US4341684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions and method for improving the properties of liquid media
Assignee: General Electric Co
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Filing: 1979-11-07
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Granted: 1982-07-27
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Expires: 1999-11-07
Abstract
Abstract Many liquids have properties improved, and fluid flow friction losses are reduced in flowing fluids by adding thereby a small, effective amount of composition comprising (i) a continuous phase of a liquid which is normally miscible with said fluid, and, dispersed therein, (ii) a stable discontinuous phase predominantly comprising fine particles of a high molecular weight polymer which is ultimately miscible with said fluid. In preferred features the compositions include a surface active agent. In other preferred features, friction is reduced in flowing hydrocarbons.
Inventors
- 👤 Karl W. Krantz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:14
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/08; C09; C09K; C09K3/00; C10L1/00; C10L1/10; C10L1/14; C10L1/143; F; F17; F17D; F17D1/00; F17D1/08; F17D1/16; C10L1/18; C10L1/182; C10L1/1822; C10L1/1824; C10L1/19; C10L1/192; C10L1/198; C10L1/1985; C10L1/28; C10L1/285; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0391
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
104 words
A composition for reducing the fluid flow friction loss in the transmission of a hydrocarbon fluid through a pipeline, said composition being an oil-in-oil emulsion comprising: (i) a continuous phase of a liquid which is different from, but normally miscible with said hydrocarbon fluid, and, dispersed therein, (iii) a stable discontinuous phase predominantly comprising fine particles of a high molecular weight polyhydrocarbon or polydiorganosiloxane having a molecular weight of at least 500,000 which is ultimately miscible with said hydrocarbon fluid, (iii) a surface active agent which is preferentially compatible with continuous phase(i) so as to favor the maintenance of (i) as the continuous phase.
Claim 2
Dependent Claim
104 words
A composition for reducing the fluid flow friction loss in the transmission of a hydrocarbon fluid through a pipeline, said composition being an oil-in-oil emulsion comprising: (i) a continuous phase of a liquid which is different from, but normally miscible with said hydrocarbon fluid, and, dispersed therein, (iii) a stable discontinuous phase predominantly comprising fine particles of a high molecular weight polyhydrocarbon or polydiorganosiloxane having a molecular weight of at least 500,000 which is ultimately miscible with said hydrocarbon fluid, (iii) a surface active agent which is preferentially compatible with continuous phase(i) so as to favor the maintenance of (i) as the continuous phase.
Claim 3
Dependent Claim
124 words
A composition comprising: (1) a major proportion of a hydrocarbon fluid; (2) from 10 ppm to 1500 ppm, based on the hydrocarbon fluid of a high molecular weight fluid flow friction reducing polymer which is a polyhydrocarbon or polydiorganosiloxane having a molecular weight of at least 500,000 that is miscible with said hydrocarbon fluid; (3) a minor porportion of a liquid which is different from, but normally miscible with said hydrocarbon fluid and immiscible with said polymer; and (4) a surface active agent which is capable of assisting in the maintenance of a high molecular weight fluid flow friction reducing polymer (2) and polymer immiscible liquid (3) in the form of an oil-in-oil emulsion in which polymer immiscible liquid (3) forms the continuous phase.
Claim 4
Dependent Claim
124 words
A composition comprising: (1) a major proportion of a hydrocarbon fluid; (2) from 10 ppm to 1500 ppm, based on the hydrocarbon fluid of a high molecular weight fluid flow friction reducing polymer which is a polyhydrocarbon or polydiorganosiloxane having a molecular weight of at least 500,000 that is miscible with said hydrocarbon fluid; (3) a minor porportion of a liquid which is different from, but normally miscible with said hydrocarbon fluid and immiscible with said polymer; and (4) a surface active agent which is capable of assisting in the maintenance of a high molecular weight fluid flow friction reducing polymer (2) and polymer immiscible liquid (3) in the form of an oil-in-oil emulsion in which polymer immiscible liquid (3) forms the continuous phase.
Claim 5
Dependent Claim
20 words
A composition as defined in claim 1 wherein the hydrocarbon fluid is a crude oil or a refined petroleum product.
Claim 6
Dependent Claim
36 words
A composition as defined in claim 3 wherein said hydrocarbon fluid is a refined petroleum product selected from gasoline, kerosene, distillate fuel oil, jet fuel oil, liquified petroleum gas, pentane, cyclohexane, isooctane, toluene, and mixtures thereof.
Claim 7
Dependent Claim
19 words
A composition as defined in claim 1 wherein said high molecular weight polymer is a polyhydrocarbon or a polydiorganosiloxane.
Claim 8
Dependent Claim
26 words
A composition as defined in claim 4 wherein said high molecular weight polymer is a polyhydrocarbon having a viscosity average molecular weight of at least 500,000.
Claim 9
Dependent Claim
26 words
A composition as defined in claim 2 wherein said high molecular weight polymer is a polydiorganosiloxane having a viscosity average molecular weight of at least 500,000.
Claim 10
Dependent Claim
94 words
A composition as defined in claim 6 wherein said liquid which is normally miscible with said hydrocarbon fluid is selected from a monohydric alcohol of from 1 to 16 carbon atoms; a dihydric alcohol of from 7 to 16 carbon atoms, an ester of a mono or polyhydric alcohol of from 1 to 16 carbon atoms and an acid of from 6 to 30 carbon atoms; a polyoxyalkylene dialkyl ether; of a hydrocarbon solution of a second polymer of lower molecular weight and composition chemically different from that of the high molecular weight polyhydrocarbon.
Claim 11
Dependent Claim
33 words
A composition as defined in claim 7 wherein said liquid which is normally miscible with said hydrocarbon fluid is a liquid hydrocarbon oil of viscosity average molecular weight of less than about 2000.
Claim 12
Dependent Claim
60 words
A composition as defined in claim 1 wherein said high molecular weight polymer is a polydiorganosiloxane having a viscosity average molecular weight of at least 500,000; the liquid which is normally miscible with said hydrocarbon fluid is a liquid hydrocarbon oil of viscosity average molecular weight of less than about 2000; and said surface active agent is a poly(methylalkyl)siloxane fluid.
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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) | 1985-07-26 | 1986-01-25 | 1986-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-26 | 1990-01-25 | 1990-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-26 | 1994-01-25 | 1994-07-27 | $7700.00 | Window Closed / Lapsed |