US4163645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic liquids containing anti-static agents which are copolymers of alpha-olefins and maleic anhydrides reacted with amines
Assignee: Baker Petrolite LLC
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Filing: 1978-01-23
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Granted: 1979-08-07
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Expires: 1998-01-23
Abstract
Abstract This invention relates to copolymers of alpha-olefins and maleic anhydride reacted with amines in the presence of Lewis acids, preferably BF 3 or a complex thereof; and to the use of these products as anti-static agents in organic liquids, preferably in hydrocarbons. The use of Lewis acid produces a unique reaction product which is superior as to fluidity and/or anti-static properties as compared to the corresponding product produced without Lewis acid. In addition, the use of Lewis acid promotes the rate of reaction thus reducing reaction time.
Inventors
- 👤 William J. Cheng
- 👤 David B. Guthrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:37
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C11D3/3769; C11D3/3773; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C09; C09D; C09D7/00; C09D7/20; C09G; C09G1/00; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222; C10L1/224; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/19
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
61 words
An organic liquid containing a minor amount, sufficient to impart anti-static properties, of the product formed by reacting a copolymer of an alpha-olefin and maleic anhydride with a primary amine, a secondary amine or mixtures thereof in the presence of a Lewis acid, the molar ratio of amine to maleic anhydride in the copolymer being from about 0.25 to about 3.
Claim 2
Dependent Claim
61 words
An organic liquid containing a minor amount, sufficient to impart anti-static properties, of the product formed by reacting a copolymer of an alpha-olefin and maleic anhydride with a primary amine, a secondary amine or mixtures thereof in the presence of a Lewis acid, the molar ratio of amine to maleic anhydride in the copolymer being from about 0.25 to about 3.
Claim 3
Dependent Claim
25 words
The organic liquid of claim 1 where the amine is a primary amine, the amino group being attached to a secondary or tertiary carbon atom.
Claim 4
Dependent Claim
17 words
The organic liquid of claim 2 where the amine group is attached to a tertiary carbon atom.
Claim 5
Dependent Claim
17 words
The organic liquid of claim 3 where the Lewis acid is BF 3 or a complex thereof.
Claim 6
Dependent Claim
21 words
The organic liquid of claim 4 where the alpha-olefin is of the formula ##STR6## where R has 6- 20 carbon atoms.
Claim 7
Dependent Claim
11 words
The organic liquid of claim 1 which is a hydrocarbon fuel.
Claim 8
Dependent Claim
11 words
The organic liquid of claim 2 which is a hydrocarbon fuel.
Claim 9
Dependent Claim
11 words
The organic liquid of claim 3 which is a hydrocarbon fuel.
Claim 10
Dependent Claim
11 words
The organic liquid of claim 4 which is a hydrocarbon fuel.
Claim 11
Dependent Claim
11 words
The organic liquid of claim 5 which is a hydrocarbon fuel.
Claim 12
Dependent Claim
14 words
The organic liquid of claim 1 which is a textile solvent or cleaning fluid.
Claim 13
Dependent Claim
14 words
The organic liquid of claim 2 which is a textile solvent or cleaning fluid.
Claim 14
Dependent Claim
14 words
The organic liquid of claim 3 which is a textile solvent or cleaning fluid.
Claim 15
Dependent Claim
14 words
The organic liquid of claim 4 which is a textile solvent or cleaning fluid.
Claim 16
Dependent Claim
14 words
The organic liquid of claim 5 which is a textile solvent or cleaning fluid.
References Cited (Backward Citations)
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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) | 1982-08-06 | 1983-02-05 | 1983-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-06 | 1987-02-05 | 1987-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-06 | 1991-02-05 | 1991-08-07 | $7700.00 | Window Closed / Lapsed |