Patent US3488243A successfully refreshed from Google Patents.
Patent US5580482A successfully refreshed from Google Patents.
US5580482A
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Stabilized lubricant compositions
Assignee: Novartis Corp
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Filing: 1995-01-13
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Granted: 1996-12-03
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Expires: 2015-01-13
Abstract
Abstract The instant invention relates to a lubricant composition stabilized against the deleterious effects of heat and oxygen. The composition comprises a triglyceride oil or an oil which is an ester wherein unsaturation is present in either the alcohol moiety or the acid moiety and an effective stabilizing amount of either an N,N-disubstituted aminomethyl-1,2,4-triazole or an N,N-disubstituted aminomethylbenzotriazole; a higher alkyl substituted amide of dodecylene succinic acid; a phenolic antioxidant; and an aromatic amine antioxidant. Further additives can be added to these lubricant formulations.
Inventors
- 👤 David E. Chasan
- 👤 Patricia R. Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:04
CPC Classifications
C; C10; C10M; C10M169/00; C10M169/04; C10M169/048; C10M111/00; C10M101/00; C10M101/04; C10M105/00; C10M105/08; C10M105/32; C10M105/34; C10M105/38; C10M105/40; C10M129/00; C10M129/02; C10M129/04; C10M129/10; C10M129/14; C10M129/68; C10M129/76; C10M133/00; C10M133/02; C10M133/04; C10M133/12; C10M133/16; C10M133/38; C10M133/44; C10M133/46; C10M135/00; C10M135/20; C10M135/22; C10M135/26; C10M135/28; C10M135/30; C10M157/00; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/026; C10M2207/027; C10M2207/28; C10M2207/281; C10M2207/2815; C10M2207/282; C10M2207/283; C10M2207/2835; C10M2207/284; C10M2207/2845; C10M2207/286; C10M2207/287; C10M2207/2875; C10M2207/288; C10M2207/2885; C10M2207/289; C10M2207/2895; C10M2207/40; C10M2207/401; C10M2207/402; C10M2207/404; C10M2207/4045; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/067; C10M2215/068; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/12; C10M2215/122; C10M2215/22; C10M2215/221; C10M2215/223; C10M2215/224; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/084; C10M2219/085; C10M2219/087; C10M2219/088
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
382 words
A lubricant composition stabilized against the deleterious effects of heat and oxygen, which composition comprises (a)(i) a natural triglyceride oil which is an ester of a straight-chain C 10 to C 22 fatty acid and glycerol, which triglyceride has an iodine number of at least about 9 and not more than about 133 illustrating its degree of unsaturation; or (ii) a natural or synthetic oil which is an ester wherein unsaturation is present in either the alcohol moiety or the acid moiety or both; (b)(i) an effective stabilizing amount of a metal deactivator of the formula ##STR10## wherein R 1 and R 2 are, independently of one another, hydrogen, C 1 -C 20 alkyl, C 3 -C 20 alkenyl, C 5 -C 12 cycloalkyl, C 7 -C 13 aralkyl, C 6 -C 10 aryl, hydroxyl, or R 1 and R 2 , together with the nitrogen atom to which they are attached, form a 5-, 6- or 7-membered heterocyclic residue, or R 1 and R 2 is each a residue of formula R.sub.16 X[(alkylene)O].sub.n (alkylene)-- (II) in which X is O, S or N; R 16 is hydrogen or C 1 -C 20 alkyl; alkylene is a C 1 -C 12 alkylene residue; and n is O or an integer from 1 to 6; or R 1 has its previous significance and R 2 is a residue of formula ##STR11## or R 2 is a residue of formula (III) as defined above and R 1 is a residue of formula --[alkylene].sub.n --N(R.sub.17)--A--[N(R.sub.17).sub.2 ].sub.m(IV) in which m is 0 or 1 and, when m is 0, A is a residue of formula (III) and, when m is 1, A is alkylene or C 6 -C 10 arylene, and alkylene and n have their previous significance and R 17 is a residue of formula III, as defined above; or (ii) a metal deactivator of the formula ##STR12## wherein R 3 and R 4 , each independently of the other, are as R 1 and R 2 defined hereinabove; and R 5 is hydrogen or C 1 -C 12 alkyl; (c) an effective stabilizing amount of a higher alkyl substituted amide of dodecylene succinic acid; (d) an effective stabilizing amount of a phenolic antioxidant; and (e) an effective stabilizing amount of an aromatic amine antioxidant.
Claim 2
Dependent Claim
382 words
A lubricant composition stabilized against the deleterious effects of heat and oxygen, which composition comprises (a)(i) a natural triglyceride oil which is an ester of a straight-chain C 10 to C 22 fatty acid and glycerol, which triglyceride has an iodine number of at least about 9 and not more than about 133 illustrating its degree of unsaturation; or (ii) a natural or synthetic oil which is an ester wherein unsaturation is present in either the alcohol moiety or the acid moiety or both; (b)(i) an effective stabilizing amount of a metal deactivator of the formula ##STR10## wherein R 1 and R 2 are, independently of one another, hydrogen, C 1 -C 20 alkyl, C 3 -C 20 alkenyl, C 5 -C 12 cycloalkyl, C 7 -C 13 aralkyl, C 6 -C 10 aryl, hydroxyl, or R 1 and R 2 , together with the nitrogen atom to which they are attached, form a 5-, 6- or 7-membered heterocyclic residue, or R 1 and R 2 is each a residue of formula R.sub.16 X[(alkylene)O].sub.n (alkylene)-- (II) in which X is O, S or N; R 16 is hydrogen or C 1 -C 20 alkyl; alkylene is a C 1 -C 12 alkylene residue; and n is O or an integer from 1 to 6; or R 1 has its previous significance and R 2 is a residue of formula ##STR11## or R 2 is a residue of formula (III) as defined above and R 1 is a residue of formula --[alkylene].sub.n --N(R.sub.17)--A--[N(R.sub.17).sub.2 ].sub.m(IV) in which m is 0 or 1 and, when m is 0, A is a residue of formula (III) and, when m is 1, A is alkylene or C 6 -C 10 arylene, and alkylene and n have their previous significance and R 17 is a residue of formula III, as defined above; or (ii) a metal deactivator of the formula ##STR12## wherein R 3 and R 4 , each independently of the other, are as R 1 and R 2 defined hereinabove; and R 5 is hydrogen or C 1 -C 12 alkyl; (c) an effective stabilizing amount of a higher alkyl substituted amide of dodecylene succinic acid; (d) an effective stabilizing amount of a phenolic antioxidant; and (e) an effective stabilizing amount of an aromatic amine antioxidant.
Claim 3
Dependent Claim
38 words
A composition according to claim 1, wherein component (b) and component (c) are each, independently of the other, are present in the amount of from about 0.03 to about 1.0%, relative to the weight of the stabilized composition.
Claim 4
Dependent Claim
38 words
A composition according to claim 2, wherein component (b) and component (c) are each, independently of the other, are present in the amount of from about 0.04 to about 0.4%, relative to the weight of the stabilized composition.
Claim 5
Dependent Claim
13 words
A composition according to claim 1, wherein component (a)is a vegetable triglyceride oil.
Claim 6
Dependent Claim
48 words
A composition according to claim 4, wherein component (a) consists of palm nut oil, palm oil, olive oil, rapeseed oil, canola oil, linseed oil, ground nut oil, soybean oil, cottonseed oil, sunflower seed oil, pumpkin seed oil, coconut oil, corn oil, castor oil, walnut oil or mixtures thereof.
Claim 7
Dependent Claim
21 words
A composition according to claim 5, wherein component (a) consists of rapeseed oil, canola oil, sunflower seed oil or mixtures thereof.
Claim 8
Dependent Claim
13 words
A composition according to claim 1, wherein component (a) is a fish oil.
Claim 9
Dependent Claim
34 words
A composition according to claim 1, wherein component (a) is an ester of at least one straight chain fatty acid and glycerol, said fatty acid containing from about 8 to about 22 carbon atoms.
Claim 10
Dependent Claim
13 words
A composition according to claim 8, wherein said fatty acid is oleic acid.
Claim 11
Dependent Claim
11 words
A composition according to claim 1, wherein component (b)(ii) is 1-[bis(2-ethylhexyl)aminomethyl]-4-methylbenzotriazole.
Claim 12
Dependent Claim
11 words
A composition according to claim 1, wherein component (b)(i) is 1-[bis(2-ethylhexyl)aminomethyl]-1,2,4-triazole.
Claim 13
Dependent Claim
17 words
A composition according to claim 1, wherein component (c) is substituted (2-higher alkyl-2-imidazolin-1-yl)-3-iminopentamethylene dodecylene succinamide (HITEC® 536).
Claim 14
Dependent Claim
22 words
A composition according to claim 1, wherein component (b)(i) is 1-[bis(2-ethylhexyl)aminomethyl]-1,2,4-triazole and component (c) is substituted (2-higher alkyl-2-imidazolin-1-yl)-3-iminopentamethylene dodecylene succinamide (HITEC® 536).
Claim 15
Dependent Claim
39 words
A composition according to claim 1, wherein component (d) is 2,6-di-tert-butyl phenol; BHT; 2,2'-methylene-bis-(4,6-di-tert-butylphenol); 1,6-hexamethylene-bis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate); (((3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)methyl)thio) acetic acid, C 10 -C 14 isoalkyl esters; 3,5-di-tert-butyl-4-hydoxyhydrocinnamic acid, C 7 -C 9 alkyl esters; tetrakis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionyloxymethyl)methane; thiodiethylene bis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate; octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate; or 2,5-di-tert-butyl-hydroquinone.
Claim 16
Dependent Claim
18 words
A composition according to claim 14, wherein component (d) is 2,6-di-tert-butyl phenol; tetrakis-[(3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionyloxymethyl]methane; 1,6-hexamethylene-bis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate ); or thiodiethylene bis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate).
Claim 17
Dependent Claim
40 words
A composition according to claim 1, wherein component (e) is tert-octyl-N-phenyl-1-naphthylamine or a diphenylamine, or mixture thereof, of formula VI ##STR13## wherein R 6 and R 7 are, each independently of the other, hydrogen or C 1 -C 20 alkyl.
Claim 18
Dependent Claim
22 words
A composition according to claim 16, wherein R 6 and R 7 are, each independently of the other, hydrogen, butyl or octyl.
Claim 19
Dependent Claim
43 words
A composition according to claim 1, which further comprises an additive, or mixtures thereof, selected from a further antioxidant, a further metal deactivator, a further corrosion inhibitor, a viscosity improver, a dispersant, a detergent, an extreme-pressure and antiwear additive and a pour-point depressant.
Claim 20
Dependent Claim
53 words
A composition according to claim 1, wherein component (b)(i) is 1-[bis(2-ethylhexyl)-aminomethyl]-1,2,4-triazole, component (c) is substituted (2-higher alkyl-2-imidazolin- 1-yl)-3-iminopentamethylene dodecylene succinamide (HITEC®536); component (d) is 1,6-hexamethylene-bis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate; and component (e) is a diphenylamine, or mixtures thereof, of formula ##STR14## wherein R 6 and R 7 are, each independently of the other, hydrogen, butyl or octyl.
Claim 21
Dependent Claim
31 words
A composition according to claim 19, wherein the additives (b), (c), (d) and (e) are added to component (a) in a weight ratio relative to one another of approximately 1:1:3.25:1, respectively.
Claim 22
Dependent Claim
36 words
A composition according to claim 1, wherein components (d) and (e) are each, independently of the other, present in the amount of from about 0.05 to about 8.0%, relative to the weight of the stabilized composition.
Claim 23
Dependent Claim
383 words
A process for stabilizing (i) a natural triglyceride oil which is an ester of a straight-chain C 10 to C 22 fatty acid and glycerol, which triglyceride has an iodine number of at least about 9 and not more than about 133; or (ii) a natural or synthetic oil which is an ester wherein unsaturation is present in either the alcohol moiety or the acid moiety against the deleterious effects of heat and oxygen, which process comprises the steps of adding to said oil (a)(i) an effective stabilizing amount of a metal deactivator of the formula ##STR15## wherein R 1 and R 2 are, independently of one another, hydrogen, C 1 -C 20 alkyl, C 3 -C 20 alkenyl, C 5 -C 12 cycloalkyl, C 7 -C 13 aralkyl, C 6 -C 10 aryl, hydroxyl, or R 1 and R 2 , together with the nitrogen atom to which they are attached, form a 5-, 6- or 7-membered heterocyclic residue, or R 1 and R 2 is each a residue of formula R.sub.16 X[(alkylene)O].sub.n (alkylene)-- (II) in which X is O, S or N; R16 is hydrogen or C 1 -C 20 alkyl; alkylene is a C 1 -C 12 alkylene residue; and n is 0 or an integer from 1 to 6; or R 1 has its previous significance and R 2 is a residue of formula ##STR16## or R 2 is a residue of formula (III) as defined above and R 1 is a residue of formula --[alkylene].sub.n --N(R.sub.17)--A--[N(R.sub.17).sub.2 ].sub.m(IV) in which m is 0 or 1 and, when m is 0, A is a residue of formula (III) and, when m is 1, A is alkylene or C 6 -C 10 arylene, and alkylene and n have their previous significance and R 17 is a residue of formula III, as defined above; or (ii) a metal deactivator of the formula ##STR17## wherein R 3 and R 4 , each independently of the other, are as R 1 and R 2 defined hereinabove; and R 5 is hydrogen or C 1 -C 12 alkyl; and (b) an effective stabilizing amount of a higher alkyl substituted amide of dodecylene succinic acid; (c) an effective stabilizing amount of a hindered phenolic antioxidant; and (d) an effective stabilizing amount of an aromatic amine stabilizer.
Claim 24
Dependent Claim
383 words
A process for stabilizing (i) a natural triglyceride oil which is an ester of a straight-chain C 10 to C 22 fatty acid and glycerol, which triglyceride has an iodine number of at least about 9 and not more than about 133; or (ii) a natural or synthetic oil which is an ester wherein unsaturation is present in either the alcohol moiety or the acid moiety against the deleterious effects of heat and oxygen, which process comprises the steps of adding to said oil (a)(i) an effective stabilizing amount of a metal deactivator of the formula ##STR15## wherein R 1 and R 2 are, independently of one another, hydrogen, C 1 -C 20 alkyl, C 3 -C 20 alkenyl, C 5 -C 12 cycloalkyl, C 7 -C 13 aralkyl, C 6 -C 10 aryl, hydroxyl, or R 1 and R 2 , together with the nitrogen atom to which they are attached, form a 5-, 6- or 7-membered heterocyclic residue, or R 1 and R 2 is each a residue of formula R.sub.16 X[(alkylene)O].sub.n (alkylene)-- (II) in which X is O, S or N; R16 is hydrogen or C 1 -C 20 alkyl; alkylene is a C 1 -C 12 alkylene residue; and n is 0 or an integer from 1 to 6; or R 1 has its previous significance and R 2 is a residue of formula ##STR16## or R 2 is a residue of formula (III) as defined above and R 1 is a residue of formula --[alkylene].sub.n --N(R.sub.17)--A--[N(R.sub.17).sub.2 ].sub.m(IV) in which m is 0 or 1 and, when m is 0, A is a residue of formula (III) and, when m is 1, A is alkylene or C 6 -C 10 arylene, and alkylene and n have their previous significance and R 17 is a residue of formula III, as defined above; or (ii) a metal deactivator of the formula ##STR17## wherein R 3 and R 4 , each independently of the other, are as R 1 and R 2 defined hereinabove; and R 5 is hydrogen or C 1 -C 12 alkyl; and (b) an effective stabilizing amount of a higher alkyl substituted amide of dodecylene succinic acid; (c) an effective stabilizing amount of a hindered phenolic antioxidant; and (d) an effective stabilizing amount of an aromatic amine stabilizer.
Claim 25
Dependent Claim
52 words
A process according to claim 22, further comprising the steps of adding an effective stabilizing amount of a further additive, or mixtures thereof, selected from a further antioxidant, a further metal deactivator, a further corrosion inhibitor, a viscosity improver, a dispersant, a detergent, an extreme-pressure and antiwear additive and a pour-point depressant.
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