 10, at least one of which is not 0, with (b) a phosphite of the formula ##STR6## wherein R 2 is a C 8 to C 30 hydrocarbon group.
Claim 15
Dependent Claim
98 words
A lubricant composition comprising a major proportion of a lubricating oil and a friction reducing amount of a lubricant additive comprising the reaction product of (a) an alkoxylated amine of the formula ##STR5## wherein R is a C 6 to C 30 hydrocarbon group, each R 1 is individually hydrogen or a C 1 to C 6 hydrocarbon group, and x and y are integers of from 0 to 10, at least one of which is not 0, with (b) a phosphite of the formula ##STR6## wherein R 2 is a C 8 to C 30 hydrocarbon group.
Claim 16
Dependent Claim
18 words
A lubricant composition according to claim 13 wherein said lubricating oil is a soluble oil emulsifiable in water.
Claim 17
Dependent Claim
26 words
A lubricant composition according to claim 13 wherein the pH of said product is adjusted to about 5.5 to 7 by addition of an alkyl amine.
Claim 18
Dependent Claim
24 words
A composition according to claim 13 wherein said product is present in the oil in an amount of about 0.1 to 10 weight percent.
Claim 19
Independent Claim
99 words
A method of lubricating a metalworking operation comprising performing said operation in the presence of a lubricating oil containing a lubricant additive comprising the reaction product of (a) an alkoxylated amine of the formula ##STR7## wherein R is a C 6 to C 30 hydrocarbon group, each R 1 is individually hydrogen or a C 1 to C 6 hydrocarbon group, and x and y are integers of from 0 to 10, at least one which is not 0, with (b) a phosphite of the formula ##STR8## wherein R 2 is a C 8 to C 30 hydrocarbon group.
Claim 20
Independent Claim
99 words
A method of lubricating a metalworking operation comprising performing said operation in the presence of a lubricating oil containing a lubricant additive comprising the reaction product of (a) an alkoxylated amine of the formula ##STR7## wherein R is a C 6 to C 30 hydrocarbon group, each R 1 is individually hydrogen or a C 1 to C 6 hydrocarbon group, and x and y are integers of from 0 to 10, at least one which is not 0, with (b) a phosphite of the formula ##STR8## wherein R 2 is a C 8 to C 30 hydrocarbon group.
Claim 21
Dependent Claim
14 words
A method according to claim 17 wherein said operation is an extreme pressure operation.
Claim 22
Independent Claim
140 words
A method of making a lubricant additive comprising reacting (a) an alkoxylated amine of the formula ##STR9## wherein R is a C 6 to C 30 hydrocarbon group, each R 1 is individually hydrogen or a C 1 to C 6 hydrocarbon group, and x and y are integers of from 0 to 10, at least one of which is not 0; (b) a phosphite of the formula ##STR10## wherein R 2 is a C 8 to C 30 hydrocarbon group; and (c) a boron compound selected from the group consisting of boric oxide, a metaborate, and a compound of the formula (R.sup.3 O).sub.m B(OH).sub.n (III) wherein R 3 is a C 1 to C 6 alkyl group, and m and n are 0 to 3, their sum being 3; and wherein (a) (b) and (c) are reacted substantially simultaneously.
Claim 23
Independent Claim
140 words
A method of making a lubricant additive comprising reacting (a) an alkoxylated amine of the formula ##STR9## wherein R is a C 6 to C 30 hydrocarbon group, each R 1 is individually hydrogen or a C 1 to C 6 hydrocarbon group, and x and y are integers of from 0 to 10, at least one of which is not 0; (b) a phosphite of the formula ##STR10## wherein R 2 is a C 8 to C 30 hydrocarbon group; and (c) a boron compound selected from the group consisting of boric oxide, a metaborate, and a compound of the formula (R.sup.3 O).sub.m B(OH).sub.n (III) wherein R 3 is a C 1 to C 6 alkyl group, and m and n are 0 to 3, their sum being 3; and wherein (a) (b) and (c) are reacted substantially simultaneously.
Claim 24
Dependent Claim
16 words
A method according to claim 19 wherein said reaction is in the absence of a solvent.
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