US4855074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Homogeneous additive concentrates and their formation
Assignee: Afton Chemical Corp
•
Filing: 1988-03-14
•
Granted: 1989-08-08
•
Expires: 2008-03-14
Abstract
Abstract A homogeneous concentrate suitable for use as an additive for lubricating oils is formed from a long chain succinimide and a benzotriazole by heating a mixture of these materials in the presence of water or alkoxylated amines or dihydrocarbylphosphites or dihydrocarbyl phosphonates (or mixtures of such materials) and then distilling the volatile component, from the resulting product. When this heating step is conducted in the additional presence of a boronating agent such as boric acid and the volatile component, is removed by distillation, not only is a compatible additive concentrate formed, but the long chain succinimide is boronated in the process.
Inventors
- 👤 Andrew G. Papay
- 👤 Joseph P. O'Brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:04
CPC Classifications
C; C10; C10M; C10M169/00; C10M169/04; C10M169/045; C08; C08F; C08F8/00; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/221; C10M101/00; C10M125/00; C10M125/14; C10M133/00; C10M133/02; C10M133/04; C10M133/06; C10M133/08; C10M133/38; C10M133/44; C10M133/52; C10M133/56; C10M137/00; C10M137/02; C10M137/12; C10M159/00; C10M159/12; C10M2201/00; C10M2201/02; C10M2203/00; C10M2203/003; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/22; C10M2215/221; C10M2215/223; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/049; C10M2223/06; C10M2223/061; C10M2223/065; C10M2223/10; C10M2227/00; C10M2227/06; C10M2227/061; C10N; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
134 words
A process of forming a homogeneous product from a long chain succinimide in which the chain has a number average molecular weight in the range of 700 to 2,500 and a benzotriazole which at a temperature of 25° C. is normally incompatible therewith, which process comprises (a) heating at a temperature in the range of 50° to about 150° C. and for a time sufficient to achieve homogeneity, a mixture of from about 10 to about 1,000 parts by weight of the succinimide per part by weight of the benzotriazole, optionally with (i) water or (ii) an N,N-bis(hydroxyalkyl)-N-hydrocarbylamine or (iii) a dihydrocarbyl phosphite, or (iv) a dihydrocarbyl phosphonate, or any mixture of any two or any three or all four of (i), (ii), (iii) and (iv); and (b) distilling off excess water, if any.
Claim 2
Dependent Claim
134 words
A process of forming a homogeneous product from a long chain succinimide in which the chain has a number average molecular weight in the range of 700 to 2,500 and a benzotriazole which at a temperature of 25° C. is normally incompatible therewith, which process comprises (a) heating at a temperature in the range of 50° to about 150° C. and for a time sufficient to achieve homogeneity, a mixture of from about 10 to about 1,000 parts by weight of the succinimide per part by weight of the benzotriazole, optionally with (i) water or (ii) an N,N-bis(hydroxyalkyl)-N-hydrocarbylamine or (iii) a dihydrocarbyl phosphite, or (iv) a dihydrocarbyl phosphonate, or any mixture of any two or any three or all four of (i), (ii), (iii) and (iv); and (b) distilling off excess water, if any.
Claim 3
Dependent Claim
10 words
A process of claim 1 wherein the benzotriazole is tolyltriazole.
Claim 4
Dependent Claim
35 words
A process of claim 1 wherein the succinimide is an alkyl or alkenyl succinimide of an alkylene polyamine in which the alkyl or alkenyl group has a number average molecular weight of 900 to 2,100.
Claim 5
Dependent Claim
25 words
A process of claim 3 wherein the succinimide is an alkyl or alkenyl succinimide of a mixture composed predominantly of triethylene tetramine and tetraethylene pentamine.
Claim 6
Dependent Claim
24 words
A process of claim 1 wherein at least a portion of the heating is conducted at a temperature of at least about 80° C.
Claim 7
Dependent Claim
30 words
A process of claim 1 wherein the benzotriazole is tolyltriazole and wherein at least a portion of the heating is conducted at a temperature of at least about 80° C.
Claim 8
Dependent Claim
35 words
A process of claim 6 wherein the succinimide in an alkyl or alkenyl succinimide of an alkylene polyamine in which the alkyl or alkenyl group has a number average molecular weight of 900 to 2,100.
Claim 9
Dependent Claim
32 words
A process of claim 1 wherein said mixture in (a) includes at least about 0.1 part by weight water per part by weight benzotriazole and excess water is distilled off in (b).
Claim 10
Dependent Claim
28 words
A process of claim 1 wherein said mixture in (a) includes at least an N,N-bis(hydroxyalkyl)-N-aliphatic amine in which the aliphatic group contains from 10 to 22 carbon atoms.
Claim 11
Dependent Claim
11 words
A process of claim 9 wherein the amine is N,N-bis-(hydroxyethyl)-N-tallow amine.
Claim 12
Dependent Claim
15 words
A process of claim 1 wherein said mixture in (a) includes at least a dihydrocarbylphosphite.
Claim 13
Dependent Claim
22 words
A process of claim 11 wherein said phosphite is a dialkylphosphite in which each alkyl group has up to 20 carbon atoms.
Claim 14
Dependent Claim
10 words
A process of claim 12 wherein said phosphite is dibutylphosphite.
Claim 15
Dependent Claim
59 words
A process of claim 1 wherein the succinimide is an alkyl or alkenyl succinimide of an alkylene polyamine in which the alkyl or alkenyl group has a number average molecular weight in the range of 900 to 2,100; wherein said mixture in (a) includes at least water and an N,N-bis(hydroxyalkyl)-N-hydrocarbylamine; and wherein excess water is distilled off in (b).
Claim 16
Dependent Claim
59 words
A process of claim 1 wherein the succinimide is an alkyl or alkenyl succinimide of an alkylene polyamine in which the alkyl or alkenyl group has a number average molecular weight in the range of 900 to 2,100; wherein said mixture in (a) includes at least water and a dihydrocarbylphosphite; and wherein excess water is distilled off in (b).
Claim 17
Dependent Claim
52 words
A process of claim 1 wherein the succinimide is an alkyl or alkenyl succinimide of an alkylene polyamine in which the alkyl or alkenyl group has a number average molecular weight in the range of 900 to 2,100; and wherein said mixture in (a) includes at least an N,N-bis(hydroxyalkyl)-N-hydrocarbylamine and a dihydrocarbylphosphite.
Claim 18
Dependent Claim
62 words
A process of claim 1 wherein the succinimide is an alkyl or alkenyl succinimide of an alkylene polyamine in which the alkyl or alkenyl group has a number average molecular weight in the range of 900 to 2,100; wherein said mixture in (a) includes at least water and an N,N-bis(hydroxyalkyl)-N-hydrocarbylamine and a dihydrocarbylphosphite; and wherein excess water is distilled off in (b).
Claim 19
Dependent Claim
9 words
A product produced by the process of claim 1.
Claim 20
Dependent Claim
152 words
A process of forming a homogeneous boronated product from a long chain succinimide in which the chain has a number average molecular weight in the range of 700 to 2,500 and a benzotriazole which at a temperature of 25° C. is normally incompatible therewith, which process comprises (a) heating at a temperature in the range of about 50° to about 150° C. and for a time sufficient to achieve boronation and homogeneity, a mixture of the succinimide, the benzotriazole, and a boronating agent in proportions in parts by weight of 0.1 to 10 parts succinimide, 0.01 to 0.1 parts benzotriazole and 0.01 to 0.3 parts boronating agent, and optionally with (i) water or (ii) an N,N-bis-(hydroxyalkyl)-N-hydrocarbylamine or (iii) a dihydrocarbonyl phosphite, or (iv) a dihydrocarbyl phosphonate, or any mixture of any two or any three or all four of (i), (ii), (iii) and (iv); and (b) distilling off excess water, if any.
Claim 21
Dependent Claim
152 words
A process of forming a homogeneous boronated product from a long chain succinimide in which the chain has a number average molecular weight in the range of 700 to 2,500 and a benzotriazole which at a temperature of 25° C. is normally incompatible therewith, which process comprises (a) heating at a temperature in the range of about 50° to about 150° C. and for a time sufficient to achieve boronation and homogeneity, a mixture of the succinimide, the benzotriazole, and a boronating agent in proportions in parts by weight of 0.1 to 10 parts succinimide, 0.01 to 0.1 parts benzotriazole and 0.01 to 0.3 parts boronating agent, and optionally with (i) water or (ii) an N,N-bis-(hydroxyalkyl)-N-hydrocarbylamine or (iii) a dihydrocarbonyl phosphite, or (iv) a dihydrocarbyl phosphonate, or any mixture of any two or any three or all four of (i), (ii), (iii) and (iv); and (b) distilling off excess water, if any.
Claim 22
Dependent Claim
34 words
A process of claim 19 wherein the boronating agent is boric acid and wherein at least a portion of the heating is conducted at a temperature in the range of 100° to 120° C.
Claim 23
Dependent Claim
151 words
A process of forming a homogeneous boronated product from a long chain succinimide in which the chain has a number average molecular weight in the range of 700 to 2,500 and a benzotriazole which at a temperature of 25° C. is normally incompatible therewith, which process comprises (a) heating at a temperature in the range of about 50° to about 150° C. and for a time sufficient to achieve boronation and homogeneity, a mixture of the succinimide, the benzotriazole, a boronating agent, and water or an N,N-bis(hydroxyalkyl)-N-hydrocarbylamine or both in proportions in parts by weight of 0.1 to 10 parts succinimide, 0.01 to 0.1 part benzotriazole, 0.01 to 0.3 part boronating agent, and 0.01 to 0.1 part water or 0.01 to 1 part N,N-bis(hydroxyalkyl)-N-hydrocarbyl amine or both, optionally with (i) a dihydrocarbyl phosphite, or (ii) a dihydrocarbyl phosphonate, or any mixture of (i) and (ii); and (b) distilling off excess water.
Claim 24
Dependent Claim
151 words
A process of forming a homogeneous boronated product from a long chain succinimide in which the chain has a number average molecular weight in the range of 700 to 2,500 and a benzotriazole which at a temperature of 25° C. is normally incompatible therewith, which process comprises (a) heating at a temperature in the range of about 50° to about 150° C. and for a time sufficient to achieve boronation and homogeneity, a mixture of the succinimide, the benzotriazole, a boronating agent, and water or an N,N-bis(hydroxyalkyl)-N-hydrocarbylamine or both in proportions in parts by weight of 0.1 to 10 parts succinimide, 0.01 to 0.1 part benzotriazole, 0.01 to 0.3 part boronating agent, and 0.01 to 0.1 part water or 0.01 to 1 part N,N-bis(hydroxyalkyl)-N-hydrocarbyl amine or both, optionally with (i) a dihydrocarbyl phosphite, or (ii) a dihydrocarbyl phosphonate, or any mixture of (i) and (ii); and (b) distilling off excess water.
Claim 25
Dependent Claim
10 words
A process of claim 21 wherein the benzotriazole is tolyltriazole.
Claim 26
Dependent Claim
35 words
A process of claim 21 wherein the succinimide in an alkyl or alkenyl succinimide of an alkylene polyamine in which the alkyl or alkenyl group has a number average molecular weight of 900 to 2,100.
Claim 27
Dependent Claim
25 words
A process of claim 23 wherein the succinimide is an alkyl or alkenyl succinimide of a mixture composed predominantly of triethylene tetramine an tetraethylene pentamine.
Claim 28
Dependent Claim
28 words
A process of claim 21 wherein at least a portion of the heating is conducted at a temperature in the range of about 100° to about 120° C.
Claim 29
Dependent Claim
12 words
A process of claim 21 wherein the boronating agent is boric acid.
Claim 30
Dependent Claim
34 words
A process of claim 21 wherein the benzotriazole is tolyltriazole and wherein at least a portion of the heating is conducted at a temperature in the range of about 100° to about 120° C.
Claim 31
Dependent Claim
35 words
A process of claim 27 wherein the succinimide in an alkyl or alkenyl succinimide of an alkylene polyamine in which the alkyl or alkenyl group has a number average molecular weight of 900 to 2,100.
Claim 32
Dependent Claim
28 words
A process of claim 21 wherein said mixture in (a) includes at least an N,N-bis(hydroxyalkyl)-N-aliphatic amine in which the aliphatic group contains from 10 to 22 carbon atoms.
Claim 33
Dependent Claim
11 words
A process of claim 29 wherein the amine is N,N-bis-(hydroxyethyl)-N-tallow amine.
Claim 34
Dependent Claim
19 words
A process of claim 21 wherein said mixture in (a) includes 0.1 to 1 part by weight a dihydrocarbylphosphite.
Claim 35
Dependent Claim
22 words
A process of claim 31 wherein said phosphite is a dialkylphosphite in which each alkyl group has up to 20 carbon atoms.
Claim 36
Dependent Claim
10 words
A process of claim 32 wherein said phosphite is dibutylphosphite.
Claim 37
Dependent Claim
52 words
A process of claim 21 wherein the succinimide is an alkyl or alkenyl succinimide of an alkylene polyamine in which the alkyl or alkenyl group has a number average molecular weight in the range of 900 to 2,100; and wherein said mixture in (a) includes at least an N,N-bis(hydroxyalkyl)-N-hydrocarbylamine and a dihydrocarbylphosphite.
Claim 38
Dependent Claim
60 words
A process of claim 21 wherein the succinimide is an alkyl or alkenyl succinimide of a alkylene polyamine in which the alkyl or alkenyl group has a number average molecular weight in the range of 900 to 2,100; and wherein said mixture in (a) includes at least an N,N-bis(hydroxyalkyl)N-hydrocarbylamine and 0.01 to 0.3 parts by weight of a dihydrocarbyl phosphonate.
Claim 39
Dependent Claim
55 words
A process of claim 21 wherein the succinimide is an alkyl or alkenyl succinimide of an alkylene polyamine in which the alkyl or alkenyl group has a number average molecular weight in the range of 900 to 2,100; and wherein said mixture in (a) includes at least an N,N-bis(hydroxyalkyl)-N-hydrocarbylamine, a dihydrocarbylphosphite and a dihydrocarbyl phosphonate.
Claim 40
Dependent Claim
85 words
A process of claim 21 wherein said mixture consists essentially of the succinimide, the benzotriazole, a boronating agent, and water; wherein the succinimide in an alkyl or alkenyl succinimide of an alkylene polyamine in which the alkyl or alkenyl group has a number average molecular weight of 900 to 2,100; wherein the benzotriazole is tolyltriazole; wherein the boronating agent is boric acid; and wherein at least a portion of the heating is conducted at a temperature in the range of about 100° to 120° C.
Claim 41
Dependent Claim
104 words
A process of claim 21 wherein said mixture consists essentially of the succinimide, the benzotriazole, a boronating agent, and an N,N-bis(hydroxyethyl)-N-hydrocarbylamine in which the hydrocarbyl group is an alkyl or alkenyl group containing from 10 to 22 carbon atoms; wherein the succinimide in an alkyl or alkenyl succinimide of an alkylene polyamine in which the alkyl or alkenyl group has a number average molecular weight of 900 to 2,100; wherein the benzotriazole is tolyltriazole; wherein the boronating agent is boric acid; and wherein at least a portion of the heating is conducted at a temperature in the range of about 100° to 120° C.
Claim 42
Dependent Claim
9 words
A product produced by the process of claim 19.
References Cited (Backward Citations)
US3219666A
Cited
US3202678A
Cited
US3254025A
Cited
US3087936A
Cited
US3281428A
Cited
US3338832A
Cited
US3413227A
Cited
US3306908A
Cited
US3272746A
Cited
US3623985A
Cited
US3788993A
Cited
US3950341A
Cited
US3991056A
Cited
US3923672A
Cited
US4263015A
Cited
US4256595A
Cited
US4212754A
Cited
US4388201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-07 | 1993-02-06 | 1993-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-07 | 1997-02-06 | 1997-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-07 | 2001-02-06 | 2001-08-08 | $7700.00 | Window Closed / Lapsed |