US4295983A
Expired / Lapsed
US
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Lubricating oil composition containing boronated N-hydroxymethyl succinimide friction reducers
Assignee: EDWIN COOPER Inc A CORP OF DE
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Filing: 1980-06-12
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Granted: 1981-10-20
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Expires: 2000-06-12
Abstract
Abstract Engine fuel economy is improved by adding a friction-reducing amount of a boronated N-hydroxymethyl aliphatic hydrocarbyl succinimide to the engine crankcase oil.
Inventors
- 👤 Andrew G. Papay
- 👤 Joseph P. O'Brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:50
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C07D207/412; C07F; C07F5/00; C07F5/02; C07F5/04; C10; C10M; C10M133/00; C10M133/02; C10M133/16; C10M139/00; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/02; C10M2205/028; C10M2205/06; C10M2205/10; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/027; C10M2207/028; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/064; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2223/06; C10M2223/065; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10M2227/00; C10M2227/06; C10M2227/061; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
85 words
A friction reducing lubricating oil additive comprising the reaction product of an N-hydroxymethyl aliphatic hydrocarbyl succinimide with an amount of a boronating agent sufficient to impart about 0.1 to 1.5 weight percent boron to said reaction product, said reaction product being made at about 50°-200° C., said N-hydroxymethyl aliphatic hydrocarbyl succinimide prepared by reacting NH 3 with an aliphatic C 12 -C 36 hydrocarbyl succinic anhydride to form the corresponding succinimide and subsequently reacting the succinimide with formaldehyde to form said N-hydroxymethyl aliphatic hydrocarbyl succinimide.
Claim 2
Dependent Claim
85 words
A friction reducing lubricating oil additive comprising the reaction product of an N-hydroxymethyl aliphatic hydrocarbyl succinimide with an amount of a boronating agent sufficient to impart about 0.1 to 1.5 weight percent boron to said reaction product, said reaction product being made at about 50°-200° C., said N-hydroxymethyl aliphatic hydrocarbyl succinimide prepared by reacting NH 3 with an aliphatic C 12 -C 36 hydrocarbyl succinic anhydride to form the corresponding succinimide and subsequently reacting the succinimide with formaldehyde to form said N-hydroxymethyl aliphatic hydrocarbyl succinimide.
Claim 3
Dependent Claim
34 words
An additive of claim 1 wherein said boronating agent is selected from the group consisting of boron acid, boron oxide, esters of boron acid, boron acid salts, boron halide and mixtures of the foregoing.
Claim 4
Dependent Claim
14 words
An additive of claim 2 wherein said hydrocarbyl group contains about 16-22 carbon atoms.
Claim 5
Dependent Claim
15 words
An additive of claim 3 wherein said boronating agent is a lower alkyl borate ester.
Claim 6
Dependent Claim
12 words
An additive of claim 3 wherein said boronating agent is boric acid.
Claim 7
Dependent Claim
17 words
An additive of claim 1 which is the reaction product of N-hydroxymethyl octadecenylsuccinimide with a boronating agent.
Claim 8
Dependent Claim
15 words
An additive of claim 6 wherein said boronating agent is a lower alkyl borate ester.
Claim 9
Dependent Claim
12 words
An additive of claim 6 wherein said boronating agent is boric acid.
Claim 10
Dependent Claim
24 words
Lubricating oil formulated for use in the crankcase of an internal combustion engine containing a friction-reducing amount of the reaction product of claim 1.
Claim 11
Dependent Claim
36 words
A lubricating oil composition of claim 9 wherein said boronating agent is selected from the group consisting of boron acids, boron oxides, esters of boron acids, boron acid salts, boron halides and mixtures of the foregoing.
Claim 12
Dependent Claim
15 words
A lubricating composition of claim 10 wherein said hydrocarbyl group contains about 16-22 carbon atoms.
Claim 13
Dependent Claim
17 words
A lubricating oil composition of claim 11 wherein said boronating agent is a lower alkyl borate ester.
Claim 14
Dependent Claim
14 words
A lubricating oil composition of claim 11 wherein said boronating agent is boric acid.
Claim 15
Dependent Claim
22 words
A lubricating oil composition of claim 9 wherein said reaction product is the reaction product of N-hydroxymethyl octadecenylsuccinimide with a boronating agent.
Claim 16
Dependent Claim
17 words
A lubricating oil composition of claim 14 wherein said boronating agent is a lower alkyl borate ester.
Claim 17
Dependent Claim
14 words
A lubricating oil composition of claim 14 wherein said boronating agent is boric acid.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-19 | 1985-04-20 | 1985-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-19 | 1989-04-20 | 1989-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-19 | 1993-04-20 | 1993-10-20 | $7700.00 | Window Closed / Lapsed |