EP3024860A1 - Viscosifiant a base de particules polymeriques filamenteuses - Google Patents
Viscosifiant a base de particules polymeriques filamenteusesInfo
- Publication number
- EP3024860A1 EP3024860A1 EP14759007.9A EP14759007A EP3024860A1 EP 3024860 A1 EP3024860 A1 EP 3024860A1 EP 14759007 A EP14759007 A EP 14759007A EP 3024860 A1 EP3024860 A1 EP 3024860A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- use according
- particles
- macroinitiator
- water
- filamentous
- 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.)
- Ceased
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0241—Containing particulates characterized by their shape and/or structure
- A61K8/027—Fibers; Fibrils
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- A61K8/8152—Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/90—Block copolymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
-
- 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
- C08F293/00—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
- C08F293/005—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule using free radical "living" or "controlled" polymerisation, e.g. using a complexing agent
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/43—Thickening agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/66—Additives characterised by particle size
- C09D7/68—Particle size between 100-1000 nm
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/588—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/10—General cosmetic use
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/48—Thickener, Thickening system
-
- 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
- C08F2438/00—Living radical polymerisation
- C08F2438/02—Stable Free Radical Polymerisation [SFRP]; Nitroxide Mediated Polymerisation [NMP] for, e.g. using 2,2,6,6-tetramethylpiperidine-1-oxyl [TEMPO]
Definitions
- the present invention relates to the use of polymeric particles in the form of filaments consisting of block copolymers, as viscosifiers or rheology modifiers of aqueous or organic solutions. More particularly, the invention relates to the use of said cross-linked filamentous polymeric particles for improving the thermal aging resistance of an aqueous or organic solution.
- the water-soluble polymers charged (such as HPMA or "high molecular weight polyacrylamide” which are acrylamides copolymerized with an ionic monomer) have a viscosifiant character by the significant increase in the radius of gyration of the molecule generated by the repulsive interactions of the charges present in the molecule.
- the presence of salts or a variation in pH of the medium can "screen” these charges, eliminate these interactions and thus suppress the viscosifying effect.
- these polymers tend to degrade at temperatures above 90 ° C and thus lose their rheological properties.
- Hydrophilic biopolymers such as scleroglucan are very effective rheology modifiers but have a very high sensitivity to bacterial degradation. These molecules are degraded by certain microorganisms and thus lose all viscosifying and rheo-fluidifying properties.
- PHAs hydrophobically associative polymers
- Novel polymeric compounds capable of modifying the rheology of aqueous or organic solutions and which overcomes the disadvantages presented above have been proposed by the Applicant in the applications WO 2012/085415 and WO 2012/085473. These documents describe polymeric filamentous structures able to maintain their morphology after substantial dilution in water and / or in an organic solvent.
- polymeric particles in the form of filaments consisting of block copolymers have a viscosity and shear thinning character in a dispersed medium and at a very low concentration.
- the viscosifying and rheofluidifying effect of said filamentous particles is not affected by the presence of salt or by the pH variations of the medium and said particles are not sensitive to bacterial degradation.
- compositions comprising said filamentous polymeric particles obtained in the presence of a crosslinking agent, exhibits an increased resistance to thermal aging, which allows it to keep its rheological behavior longer and in a higher temperature range. the compositions of the prior art, even at a very low level of said particles.
- the invention relates to the use of a latex of filamentous polymeric particles consisting of block copolymers synthesized by controlled radical polymerization in emulsion, to improve the resistance to thermal aging of an aqueous or organic solution.
- these polymeric particles are crosslinked and are in the form of cylinders having a length / diameter ratio greater than 100.
- a composition obtained by the addition of at least 100 ppm, preferably from 500 to 10,000 ppm of these particles to an aqueous or organic solution will retain its viscosity character for several days at a temperature above 100 ° C., whereas compositions based on uncrosslinked polymeric particles of particles lose their viscosity character after one day at more than 100 ° C. due to the degradation of said non-crosslinked particles.
- the use of said latex of crosslinked filamentous polymeric particles at a mass ratio of 1% makes it possible to maintain the viscosity of a composition for 4 days at 140 ° C.
- the synthesis of said particles is carried out from at least one hydrophobic monomer and a crosslinking agent in the presence of a living macroinitiator derived from a nitroxide, characterized in that:
- said filamentous particles are obtained in an aqueous medium directly during the synthesis of said block copolymers carried out by heating the reaction medium to a temperature of 60 to 120 ° C,
- said macroinitiator is water soluble
- the percentage of the molar mass of the water-soluble macroinitiator in the final block copolymer is between 10 and 50%, and in that
- the degree of conversion of the hydrophobic monomer is at least 50%.
- This direct method of preparing crosslinked filamentous particles does not require the use of organic co-solvent.
- filamentous particles corresponds to assemblages of amphiphilic macromolecules which, when they are suspended in water (that is, when they form an aqueous dispersion), take the form of filaments (in other words, solid and flexible cylinders) whose core consists of the hydrophobic elements and the surface of the hydrophilic elements of said macromolecules.
- TEM transmission electron microscopy
- the microscopy images show filaments whose diameter is greater than or equal to 5 nm and the length is greater than 500 nm, preferably greater than 1 micron, advantageously greater than 5 micron.
- the length of the filamentous particles according to the invention is at least 10 micrometers.
- the synthesis of said filamentous particles is carried out by radical transfer reversible transfer polymerization (RAFT) in water in the presence of a hydrophilic macromolecular RAFT agent (or macroagent RAFT).
- RAFT radical transfer reversible transfer polymerization
- compositions targeted by the present invention are obtained by adding said crosslinked polymeric filamentous particles to an aqueous or organic solution at a mass level of at least 100 ppm, preferably from 500 to 10,000 ppm.
- Said compositions whose resistance to aging, in particular to thermal aging is improved, are particularly suitable for the extraction reinforced with hydrocarbons.
- the composition according to the invention containing at least 500 ppm of said particles and mixed with water or brine is injected under pressure into the rock.
- Other applications of these compositions are in the cosmetic field, that of paints and thickeners.
- FIG. 1 illustrates the effect of thermal aging on the rheological behavior of an aqueous composition comprising polymeric particles. crosslinked filaments in comparison with an aqueous composition comprising non-crosslinked filamentous polymeric particles.
- the object of the present invention relates to the rheological properties (viscosity and rheofiuidific character) in dispersed medium of copolymer particles having a specific form of elongate fibril. It has now been found that a composition comprising said filamentous polymeric particles crosslinked even at very low concentrations, has an increased resistance to aging, especially to thermal aging, which allows it to keep its rheological behavior longer and in a range of temperatures wider than the compositions of the prior art.
- the viscosity at very low concentrations is provided by a pseudo-percolation of the structure in dispersed medium obtained at very low concentrations.
- the rheofluidiant character is obtained by a pseudo-dangling obtained very rapidly (as a function of the deformation or shear gradient) thanks to the rigidity and the very large relationship between the length and the radius of the structure.
- this copolymer structure is not sensitive to salinity or pH variations of the aqueous or organic medium to be viscosified.
- “Rheofluidification” means the reduction of the rheological properties (viscosity) under the effect of an increase in stress, shear or deformation applied to the studied system.
- the subject of the invention is the use of a latex of filamentous polymeric particles consisting of block copolymers synthesized by controlled radical polymerization in emulsion, in order to improve the resistance to thermal aging of an aqueous or organic solution.
- these polymeric particles are crosslinked and are in the form of cylinders having a length / diameter ratio of greater than 100.
- latex is meant here a continuous phase, aqueous or organic, in which the fibers are dispersed or filamentous polymeric particles consisting of block copolymers.
- the synthesis of said particles is carried out from at least one hydrophobic monomer and a crosslinking agent in the presence of a living macroinitiator derived from a nitroxide.
- said crosslinked filamentous particles are obtained in an aqueous synthesis medium of said block copolymers carried out by heating the reaction medium to a temperature of 60 to 120 ° C, with a percentage of the molar mass of the hydrophilic macroinitiator in the copolymer to final blocks of between 10 and 50%, the conversion rate of the hydrophobic monomer and crosslinking agent being at least 50%.
- the crosslinking agent is advantageously introduced into the reaction medium at a content of at least 1% and preferably between 5 and 15% by weight relative to the weight of hydrophobic monomer.
- the initial pH of the aqueous medium can vary between 5 and 10. This direct method of preparation of crosslinked filamentous particles does not require the use of organic co-solvent.
- living macroinitiator is meant a polymer comprising at least one end capable of being reengaged in a polymerization reaction by adding monomers at an appropriate temperature and pressure.
- said macroinitiator is prepared by PRC.
- water-soluble macroinitiator is meant a polymer soaked in water having at its end a reactive function capable of repriming a radical polymerization. This macroinitiator is composed mainly of hydrophilic monomers, ie monomers having one or more functions capable of establishing hydrogen bonds with water.
- an amphiphilic copolymer will be formed, the hydrophilic block of which will consist of the macro-initiator, while the hydrophobic block will result from the polymerization of the hydrophobic monomer (s).
- said pre-formed hydrosoluble macro-initiator is added to the reaction medium comprising at least one hydrophobic monomer.
- said water-soluble macroamorator is synthesized in the aqueous reaction medium in a preliminary stage, without isolation of the macroinitiator formed nor elimination of any residual hydrophilic monomers. This second variant is a polymerization. -pot ".
- hydrophobic monomers can be chosen from:
- vinylaromatic monomers such as styrene or substituted styrenes, alkyl, cycloalkyl or aryl acrylates such as methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate or phenyl acrylate,
- alkyl, cycloalkyl, alkenyl or aryl methacrylates such as methyl, butyl, lauryl, cyclohexyl, allyl, 2-ethylhexyl or phenyl methacrylate;
- reaction medium which mainly comprises water.
- the crosslinking agent employed is a crosslinking comonomer different from the abovementioned hydrophobic monomers.
- crosslinking comonomer means a monomer which, by virtue of its reactivity with the other monomers present in the polymerization medium, is capable of generating a covalent three-dimensional network. From a chemical point of view, a crosslinking comonomer generally comprises at least two ethylenic polymerizable functional groups which, when they react, are capable of creating bridges between several polymeric chains.
- crosslinking comonomers may be capable of reacting with unsaturated hydrophobic monomers during the synthesis of said particles.
- crosslinking comonomers include divinylbenzenes, trivinylbenzenes, allylic (meth) acrylates, diallylmaleatepolyol (meth) acrylates such as trimethylolpropane tri (meth) acrylates, alkylene glycol di (meth) acrylates which have from 2 to 10 carbon atoms in the carbon chain such as ethylene glycol di (meth) acrylates, 1,4-butanediol di (meth) acrylates, 1,6-hexanediol di (meth) acrylates, ⁇ , ⁇ '-alkylene bisacrylamides, such as ⁇ , ⁇ '-methylene bisacrylamide.
- divinylbenzene or dimethacrylate will be used as the crosslinking agent.
- the implementation of said method makes it possible to obtain crosslinked filamentary polymer particles in which the mass ratio of the hydrophilic part constituting the block copolymer is less than 25%.
- the crosslinked filamentous particles according to the invention have a percentage of the molar mass of the hydrophilic macroinitiator in the final block copolymer of between 10 and 50%.
- the percentage of the molar mass of the water-soluble macroinitiator in the final block copolymer is between 10 and 30%.
- the crosslinked filamentous particles according to the invention are in the form of cylindrical fibers having a length / diameter ratio greater than 100; their diameter is constant over their entire length and is greater than or equal to 5 nm, while their length is greater than 500 nm, preferably greater than 1 micron, advantageously greater than 5 microns and even more preferably it is greater than or equal to at 10 micrometers.
- the filamentous particles according to the invention have their shape and structure remain in a dispersed medium, regardless of their concentration in the medium and / or variations in pH or salinity thereof.
- the synthesis of said crosslinked filamentous particles is carried out by radical transfer reversible transfer polymerization (RAFT) in water in the presence of a hydrophobic macro-molecular RAFT agent (or macroagent RAFT).
- RAFT radical transfer reversible transfer polymerization
- RAFT agent or macroagent RAFT
- This example illustrates the preparation of a living poly (methacrylic acid-co-styrene sulphonate sodium) copolymer, used as macroinitiator, control agent and stabilizer, at the bottom of the tank, for the synthesis of hairy nanoparticles in the form of cross-linked filamentous micelles of poly (sodium methacrylate-co-styrene sulfonate sodium) -poly (n-butyl methacrylate-co-styrene) block copolymers.
- the amphiphilic copolymer is synthesized in a single step.
- the macroinitiator synthesis conditions can be varied (duration of the polymerization, sodium styrene sulfonate content, concentration and pH) to adapt and vary the composition of the macroinitiator.
- the BlocBuilder -MA solution is introduced into the reactor at room temperature with stirring at 250 rpm.
- the monomer solution is then slowly introduced into the reactor.
- the reactor is subjected to a pressure of 1.1 bar in nitrogen and still stirring.
- the temperature of the reaction medium reaches 65 ° C. after 15 minutes.
- Table 1 shows the characteristics of the latexes taken from the second stage of the nanoparticle synthesis.
- the diameter of the fibers measured by TEM Transmission Electron Microscopy (Image J software) is 45.3 nm.
- This microscope is a 100 keV JEOL 100 Cx II equipped with a SIS Keen View CCD camera.
- This example illustrates the synthesis of filamentous particles of block copolymers poly (sodium methacrylate-co-styrene sodium sulfonate) -O-poly (methacrylate). methyl-co-styrene) from the poly (sodium methacrylate-sodium styrene sulfonate) macro-initiator prepared as follows:
- a mixture containing 75.2 g of methacrylic acid (2.0 mol.L- 1 ), 17.32 g of sodium styrene sulfonate (0.18 mol.L- 1) is f 0 , ss 0.087 and 398 g.
- DMSO was degassed at room temperature by a nitrogen bubbling. 3.782 g (2,27x 10-2 mol l "1) of the alkoxyamine BlocBuilder ® -MA (N- (2-methylpropyl) -N- (l diethylphosphono-2,2-dimethylpropyl) -O- (2-carboxylprop-2-yl) hydroxylamine) is then added.
- Degassing is continued for 10 minutes.
- the degassed mixture is introduced into a three-necked IL, preheated to 75 ° C., surmounted by a condenser equipped with a bubbler, a nitrogen inlet and a thermometer.
- the macroinitiator obtained is P (MAA-co-SS) -SGi.
- the handling is stopped after 16 minutes of reaction by immersing the medium under stirring in an Erlenmeyer flask cooled with an ice bath.
- reaction medium is then precipitated dropwise, in two portions, in a total volume of 4.5 liters of cooled dichloromethane subjected to vigorous stirring. A white precipitate appears in the medium.
- the medium is filtered under porosity sinter No. 4 and then dried for 3 days under vacuum.
- the experimental M n is determined by steric exclusion chromatography in DMF containing 1 g / l LiBr, with polymethyl methacrylate calibration, after methylation of the methacrylic acid units in methyl methacrylate units.
- the flow rate is 0.8 mL / min with toluene as a flow rate marker.
- the samples are prepared at a concentration of 5 mg / ml, are filtered on 0.45 ⁇ filters and are analyzed on Polymer Standards Service Columns columns (GRAM 30-1000 ⁇ ).
- the polydispersity index I p is calculated from methyl methacrylate units.
- a second step 55.7 g of deionized water, 2.29 g of macroinitiator macroinitiator poly (sodium methacrylate-sodium-styrene sulphonate) (4.54 ⁇ 10 - ) are introduced into a 250-ml monocolumn flask. 3 mol.L -1 ea u), 23.7 g of 1M sodium hydroxide (1 equivalent relative to the methacrylic acid units) and 0.295 g of Na 2 CO 3 (3.5 x 10 -2 mol.L -1 ).
- the medium is then introduced into a Parr® 5100 series reactor, equipped with a 300-mL single-shell glass vessel with an internal diameter of 63 mm and a useful height of 102 mm. Stirring is maintained by a magnetic drive stirrer with a 250 rpm turbine. The reactor vessel is preheated.
- Table 3 below shows the characteristics of the latexes taken.
- the latex obtained at the end of the polymerization is white and is very viscous.
- Latex 1% by weight of crosslinked polymeric filamentous particles (sample A) and uncrosslinked (sample B) are subjected to thermal aging at 140 ° C. in a confined aqueous medium for several days.
- the rheological properties and the structure of the particles are followed over time.
- the rheological properties of these compositions are measured using an imposed stress rheometer type AtonPaar MCR301.
- the flow measurements (viscosity as a function of shear rate) are carried out at room temperature (25 ° C) with a quilt or plane-plane geometry (depending on the viscosity range).
- the thermal aging tests are carried out in a closed reactor, under pressure to keep the water under liquid.
- FIG. 1 represents the variation of the viscosity (Pa.s at 20 ° C.) as a function of the shear rate (s 1 ).
- the symbols used in Figure 1 have the following meanings:
- the crosslinking factor is very important since in the case of a latex consisting of non-crosslinked fibers (obtained according to Comparative Example 2), the thermal aging degrades the fibrillar structure of the latex and the rheological properties (viscosifiers and rheofluidifiers) are lost (the viscosity falls by two orders of magnitude and becomes constant as a function of the shear rate.
- BlockBuilder ® -MA- N- (2-methylpropyl) -N- (1-diethylphosphono-2,2-dimethylpropyl) -O- (2-carboxylprop-2-yl) hydroxylamine
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Dermatology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Nanotechnology (AREA)
- Polymerisation Methods In General (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Graft Or Block Polymers (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1357360A FR3008983B1 (fr) | 2013-07-25 | 2013-07-25 | Viscosifiant a base de particules polymeriques filamenteuses |
| PCT/FR2014/051906 WO2015011412A1 (fr) | 2013-07-25 | 2014-07-23 | Viscosifiant a base de particules polymeriques filamenteuses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3024860A1 true EP3024860A1 (fr) | 2016-06-01 |
Family
ID=49876757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14759007.9A Ceased EP3024860A1 (fr) | 2013-07-25 | 2014-07-23 | Viscosifiant a base de particules polymeriques filamenteuses |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20160250108A1 (fr) |
| EP (1) | EP3024860A1 (fr) |
| CN (1) | CN105492478A (fr) |
| CA (1) | CA2918926A1 (fr) |
| FR (1) | FR3008983B1 (fr) |
| WO (1) | WO2015011412A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3517177A1 (fr) | 2018-01-29 | 2019-07-31 | Basf Se | Composition permettant d'augmenter la viscosité d'une huile |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5266646A (en) * | 1989-05-15 | 1993-11-30 | Rohm And Haas Company | Multi-stage polymer particles having a hydrophobically-modified, ionically-soluble stage |
| US6369135B1 (en) * | 1995-08-15 | 2002-04-09 | Georgia Tech Research Corporation | Water-borne alkyd coatings by miniemulsion polymerization |
| US6075073A (en) * | 1998-08-20 | 2000-06-13 | Apex Medical Technologies, Inc. | Latices from emulsified hydrocarbon rubber solutions by membrane separation |
| FR2931153B1 (fr) * | 2008-05-19 | 2010-05-28 | Arkema France | Procede de preparation d'une dispersion de particules polymeriques en milieu aqueux |
| FR2969665B1 (fr) * | 2010-12-23 | 2013-09-13 | Arkema France | Particules polymeriques filamenteuses et leur utilisation comme modificateurs de rheologie |
-
2013
- 2013-07-25 FR FR1357360A patent/FR3008983B1/fr not_active Expired - Fee Related
-
2014
- 2014-07-23 EP EP14759007.9A patent/EP3024860A1/fr not_active Ceased
- 2014-07-23 CA CA2918926A patent/CA2918926A1/fr not_active Abandoned
- 2014-07-23 CN CN201480041914.0A patent/CN105492478A/zh active Pending
- 2014-07-23 WO PCT/FR2014/051906 patent/WO2015011412A1/fr not_active Ceased
- 2014-07-23 US US14/906,731 patent/US20160250108A1/en not_active Abandoned
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2015011412A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3008983B1 (fr) | 2015-07-17 |
| US20160250108A1 (en) | 2016-09-01 |
| WO2015011412A1 (fr) | 2015-01-29 |
| CA2918926A1 (fr) | 2015-01-29 |
| CN105492478A (zh) | 2016-04-13 |
| FR3008983A1 (fr) | 2015-01-30 |
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