US4172855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant
Assignee: BP Corp North America Inc
•
Filing: 1978-04-10
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Granted: 1979-10-30
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Expires: 1998-04-10
Abstract
Abstract A process for making a low viscosity, low volatility α-olefin oligomer suitable for use as a functional fluid or lubricating oil comprising dimerizing a C 6-12 α-olefin, reacting the resultant dimer with a C 6-18 α-olefin in the presence of a Friedel-Crafts catalyst, distilling out volatile components and hydrogenating the residual product.
Inventors
- 👤 Ronald L. Shubkin
- 👤 Ellis B. Rifkin
- 👤 Martin E. Gluckstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:31
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/22; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/20; C07C2/26; C07C2/30; C10; C10M; C10M107/00; C10M107/02; C10M107/10; C10M143/00; C10M143/08; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1213; C07C2531/00; C07C2531/02; C07C2531/04; C07C2531/12; C07C2531/14; C10M2203/00; C10M2203/06; C10M2205/00; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/062; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
150 words
A process for making an α-olefin oligomer in a two-stage reaction, said process comprising contacting a first α-olefin containing about 6-12 carbon atoms or mixture thereof with an alkyl aluminum olefin dimerization catalyst to obtain an initial product consisting mainly of dimers of said first α-olefin, and then reacting said initial product with a second α-olefin containing about 6-18 carbon atoms or mixture thereof in the presence of a Friedel-Crafts catalyst to form an oligomer consisting mainly of a graft of said second α-olefin to said dimers, said first and said second α-olefins being selected such that two times the average carbon number of said first α-olefin or mixture thereof plus the average carbon number of said second α-olefin or mixture thereof is about 26-36, removing said Friedel-Crafts catalyst, distilling out oligomer containing less than about 26 carbon atoms and hydrogenating the remaining oligomer to obtain a hydrogenated olefin oligomer.
Claim 2
Dependent Claim
150 words
A process for making an α-olefin oligomer in a two-stage reaction, said process comprising contacting a first α-olefin containing about 6-12 carbon atoms or mixture thereof with an alkyl aluminum olefin dimerization catalyst to obtain an initial product consisting mainly of dimers of said first α-olefin, and then reacting said initial product with a second α-olefin containing about 6-18 carbon atoms or mixture thereof in the presence of a Friedel-Crafts catalyst to form an oligomer consisting mainly of a graft of said second α-olefin to said dimers, said first and said second α-olefins being selected such that two times the average carbon number of said first α-olefin or mixture thereof plus the average carbon number of said second α-olefin or mixture thereof is about 26-36, removing said Friedel-Crafts catalyst, distilling out oligomer containing less than about 26 carbon atoms and hydrogenating the remaining oligomer to obtain a hydrogenated olefin oligomer.
Claim 3
Dependent Claim
23 words
A process of claim 1 wherein said first α-olefin contains about 6-10 carbon atoms and said second α-olefin contains about 10-18 carbon atoms.
Claim 4
Dependent Claim
42 words
A process of claim 2 wherein said Friedel-Crafts catalyst is boron trifluoride in combination with a promoter selected from the group consisting of water, alkanol, alkylene glycol, polyalkylene glycol, dialkyl ether, fatty acid, fatty acid alkyl ester, aliphatic ketone and cycloaliphatic ketone.
Claim 5
Dependent Claim
10 words
A process of claim 3 wherein said promoter is water.
Claim 6
Dependent Claim
13 words
A process of claim 3 wherein said promoter is a C 1-20 alkanol.
Claim 7
Dependent Claim
20 words
A process of claim 3 wherein said promoter is a C 1-20 alkyl ester of a C 1-20 fatty acid.
Claim 8
Dependent Claim
13 words
A process of claim 2 wherein said dimerization catalyst is a trihydrocarbyl aluminum.
Claim 9
Dependent Claim
15 words
A process of claim 7 wherein said trihydrocarbyl aluminum is a tri-C 1-20 alkyl aluminum.
Claim 10
Dependent Claim
17 words
A process of claim 8 wherein said Friedel-Crafts catalyst is boron trifluoride in combination with a promoter.
Claim 11
Dependent Claim
34 words
A process of claim 9 wherein said promoter is selected from the group consisting of water, alkanol, alkylene glycol, polyalkylene glycol, dialkyl ether, fatty acid, fatty acid alkyl ester, aliphatic ketone and cycloaliphatic ketone.
Claim 12
Dependent Claim
10 words
A process of claim 10 wherein said promoter is water.
Claim 13
Dependent Claim
13 words
A process of claim 10 wherein said promoter is a C 1-20 alkanol.
Claim 14
Dependent Claim
20 words
A process of claim 10 wherein said promoter is a C 1-20 alkyl ester of a C 1-20 fatty acid.
Claim 15
Dependent Claim
26 words
A process of claim 11, 12 or 13 wherein said first α-olefin is a C 6-8 α-olefin and said second α-olefin is a C 12-18 α-olefin.
Claim 16
Dependent Claim
20 words
A process of claim 11, 12 or 13 wherein said first α-olefin is 1-octene and said second α-olefin is 1-tetradecene.
Claim 17
Dependent Claim
26 words
A process of claim 11, 12 or 13 wherein said trialkyl aluminum is tri-n-butyl aluminum, said first α-olefin is 1-octene and said second α-olefin is 1-tetradecene.
Claim 18
Dependent Claim
157 words
An α-olefin oligomer having a low viscosity and low volatility made by the process comprising contacting a first α-olefin containing about 6-12 carbon atoms or mixture thereof with an olefin dimerization catalyst to obtain an initial product consisting mainly of dimers of said first α-olefin, removing any remaining first α-olefin from said initial product and then reacting said initial product with a second α-olefin containing about 6-18 carbon atoms or mixture thereof in the presence of a Friedel-Crafts catalyst to form an oligomer consisting mainly of a graft of said second α-olefin to said dimers, said first and said second α-olefins being selected such that twice the average carbon number of said first α-olefin or mixture thereof plus the average carbon number of said second α-olefin or mixture thereof is about 26-36, removing said Friedel-Crafts catalyst, distilling out oligomer containing less than about 26 carbon atoms and hydrogenating the remaining oligomer to obtain a hydrogenated olefin oligomer.
Claim 19
Dependent Claim
157 words
An α-olefin oligomer having a low viscosity and low volatility made by the process comprising contacting a first α-olefin containing about 6-12 carbon atoms or mixture thereof with an olefin dimerization catalyst to obtain an initial product consisting mainly of dimers of said first α-olefin, removing any remaining first α-olefin from said initial product and then reacting said initial product with a second α-olefin containing about 6-18 carbon atoms or mixture thereof in the presence of a Friedel-Crafts catalyst to form an oligomer consisting mainly of a graft of said second α-olefin to said dimers, said first and said second α-olefins being selected such that twice the average carbon number of said first α-olefin or mixture thereof plus the average carbon number of said second α-olefin or mixture thereof is about 26-36, removing said Friedel-Crafts catalyst, distilling out oligomer containing less than about 26 carbon atoms and hydrogenating the remaining oligomer to obtain a hydrogenated olefin oligomer.
Claim 20
Dependent Claim
23 words
An oligomer of claim 17 wherein said first α-olefin contains about 6-10 carbon atoms and said second α-olefin contains about 10-18 carbon atoms.
Claim 21
Dependent Claim
42 words
An oligomer of claim 18 wherein said Friedel-Crafts catalyst is boron trifluoride in combination with a promoter selected from the group consisting of water, alkanol, alkylene glycol, polyalkylene glycol, dialkyl ether, fatty acid, fatty acid alkyl ester, aliphatic ketone and cycloaliphatic ketone.
Claim 22
Dependent Claim
10 words
An oligomer of claim 19 wherein said promoter is water.
Claim 23
Dependent Claim
13 words
An oligomer of claim 19 wherein said promoter is a C 1-20 alkanol.
Claim 24
Dependent Claim
15 words
An oligomer of claim 18 wherein said dimerization catalyst is a tri-C 1-20 alkyl aluminum.
Claim 25
Dependent Claim
18 words
An oligomer of claim 22 wherein said Friedel-Crafts catalyst is boron trifluoride in combination with a water promoter.
Claim 26
Dependent Claim
20 words
An oligomer of claim 22 wherein said Friedel-Crafts catalyst is boron trifluoride in combination with a C 1-20 alkanol promoter.
Claim 27
Dependent Claim
37 words
An oligomer of claim 23 or 24 wherein said first α-olefin is selected from the group consisting of 1-hexene and 1-octene and said second α-olefin is selected from the group consisting of 1-dodecene, 1-tetradecene, 1-hexadecene and 1-octadecene.
Claim 28
Dependent Claim
19 words
An oligomer of claim 23 or 24 wherein said first α-olefin is 1-octene and said second α-olefin is 1-tetradecene.
References Cited (Backward Citations)
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US3957664A
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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) | 1982-10-29 | 1983-04-30 | 1983-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-29 | 1987-04-30 | 1987-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-29 | 1991-04-30 | 1991-10-30 | $7700.00 | Window Closed / Lapsed |