US3762888A
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Fuel oil composition containing oil soluble pour depressant polymer and auxiliary flow improving compound
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1970-11-16
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Granted: 1973-10-02
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Expires: 1990-11-16
Abstract
Abstract Cold flow properties of fuel oils are improved by addition thereto of certain oil-soluble, pour point depressant polymers together with non-nitrogen containing, oil-soluble, auxiliary, flow improving compounds.
Inventors
- 👤 A Kober
- 👤 A Rossi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:02
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/143; C10L1/16; C10L1/1608; C10L1/1616; C10L1/1625; C10L1/1633; C10L1/18; C10L1/185; C10L1/1857; C10L1/188; C10L1/19; C10L1/192; C10L1/195; C10L1/198; C10L1/1985; C10L1/20; C10L1/201; C10L1/202; C10L1/206
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
36 words
copolymer comprising 3-40 molar proportions of ethylene and a molar proportion of a copolymerizable comonomer selected from the group consisting of: i. a vinyl ester of a C1-17 monocarboxylic acid, and ii. an ethylenically unsaturated ester
Claim 2
Dependent Claim
9 words
halogenated hydrocarbons having 1 to 4 halogens per molecule,
Claim 3
Dependent Claim
34 words
A fuel oil composition according to claim 1, wherein said first component is chlorinated polyethylene containing about 10 to 30 percent chlorine and having a Mn in the range of about 1500 to 15,000.
Claim 4
Dependent Claim
36 words
copolymer comprising 3-40 molar proportions of ethylene and a molar proportion of a copolymerizable comonomer selected from the group consisting of: i. a vinyl ester of a C1-17 monocarboxylic acid, and ii. an ethylenically unsaturated ester
Claim 5
Dependent Claim
9 words
halogenated hydrocarbons having 1 to 4 halogens per molecule,
Claim 6
Dependent Claim
10 words
acids and their anhydrides having 1 to 3 carboxylIc groups,
Claim 7
Dependent Claim
24 words
A fuel oil composition according to claim 1, wherein said first component is said copolymer comprising ethylene and vinyl ester of said monocarboxylic acid.
Claim 8
Dependent Claim
10 words
acids and their anhydrides having 1 to 3 carboxylic groups,
Claim 9
Dependent Claim
27 words
esters of C2 to C26 fatty acids with C1 to C30 alcohols having 1 to 6 hydroxy groups wherein at least one hydroxy group has been esterified,
Claim 10
Dependent Claim
23 words
A fuel oil composition according to claim 3, wherein said vinyl ester is a vinyl ester of a C2 to C9 monocarboxylic acid.
Claim 11
Dependent Claim
27 words
esters of C2 to C26 fatty acids with C1 to C30 alcohols having 1 to 6 hydroxy groups wherein at least one hydroxy group has been esterified,
Claim 12
Dependent Claim
30 words
polyethers containing 1 to 30 alkoxy groups of two to 26 carbon atoms attached to said acids of (3) above or to said C1 to C30 alcohol of (4) above,
Claim 13
Dependent Claim
14 words
A fuel oil composition according to claim 4, wherein said ester is vinyl acetate.
Claim 14
Dependent Claim
30 words
polyethers containing 1 to 30 alkoxy groups of two to 26 carbon atoms attached to said acids of (3) above or to said C1 to C30 alcohol of (4) above,
Claim 15
Dependent Claim
10 words
unsaturated aliphatic hydrocarbons containing 1 to 4 ethylenically unsaturated bonds,
Claim 16
Dependent Claim
22 words
A fuel oil composition according to claim 1, wherein said first component is said copolymer of ethylene and said ethylenically unsaturated ester.
Claim 17
Dependent Claim
10 words
unsaturated aliphatic hydrocarbons containing 1 to 4 ethylenically unsaturated bonds,
Claim 18
Dependent Claim
34 words
derivatized compounds of (6) above wherein a further reaction at one or more of said unsaturated bonds is carried out by: a. acylation with 1 to 4 moles of acyl halide of the formula:
Claim 19
Dependent Claim
30 words
A fuel oil composition according to claim 6, wherein said first coMponent is said copolymer comprising ethylene and alkyl acrylate wherein said alkyl group contains two to eight carbon atoms.
Claim 20
Dependent Claim
34 words
derivatized compounds of (6) above wherein a further reaction at one or more of said unsaturated bonds is carried out by: a. acylation with 1 to 4 moles of acyl halide of the formula:
Claim 21
Dependent Claim
31 words
A fuel oil composition according to claim 7, wherein said ester is a copolymer comprising ethylene and isobutyl acrylate having a molecular weight in the range of about 1,500 to 15,000.
Claim 22
Dependent Claim
12 words
saturated C10 to C26 alkanol esters of said acids of (3), and
Claim 23
Dependent Claim
12 words
saturated C10 to C26 alkanol esters of said acids of (3), and
Claim 24
Dependent Claim
7 words
polyethers of the alkoxy materials of (5).
Claim 25
Dependent Claim
30 words
polyethers of the alkoxy materials of (5), wherein said mixture contains about 4 to 97 percent of said first component with the remainder of said mixture being said second component.
Claim 26
Dependent Claim
33 words
A fuel oil composition according to claim 1, wherein said second component is an alkyl aromatic having from 1 to 4 alkyl groups, each in the C1 to C30 range, per aromatic nucleus.
Claim 27
Dependent Claim
23 words
A fuel oil composition according to claim 1, wherein said second component is a halogenated hydrocarbon having 1 to 4 halogens per molecule.
Claim 28
Dependent Claim
23 words
A fuel oil composition according to claim 1, wherein said second component is an acid or anhydride having 1 to 3 carboxylic groups.
Claim 29
Dependent Claim
41 words
A fuel oil composition according to claim 1, wherein said second component is an ester of C2 to C26 fatty acid with C1 to C30 alcohol having 1 to 6 hydroxy groups wherein at least one hydroxy group has been esterified.
Claim 30
Dependent Claim
14 words
A fuel oil composition according to claim 1, wherein said second component is polyether.
Claim 31
Dependent Claim
24 words
A fuel oil composition according to claim 1, wherein said second component is an unsaturated aliphatic hydrocarbon containing 1 to 4 ethylenically unsaturated bonds.
Claim 32
Dependent Claim
18 words
A fuel oil composition according to claim 1, wherein said second component is one of said derivatized compounds.
Claim 33
Dependent Claim
30 words
A fuel oil composition according to claim 1, wherein said second component is a C10 to C26 alkanol ester of an acid or anhydride having 1 to 3 carboxylic groups.
Claim 34
Dependent Claim
58 words
A fuel oil according to claim 1, wherein said first component is said polymer of 3 to 40 moles of ethylene and said copolymerizable monomer and said second component is an ester of C2 to C26 fatty acid with C1 to C30 alcohol having 1 to 6 hydroxy groups wherein at least one hydroxy group has been esterified.
Claim 35
Dependent Claim
41 words
A fuel oil according to claim 17, wherein said copolymerizable monomer is either vinyl acetate or isobutyl acrylate, and said second component is alkoxylated with 1 to 30 alkoxy groups selected from the group consisting of ethylene oxide and propylene oxide.
Claim 36
Dependent Claim
24 words
A fuel oil according to claim 18, wherein said second component is a sorbitan ester of stearic or palmitic acid ethoxylated with ethylene oxide.
Claim 37
Dependent Claim
51 words
A composition adapted to be used as a flow improver comprising 0-100 parts of inert diluent-solvent and 10-70 parts of a mixture of: a. as a first component, an oil-solible, pour point depressant polymer having a molecular weight Mn in the range of about 500-50,000 selected from the group consisting of:
Claim 38
Dependent Claim
57 words
A composition according to claim 20, wherein said first component is said polymer of 3 to 40 moles of ethylene and said copolymerizable monomer and said second component is an ester of C2 to C26 fatty acid with C1 to C30 alcohol having 1 to 6 hydroxy groups wherein at least one hydroxy group has been esterified.
Claim 39
Dependent Claim
40 words
A composition according to claim 21, wherein said copolymerizable monomer is either vinyl acetate or isobutyl acrylate, and said second component is alkoxylated with 1 to 30 alkoxy groups selected from the group consisting of ethylene oxide and propylene oxide.
Claim 40
Dependent Claim
23 words
A composition according to claim 22, wherein said second component is a sorbitan ester of stearic or palmitic acid ethoxylated with ethylene oxide.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |