CA2509220A1 - Continuous neat polymerization and ambient grinding methods of polyolefin drag reducing agents - Google Patents
Continuous neat polymerization and ambient grinding methods of polyolefin drag reducing agents Download PDFInfo
- Publication number
- CA2509220A1 CA2509220A1 CA 2509220 CA2509220A CA2509220A1 CA 2509220 A1 CA2509220 A1 CA 2509220A1 CA 2509220 CA2509220 CA 2509220 CA 2509220 A CA2509220 A CA 2509220A CA 2509220 A1 CA2509220 A1 CA 2509220A1
- Authority
- CA
- Canada
- Prior art keywords
- grinding
- fluid
- polymer
- temporary container
- drag reducing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000227 grinding Methods 0.000 title claims abstract 25
- 238000000034 method Methods 0.000 title claims abstract 20
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract 13
- 238000006116 polymerization reaction Methods 0.000 title claims abstract 3
- 229920000098 polyolefin Polymers 0.000 title 1
- 239000012530 fluid Substances 0.000 claims abstract 25
- 229920000642 polymer Polymers 0.000 claims abstract 25
- 239000000203 mixture Substances 0.000 claims abstract 8
- 239000000178 monomer Substances 0.000 claims abstract 8
- 239000012815 thermoplastic material Substances 0.000 claims abstract 6
- 239000007787 solid Substances 0.000 claims abstract 5
- 239000003054 catalyst Substances 0.000 claims abstract 3
- 238000009751 slip forming Methods 0.000 claims abstract 2
- 239000002002 slurry Substances 0.000 claims 9
- 239000004215 Carbon black (E152) Substances 0.000 claims 5
- 229930195733 hydrocarbon Natural products 0.000 claims 5
- 150000002430 hydrocarbons Chemical class 0.000 claims 5
- 238000002844 melting Methods 0.000 claims 4
- 230000008018 melting Effects 0.000 claims 4
- 235000019271 petrolatum Nutrition 0.000 claims 4
- 238000007789 sealing Methods 0.000 claims 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 2
- 239000004264 Petrolatum Substances 0.000 claims 2
- 150000001298 alcohols Chemical class 0.000 claims 2
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 claims 2
- 229920001577 copolymer Polymers 0.000 claims 2
- 239000012188 paraffin wax Substances 0.000 claims 2
- 235000019809 paraffin wax Nutrition 0.000 claims 2
- 239000002245 particle Substances 0.000 claims 2
- 229940066842 petrolatum Drugs 0.000 claims 2
- 230000009477 glass transition Effects 0.000 claims 1
- 229920001684 low density polyethylene Polymers 0.000 claims 1
- 239000004702 low-density polyethylene Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000000737 periodic effect Effects 0.000 claims 1
- 229920013639 polyalphaolefin Polymers 0.000 claims 1
- 239000004711 α-olefin Substances 0.000 claims 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- -1 polyethylene Polymers 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 238000010298 pulverizing process Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/002—Scale prevention in a polymerisation reactor or its auxiliary parts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0025—Crosslinking or vulcanising agents; including accelerators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
- Y10T137/0391—Affecting flow by the addition of material or energy
Abstract
A process for continuously producing a polymer drag reducing agent (DRA) is described. The process concerns mixing a monomer and a catalyst in at least one continuously stirred tank reactor (CSTR) to form a mixture. The mixture is continuously injected into a volume continuously formed by a thermoplastic material, such as polyethylene. The thermoplastic material is periodically sealed off to form a temporary container or bag. The monomer is permitted to polymerize in the temporary container to form polymer. In one non-limiting embodiment, the polymerization in the bag takes place within an inert, circulating fluid that accelerates heat transfer. The polymer and the temporary container are then ground together, preferably at non-cryogenic temperatures, to produce a particulate polymer drag reducing agent. In one preferred, non-limiting embodiment, the grinding or pulverizing occurs in the presence of at least one solid organic grinding aid. Finally, the particulate polymer drag reducing agent may be combined with a dispersing fluid.
Claims (26)
1. A method for producing a polymer drag reducing agent, comprising:
mixing a monomer and a catalyst in at least one continuously stirred tank reactor (CSTR) to form a mixture;
continuously injecting the mixture into a volume continuously formed by a thermoplastic material;
periodically sealing off the thermoplastic material into a temporary container;
permitting the monomer to polymerize in the temporary container to form polymer; and grinding the polymer and the temporary container to produce particulate polymer drag reducing agent.
mixing a monomer and a catalyst in at least one continuously stirred tank reactor (CSTR) to form a mixture;
continuously injecting the mixture into a volume continuously formed by a thermoplastic material;
periodically sealing off the thermoplastic material into a temporary container;
permitting the monomer to polymerize in the temporary container to form polymer; and grinding the polymer and the temporary container to produce particulate polymer drag reducing agent.
2. The method of claim 1 where in the continuous injecting, the thermoplastic material is low density polyethylene.
3. The method of claim 1 or 2 where in the periodic sealing off of the thermoplastic material, the point at which the sealing occurs to form the temporary container is selected from the group consisting of (1) the mixture reaching a predetermined viscosity, (2) the polymer reaching a predetermined molecular weight, and (3) a combination of (1) and (2).
4. The method of any of the above claims where in permitting the monomer to polymerize in the temporary container, the containers are placed in an inert environment.
5. The method of claim 4 where in the permitting the monomer to polymerize in the temporary container, the inert environment is a bath of circulated fluid that removes heat of polymerization from the polymer.
6. The method of any of the above claims where in grinding the polymer and the temporary container, the grinding is conducted at a temperature above the glass transition temperature of the polymer.
7. The method of any of the above claims where in grinding the polymer and the temporary container, the grinding is conducted in the presence of a grinding aid.
8. The method of claim 7 where in grinding the polymer and the temporary container, the grinding aid is a solid organic grinding aid having a size between 1 and 50 microns.
9. The method of claim 7 or 8 where in grinding the polymer and the temporary container, the grinding aid is selected from the group consisting of ethene/butene copolymer, paraffin waxes, solid alcohols, and mixtures thereof.
10. The method of claim 7, 8 or 9 where in grinding the polymer and the temporary container, a portion of the ground temporary container and a portion of excess grinding aid, if any, are removed from the ground polymer.
11. The method of any of the above claims further comprising combining the particulate polymer drag reducing agent with a dispersing fluid to form a slurry product.
12. The method of any of the above claims where in combining the particulate polymer drag reducing agent with a dispersing fluid, the dispersing fluid is a mixture of at least two hydrocarbon fluids comprising a first fluid having a melting point above a melting point of a second fluid.
13. The method of any of the above claims where in the dispersing fluid, the first fluid ranges from 30 wt % to 35 wt % and the second fluid ranges from 40 wt % to 45 wt % based on the total volume of the dispersing fluid.
14. The method of claim 12 where the first fluid is petrolatum.
15. The method of any of the above claims where in mixing the monomer and the catalyst, the monomer is an alpha-olefin.
16. The method of any of the above claims where in the grinding, the particulate polymer drag reducing agent has an average particle size of equal to or less than 600 microns.
17. The method of any of the above claims where in the grinding, the grinding is conducted in the absence of cryogenic temperatures.
18. The method of any of the above claims where in the grinding, the grinding is conducted at ambient temperatures.
19. A slurry of particulate polymer drag reducing agent comprising:
a particulate polymer drag reducing agent; and a dispersing fluid, where the dispersing fluid comprises:
a first hydrocarbon fluid; and a second hydrocarbon fluid, where the first hydrocarbon fluid has a melting point above the melting point of second hydrocarbon fluid.
a particulate polymer drag reducing agent; and a dispersing fluid, where the dispersing fluid comprises:
a first hydrocarbon fluid; and a second hydrocarbon fluid, where the first hydrocarbon fluid has a melting point above the melting point of second hydrocarbon fluid.
20. The slurry of claim 19 where in the dispersing fluid, the first fluid ranges from 30 wt % to 35 wt % and the second fluid ranges from 40 wt % to 45 wt %
based on the total volume of the dispersing fluid.
based on the total volume of the dispersing fluid.
21. The slurry of claim 19 or 20 where the first fluid is petrolatum.
22. The slurry of claim 19, 20 or 21 where the particulate polymer drag reducing agent is polyalpha-olefin.
23. The slurry of any one of claims 19-22 where the particulate polymer drag reducing agent has an average particle size of equal to or less than 600 microns.
24. The slurry of any one of claims 19-23 further comprising a grinding aid.
25. The slurry of claim 24 where the grinding aid is a solid organic grinding aid having a size between 1 and 50 microns.
26. The slurry of claim 24 or 25 where the grinding aid is selected from the group consisting of ethene/butene copolymer, paraffin waxes, solid alcohols, and mixtures thereof.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/321,762 US6649670B1 (en) | 2002-12-17 | 2002-12-17 | Continuous neat polymerization and ambient grinding methods of polyolefin drag reducing agents |
| US10/321,762 | 2002-12-17 | ||
| PCT/US2003/034935 WO2004060926A1 (en) | 2002-12-17 | 2003-11-03 | Continuous neat polymerization and ambient grinding methods of polyolefin drag reducing agents |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2509220A1 true CA2509220A1 (en) | 2004-07-22 |
| CA2509220C CA2509220C (en) | 2010-09-14 |
Family
ID=29420260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2509220 Expired - Lifetime CA2509220C (en) | 2002-12-17 | 2003-11-03 | Continuous neat polymerization and ambient grinding methods of polyolefin drag reducing agents |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US6649670B1 (en) |
| EP (1) | EP1578804B1 (en) |
| AU (1) | AU2003286863A1 (en) |
| CA (1) | CA2509220C (en) |
| MX (1) | MXPA05006393A (en) |
| NO (1) | NO332983B1 (en) |
| WO (1) | WO2004060926A1 (en) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6946500B2 (en) * | 2002-12-17 | 2005-09-20 | Baker Hughes Incorporated | Non-cryogenic process for grinding polyolefin drag reducing agents |
| US6894088B2 (en) * | 2003-03-24 | 2005-05-17 | Baker Hughes Incorporated | Process for homogenizing polyolefin drag reducing agents |
| US7323529B2 (en) * | 2003-11-26 | 2008-01-29 | Pp6 Industries Ohio, Inc. | Method of making copolymers containing olefinic type monomers |
| US20050255253A1 (en) * | 2004-05-13 | 2005-11-17 | White John M | Apparatus and methods for curing ink on a substrate using an electron beam |
| US7863362B2 (en) * | 2004-09-14 | 2011-01-04 | Baker Hughes Incorporated | Density-matched polymer slurries |
| EP1829910B1 (en) * | 2004-12-24 | 2011-11-30 | Mitsubishi Gas Chemical Company, Inc. | Low water-absorptive polyimide resin and method for producing same |
| WO2006132995A2 (en) * | 2005-06-07 | 2006-12-14 | Baker Hughes Incorporated | Particle size, percent drag efficiency and molecular weight control of bulk polymer polymerized polyalphaolefins using high shear material processors |
| CN101180354A (en) * | 2005-06-14 | 2008-05-14 | 贝克休斯公司 | Combination of polymer slurry types for optimum pipeline drag reduction |
| CN101484556B (en) * | 2005-06-14 | 2013-07-03 | 贝克休斯公司 | Bi-or multi-modal particle size distribution to improve drag reduction polymer dissolution |
| US20080064785A1 (en) * | 2005-06-14 | 2008-03-13 | Baker Hughes Incorporated | Bi- or Multi-Modal Particle Size Distribution To Improve Drag Reduction Polymer Dissolution |
| US7271205B2 (en) * | 2005-09-20 | 2007-09-18 | Baker Hughes Incorporated | Non-cryogenic process for granulating polymer drag reducing agents |
| US7256224B2 (en) * | 2005-09-21 | 2007-08-14 | Baker Hughes Incorporated | Stabilized polymer drag reducing agent slurries |
| US7388046B2 (en) * | 2006-04-19 | 2008-06-17 | Baker Hughes Incorporated | Self-dispersing waxes as polymer suspension aids |
| US20080287568A1 (en) * | 2007-05-14 | 2008-11-20 | Baker Hughes Incorporated | Polyolefin Drag Reducing Agents Produced by Non-Cryogenic Grinding |
| US7888407B2 (en) * | 2007-10-26 | 2011-02-15 | Conocophillips Company | Disperse non-polyalphaolefin drag reducing polymers |
| US7842738B2 (en) * | 2007-10-26 | 2010-11-30 | Conocophillips Company | High polymer content hybrid drag reducers |
| RU2481357C1 (en) * | 2011-09-30 | 2013-05-10 | Открытое акционерное общество "Акционерная компания по транспорту нефти "Транснефть" (ОАО "АК "Транснефть") | Method of producing suspension-type anti-turbulence additive for reducing hydrodynamic resistance of hydrocarbon liquids |
| CA2906958A1 (en) * | 2013-03-15 | 2014-09-18 | Kemira Oyj | Friction reducing polymers |
| RU2648079C1 (en) | 2017-05-24 | 2018-03-22 | Общество с ограниченной ответственностью "МИРРИКО" | Method for obtaining a reagent to reduce the hydrodynamic resistance of a turbulent flow of liquid hydrocarbons in pipelines |
| CA3103082C (en) | 2018-06-18 | 2022-04-19 | Baker Hughes Holdings Llc | Methods of manufacturing polyolefin drag reducing agents |
| WO2019245874A1 (en) | 2018-06-20 | 2019-12-26 | Baker Hughes, A Ge Company, Llc | Free-flowing solid encapsulated drag reducing additives |
| GB201901496D0 (en) * | 2019-02-04 | 2019-03-27 | Innospec Ltd | Chemical reactions |
| GB201901503D0 (en) * | 2019-02-04 | 2019-03-27 | Innospec Ltd | Chemical reactions |
| GB201901499D0 (en) * | 2019-02-04 | 2019-03-27 | Innospec Ltd | Polymeric materials |
| GB201901494D0 (en) * | 2019-02-04 | 2019-03-27 | Innospec Ltd | Polymeric materials |
| US11199296B2 (en) * | 2019-06-14 | 2021-12-14 | Baker Hughes Oilfield Operations Llc | Drag reducing agents |
| US11814458B2 (en) * | 2020-12-18 | 2023-11-14 | Baker Hughes Oilfield Operations Llc | Drag reducing agent and process of manufacture thereof |
| US20230303733A1 (en) * | 2020-12-18 | 2023-09-28 | Baker Hughes Oilfield Operations Llc | Radical polymerization in sealed containers |
Family Cites Families (57)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA901727A (en) | 1972-05-30 | Amann Herbert | Process for continuous polymerization | |
| CA675522A (en) | 1963-12-03 | L. Jankens Austin | Comminuting elastomers | |
| US2879173A (en) | 1956-03-06 | 1959-03-24 | Du Pont | Process for preparing free-flowing pellets of polychloroprene and the resulting product |
| US3351601A (en) | 1963-05-13 | 1967-11-07 | Allied Chem | Chlorinated wax, vinyl chloride/vinyl acetate blend coated with limestone or talc and process for preparing it |
| USRE28361E (en) | 1966-02-08 | 1975-03-11 | Polymer pigmentation | |
| US3519696A (en) | 1966-12-30 | 1970-07-07 | Hoechst Ag | Process for preparing copolymers of trioxane |
| US3528841A (en) | 1967-11-15 | 1970-09-15 | Nat Distillers Chem Corp | Method for reducing tackiness of polymer pellets |
| DE1946527B2 (en) | 1969-09-13 | 1972-08-17 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | PROCESS FOR THE PREPARATION OF OXYMETHYLENE HOMO- OR OXYMETHYLENE COPOLYMERISATES |
| US3632369A (en) | 1969-12-11 | 1972-01-04 | Coaden Oil & Chemical Co | Polymer pigmentation |
| US3779969A (en) * | 1970-08-06 | 1973-12-18 | Calgon Corp | Friction reducing in flowing hydrocarbon fluids |
| US3891593A (en) | 1972-08-08 | 1975-06-24 | Shell Oil Co | Method and apparatus for dissolution of polymer in solvent |
| US3843589A (en) * | 1973-02-05 | 1974-10-22 | Union Carbide Corp | Stable pumpable slurries of ethylene oxide polymers |
| US3884252A (en) | 1973-06-20 | 1975-05-20 | Shell Oil Co | Friction reduction |
| US4016894A (en) | 1975-08-28 | 1977-04-12 | Belknap Corporation | Drag reducing composition and method |
| US4066539A (en) | 1975-11-25 | 1978-01-03 | Hitachi, Ltd. | Oil-recovering material and process for preparing and using the same |
| US4177177A (en) | 1976-03-26 | 1979-12-04 | El Aasser Mohamed S | Polymer emulsification process |
| US4147677A (en) | 1977-11-29 | 1979-04-03 | Exxon Research & Engineering Co. | Dry blending of neutralized sulfonated elastomeric powders |
| US4212312A (en) | 1978-08-28 | 1980-07-15 | Shell Oil Company | Fragmented polymers as friction reducers in pipeline transportation of products |
| US4263926A (en) | 1978-12-04 | 1981-04-28 | Shell Oil Company | Injection system for solid friction reducing polymers |
| US4340076A (en) | 1979-02-27 | 1982-07-20 | General Technology Applications, Inc. | Dissolving polymers in compatible liquids and uses thereof |
| US4436846A (en) * | 1979-11-07 | 1984-03-13 | General Electric Company | Composition and method for improving the properties of liquid media |
| US4289679A (en) | 1979-12-14 | 1981-09-15 | Conoco, Inc. | Method for producing solutions of drag reducing substances |
| US4527581A (en) | 1981-02-02 | 1985-07-09 | Atlantic Richfield Company | Compositions for and method of reducing hydrocarbon fluid friction loss in conduits |
| US4384089A (en) | 1981-10-15 | 1983-05-17 | Atlantic Richfield Company | Low temperature polymerization process |
| US4510304A (en) | 1982-09-30 | 1985-04-09 | General Technology Applications, Inc. | Polymer fractionation |
| US4499214A (en) | 1983-05-03 | 1985-02-12 | Diachem Industries, Inc. | Method of rapidly dissolving polymers in water |
| US4659334A (en) | 1984-07-10 | 1987-04-21 | Petrolite Corporation | Particulate compositions used in petroleum systems comprising encapsulated materials |
| US4588640A (en) | 1984-07-10 | 1986-05-13 | Petrolite Corporation | Particulate compositions |
| US4585244A (en) * | 1984-08-20 | 1986-04-29 | Victor Testa, Sr | Bicycle improvement |
| EP0196350B1 (en) | 1985-04-03 | 1989-11-23 | Conoco Phillips Company | Improved use of flow improvers |
| US4584244A (en) | 1985-05-28 | 1986-04-22 | Conoco Inc. | Preparation of cold flow resistant polymer powders |
| US4693321A (en) | 1985-11-18 | 1987-09-15 | Conoco Inc. | Method using encapsulated flow improvers to reduce turbulence |
| US4720397A (en) | 1985-12-12 | 1988-01-19 | General Technology Applications, Inc. | Rapid dissolving polymer compositions and uses therefor |
| US4771799A (en) | 1987-10-29 | 1988-09-20 | Conoco Inc. | Method for improving the performance of highly viscous concentrates of high molecular weight drag reducing polymers |
| US5080121A (en) | 1990-08-06 | 1992-01-14 | Council Of Scientific & Industrial Research | Process for the preparation of a new polymer useful for drag reduction in hydrocarbon fluids in exceptionally dilute polymer solutions |
| US5244937A (en) | 1990-09-04 | 1993-09-14 | Conoco Inc. | Stable nonagglomerating aqueous suspensions of oil soluble polymeric friction reducers |
| DE4028940A1 (en) | 1990-09-12 | 1992-03-19 | Basf Ag | PROCESS FOR CRUSHING POLYISOBUTES |
| US5165441A (en) | 1991-12-30 | 1992-11-24 | Conoco Inc. | Process and apparatus for blending drag reducer in solvent |
| US5165440A (en) | 1991-12-30 | 1992-11-24 | Conoco Inc. | Process and apparatus for blending viscous polymers in solvent |
| US5449732A (en) | 1993-06-18 | 1995-09-12 | Conoco Inc. | Solvent free oil soluble drag reducing polymer suspension |
| US5376697B1 (en) | 1993-06-21 | 1998-06-02 | Conoco Inc | Drag reducers for flowing hydrocarbons |
| US5404132A (en) * | 1994-03-14 | 1995-04-04 | Canty; Jeffery N. | Deflection monitoring system |
| US5539044A (en) | 1994-09-02 | 1996-07-23 | Conoco In. | Slurry drag reducer |
| US5733953A (en) * | 1995-06-29 | 1998-03-31 | Baker Hughes Incorporated | Low viscosity, high concentration drag reducing agent and method therefor |
| US6172151B1 (en) | 1996-10-15 | 2001-01-09 | Conoco Inc. | Nonaqueous drag reducing suspensions |
| US6126872A (en) | 1998-01-27 | 2000-10-03 | Baker Hughes Incorporated | Microencapsulated drag reducing agents |
| FI117704B (en) | 2000-05-15 | 2007-01-31 | M I Finland Oy | Process for producing a flow resistance decreasing composition and method for reducing the flow resistance of the piston flow |
| AU2002219885A1 (en) | 2000-11-28 | 2002-06-11 | Conoco Inc. | Drag-reducing polymer suspensions |
| US6399676B1 (en) | 2000-11-28 | 2002-06-04 | Conoco, Inc. | Drag-reducing polymer suspensions |
| US20020065352A1 (en) | 2000-11-28 | 2002-05-30 | Johnston Ray L | Drag-reducing polymers and suspensions thereof |
| US6576732B1 (en) | 2000-11-28 | 2003-06-10 | Conocophillips Co. | Drag-reducing polymers and drag-reducing polymer suspensions and solutions |
| US7012046B2 (en) | 2001-06-08 | 2006-03-14 | Eaton Gerald B | Drag reducing agent slurries having alfol alcohols and processes for forming drag reducing agent slurries having alfol alcohols |
| US6989357B2 (en) | 2001-06-08 | 2006-01-24 | Eaton Gerald B | Alcohol absorbed polyalphaolefin drag reducing agents |
| CN1513018A (en) | 2001-09-28 | 2004-07-14 | ��ŵ�Ʒ����ֹ�˾ | Method of manufacturing drag-reducing polymer suspensions |
| CA2444002A1 (en) | 2001-09-28 | 2003-04-10 | Conoco, Inc. | Drag-reducing polymer suspensions |
| JP2005526161A (en) | 2002-05-14 | 2005-09-02 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Packaging and containers made from water-soluble polyamides and methods for making them |
| JP2005527606A (en) | 2002-05-14 | 2005-09-15 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Solubilized formulation containing nylon and suitable for personal care products |
-
2002
- 2002-12-17 US US10/321,762 patent/US6649670B1/en not_active Expired - Lifetime
-
2003
- 2003-10-27 US US10/694,585 patent/US7119132B2/en not_active Expired - Lifetime
- 2003-11-03 MX MXPA05006393A patent/MXPA05006393A/en active IP Right Grant
- 2003-11-03 EP EP20030778079 patent/EP1578804B1/en not_active Expired - Fee Related
- 2003-11-03 AU AU2003286863A patent/AU2003286863A1/en not_active Abandoned
- 2003-11-03 WO PCT/US2003/034935 patent/WO2004060926A1/en not_active Application Discontinuation
- 2003-11-03 CA CA 2509220 patent/CA2509220C/en not_active Expired - Lifetime
-
2005
- 2005-07-12 NO NO20053391A patent/NO332983B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP1578804A1 (en) | 2005-09-28 |
| NO332983B1 (en) | 2013-02-11 |
| CA2509220C (en) | 2010-09-14 |
| US7119132B2 (en) | 2006-10-10 |
| EP1578804B1 (en) | 2011-03-09 |
| WO2004060926A1 (en) | 2004-07-22 |
| AU2003286863A1 (en) | 2004-07-29 |
| US20040132883A1 (en) | 2004-07-08 |
| US6649670B1 (en) | 2003-11-18 |
| NO20053391D0 (en) | 2005-07-12 |
| MXPA05006393A (en) | 2005-08-29 |
| NO20053391L (en) | 2005-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2509220A1 (en) | Continuous neat polymerization and ambient grinding methods of polyolefin drag reducing agents | |
| CA2135932C (en) | Solvent free oil soluble drag reducing polymer suspension | |
| US6160036A (en) | Microencapsulated drag reducing agents | |
| US6841593B2 (en) | Microencapsulated and macroencapsulated drag reducing agents | |
| EP2447594B1 (en) | Modified latex drag reducer and processes therefor and therewith | |
| EP2195377B1 (en) | High polymer content hybrid drag reducers | |
| CA2429939C (en) | Drag-reducing polymers and drag-reducing polymer suspensions and solutions | |
| Demirors | The history of polyethylene | |
| US6596832B2 (en) | Polymer compositions useful as flow improvers in cold fluids | |
| GB2363383A (en) | Microencapsulated drag reducing agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20231103 |