RECOVERY OF ADDITIVE MANUFACTURING SUPPORT MATERIALS

The inventions is directed to a method for recovering support materials used in an additive manufacturing process. The method comprises exposing a precursor additive manufactured article comprised of a water soluble support polymer and an insoluble material to water. The water soluble support polymer is dissolved in the water. The remaining article is then removed from the water. The dissolved water soluble polymer is precipitated from the water. The precipitated polymer is separated from the water and any remaining water removed to recover the water soluble support polymer. The recovered water soluble support polymer may then be re-used to make further additive manufactured articles. 1. A method for recovering support materials used in an additive manufacturing process , the method comprising ,(i) providing a precursor additive manufactured article comprised of a water soluble support polymer and an insoluble material,(ii) exposing the precursor additive manufactured article to water such that the water soluble support polymer is dissolved in the water to form (a) an aqueous solution of the water soluble support polymer and water and (b) a finished additive manufactured article,(iii) removing the final additive manufactured article from the aqueous solution,(iv) precipitating the water soluble support polymer from the aqueous solution to form a precipitate of the water soluble support polymer,(v) separating the precipitate from the water, and(vi) removing any water remaining from the precipitate of the water soluble support polymer.2. The method of claim 1 , wherein the precipitating is carried out by changing the pH claim 1 , adding a salt claim 1 , changing the temperature of the aqueous solution or combination thereof.3. The method of claim 1 , wherein the water soluble support polymer is poly(2-ethyl-2-oxazoline) claim 1 , polyvinylalcohol claim 1 , an impact modified terpolymers of styrene claim 1 , methacrylic acid and butyl acrylate claim 1 , a copolymer ...

Pre-molding article from thermoset polymer dispersions

The invention is directed at new process and systems for preparing composite materials that include a polymer phase and a fiber phase.

Electrowetting optical device

An electrowetting optical device is provided comprising a conductive liquid and a non-conductive liquid, the liquids being non miscible, having different refractive indices and forming an interface, wherein the conductive liquid comprises from 5% by weight of a fluorinated salt, based the total weight of the conductive liquid. An apparatus comprising said electrowetting optical device is described as well.

HYDROCARBON SOLVENT STABLE AQUEOUS POUR POINT DEPRESSANT DISPERSION COMPOSITION

The present invention relates to an aqueous pour point depressant dispersion composition comprising an ethylene vinyl acetate copolymer (EVA); a dispersing agent; a polyethoxylated nonionic surfactant, a low level of hydrocarbon solvent, water; optionally one or more of an aqueous freezing point depressant, a stabilizing agent, or a basic metal substance and a method to use said composition. 2. The aqueous pour point depressant dispersion composition of wherein the average particle size of the dispersed EVA is equal to or less than 1 micrometer claim 1 , the amount of dispersing agent in the final composition is from 1 to 10 weight percent claim 1 , and the water:aqueous freezing point depressant mixture in the final composition is present in an amount of from 40 to 75 weight percent claim 1 , the water:aqueous freezing point depressant ratio is from 40:60 to 70:30.3. The aqueous pour point depressant dispersion composition of further comprising:(vii) a stabilizing agent in an amount of from 0.5 weight percent to 5 weight percent.4. The aqueous pour point depressant dispersion composition of wherein the polymer (i) is an ethylene vinyl acetate copolymer with 18 to 32 weight percent vinyl acetate and a melt index of 43 g/10 min determined according to ASTM D1238 at 190° C. and 2.16 kg.5. The aqueous pour point depressant dispersion composition of wherein the polymer (i) is an ethylene vinyl acetate copolymer with 32 weight percent vinyl acetate and a melt index of 43 g/10 min determined according to ASTM D1238 at 190° C. and 2.16 kg.6. The aqueous pour point depressant dispersion composition of wherein the dispersing agent (ii) comprises one or more of:{'sub': 1', '2', '1', '2, 'a a fatty acid/salt having the formula RCOORwherein Ris a straight chain, saturated or unsaturated, hydrocarbon radical of 8 to 25 carbon atoms and Ris H or a base-forming radical;'}b an alkyl, arene and/or alkylarene sulfonate;c a salt of a polymer of alkyl acrylate and/or alkyl methacrylate ...

FLEXIBLE POLYURETHANE FOAM HAVING PROLONGED RECOVERY TIME

Recovery times and/or airflow of flexible polyurethane foam is increased by including certain tackifiers in the foam formulation. The tackifiers are formed into an emulsion that includes a polyether containing oxyethylene groups, a nonionic surfactant and certain fumed silica, carbon black or talc particles. 1. An emulsion comprising i) at least one tackifier , ii) at least one polyether polyol having an oxyethylene content of at least 50% by weight , iii) at least one nonionic surfactant having a hydrophilic-lipophilic balance of 12 to 19 and iv) at least one hydrophobically-modified fumed silica , carbon black , hydrophobically modified talc , or a mixture of any two or more thereof , wherein the emulsion contains 0.1 to 5 weight percent of component iv) and no more than 10 weight percent water , based on the total weight of the emulsion , and the weight ratio of component ii) to component i) is 0.5 to 10.2. The emulsion of wherein the tackifier is one or more of a rosin claim 1 , a hydrogenated and/or esterified rosin claim 1 , a polyterpene claim 1 , a C5 aliphatic resin claim 1 , a C9 aromatic resin claim 1 , a C5/C9 copolymer resin claim 1 , a hydrogenated C5 or C9 resin claim 1 , a polymer or copolymer of butane claim 1 , an epoxy resin claim 1 , a styrene/conjugated diene copolymer claim 1 , an ethylene-acrylic acid copolymer claim 1 , an ethylene-higher alpha-olefin copolymer having a density of less than 0.900 g/cc a silicone oil claim 1 , a cellulosic claim 1 , cationic polyacrylamide claim 1 , para-t-octyl phenol formaldehyde resin claim 1 , a polyester having a number average molecular weight of 400 to 2000 claim 1 , a urethane acrylate oligomer claim 1 , and a room temperature liquid ethylene-propylene-diene resin.3. The emulsion of claim 1 , wherein the nonionic surfactant is one or more of a block copolymer of ethylene oxide and a higher alkylene oxide claim 1 , or an ethoxylated hydrocarbon in which the hydrocarbon portion includes a linear claim 1 ...

COMPOSITES FOR CURED-IN-PLACE PIPE

Embodiments of the present disclosure include flexible impregnated articles, composites produced by curing such flexible impregnated article, and processes for forming flexible impregnated articles. The flexible impregnated articles, composites, and processes can be used as alternatives to articles, composites, and processes in a cured-in-place pipe rehabilitation process that include epoxy resins, thus eliminating toxicity issues associated with the use of epoxy resins. The instantly-disclosed flexible impregnated articles, composites, and processes can be particularly useful for the CIPP process in potable water pipe and pressure pipe applications. 1. A flexible impregnated article comprising: [{'sub': 2', '3, '(a) a base resin comprising at least one C-Cpolyolefin having a melting point of at least 110° C.; and'}, {'sub': 2', '3, '(b) a dispersing agent comprising at least one of a polymer having ethylene and carboxylic acid, a modifying polymer comprising at least one maleated C-Cpolyolefin wax, or combinations thereof;'}], 'a fabric material comprising a thermoplastic backing layer and a fibrous layer impregnated with an aqueous dispersion, wherein the aqueous dispersion compriseswherein the flexible impregnated article has a flexural modulus of less than 15,000 psi.2. The flexible impregnated article of claim 1 , wherein the aqueous dispersion comprises the dispersing agent comprising at least one polymer having ethylene and carboxylic acid.3. The flexible impregnated article of claim 1 , wherein the flexible impregnated article is substantially free of epoxy and carbamide material.4. The flexible impregnated article of claim 1 , wherein the base resin comprises one or more components selected from the group consisting of polyethylene copolymers having a density above about 0.930 g/cm claim 1 , polypropylene copolymers claim 1 , or combinations thereof.5. The flexible impregnated article of claim 1 , wherein the dispersing agent has a melting point less than ...

Process for Forming a Rotational Molded Article

The present disclosure provides a process. The process includes providing a blend containing (A) a first powder including (i) a polyolefin having a density from 0.860 g/cc to 0.910 g/cc, and a melt index from 1.5 g/10 min to 1,000 g/10 min; (ii) from 1 wt % to 15 wt % of a dispersant selected from an acrylic dispersant, a poloxamer, and combinations thereof; and (iii) optionally, a polyolefin wax, the first powder having a mean volume average particle size from 1 μm to 300 μm; and (B) a second powder including an ethylene/α-olefin copolymer having (i) a density from 0.920 g/cc to 0.955 g/cc; and (ii) a melt index from 1.0 g/10 min to 15 g/10 min, the second powder having a mean volume average particle size from 325 μm to 4,000 μm; and rotational molding the blend to form a rotational molded article.

Method for producing encapsulated quantum dots

A method for encapsulating quantum dots. The method comprises steps of: (a) mixing quantum dots with a polymer having a molecular weight from 1,000 to 200,000 and a solubility parameter from 14 to 18.75 (J/cm3)1/2 and a solvent to form a mixture; and (b) spray drying the mixture to produce an encapsulated quantum dot powder.

COMPOSITE TRANSPARENT PRESSURE SENSING FILM

A composite transparent pressure sensing film is provided having a matrix polymer wherein the matrix polymer is a combination of 25 to 75 wt % of an alkyl cellulose and 75 to 25 wt % of a polysiloxane; and, a plurality of hybrid particles, wherein each hybrid particle in the plurality of hybrid particles, comprises a plurality of primary particles bonded together with an inorganic binder; wherein the plurality of hybrid particles are disposed in the matrix polymer; wherein an electrical resistivity of the composite transparent pressure sensing film is variable in response to an applied pressure having a z-component directed along the thickness of the composite transparent pressure sensing film such that the electrical resistivity is reduced in response to the z-component of the applied pressure. 1. A composite transparent pressure sensing film , comprising:a matrix polymer, wherein the matrix polymer is a combination of 25 to 75 wt % of an alkyl cellulose and 75 to 25 wt % of a polysiloxane; and,{'sub': 'avg', 'a plurality of hybrid particles, wherein each hybrid particle in the plurality of hybrid particles comprises a plurality of primary particles bonded together with an inorganic binder, wherein the plurality of primary particles is selected from the group consisting of electrically conductive particles and electrically semiconductive particles, and wherein the plurality of hybrid particles has an average particle size, PS, of 1 to 50 μm;'}wherein the plurality of hybrid particles are disposed in the matrix polymer;{'sub': avg', 'avg, 'wherein the composite transparent pressure sensing film has a length, a width, a thickness, T, and an average thickness, T; wherein the average thickness, T, is 0.2 to 1,000 μm; and,'}wherein an electrical resistivity of the composite transparent pressure sensing film is variable in response to an applied pressure having a z-component directed along the thickness, T, of the composite transparent pressure sensing film such that the ...

FLEXIBLE POLYURETHANE FOAM HAVING PROLONGED RECOVERY TIME

Recovery times and/or airflow of flexible polyurethane foam is increased by including certain tackifiers in the foam formulation. The tackifiers are characterized in being incompatible with polyol or polyol mixture used to make the foam, having a viscosity of at least 5,000 centipoise at 25#C and having a glass transition temperature of at most 20#C. The tackifier is pre-blended with certain monols to form a lower-viscosity blend that is combined with one or more other polyols and a polyisocyanate to form a reaction mixture for producing a polyurethane foam. 1. A method of making a flexible polyurethane foam , comprising reacting , at an isocyanate index of 60 to 110 , a reaction mixture comprisingA) a polyether polyol having a hydroxyl equivalent weight of no greater than 225 or mixture of two or more such polyether polyols, wherein the polyol or mixture of polyols (i) has a number average hydroxyl functionality of 2 to 4; (ii) includes at least one polyether polyol that has a hydroxyl number of less than 170 and (iii) has an oxyethylene content of at least 10% by weight and/or includes at least one polyether polyol that contains at least 40% by weight oxyethylene units;B) 1 to 5 parts by weight water per 100 parts by weight of component A), withC) at least one organic polyisocyanate,in the presence ofD) at least one catalyst for the reaction of an isocyanate group with water and/or an alcohol;E) at least one foam stabilizing surfactant,F) 1 to 45 parts by weight of a tackifier per 100 parts by weight of component A) wherein(i) the tackifier has a viscosity of at least 5,000 centipoise at 25° C., and(ii) the tackifier has a glass transition temperature of at most 20° C., andG) 0.05 to 10 parts by weight per 100 parts by weight of component A) of at least one monoalcohol, the monoalcohol being characterized in having at least 4 carbon atoms, a molecular weight of up to 300 g/mol and a viscosity of up to 500 cps at 25° C. as measured using a cone-and-plate viscometer ...

TRANSPARENT PRESSURE SENSING FILM WITH HYBRID PARTICLES

A transparent pressure sensing film is provided having a matrix polymer; and, a plurality of hybrid particles; wherein the plurality of hybrid particles are disposed in the matrix polymer; wherein each hybrid particle in the plurality of hybrid particles, comprises a plurality of primary particles bonded together with an inorganic binder; wherein an electrical resistivity of the transparent pressure sensing film is variable in response to an applied pressure having a z-component directed along the thickness of the transparent pressure sensing film such that the electrical resistivity is reduced in response to the z-component of the applied pressure. 1. A transparent pressure sensing film , comprising:a matrix polymer; anda plurality of hybrid particles;wherein the plurality of hybrid particles are disposed in the matrix polymer;{'sub': 'avg', 'wherein the transparent pressure sensing film has a length, a width, a thickness, T, and an average thickness, T;'}{'sub': 'avg', 'wherein the average thickness, T, is 0.2 to 1,000 μm;'}wherein each hybrid particle in the plurality of hybrid particles, comprises a plurality of primary particles bonded together with an inorganic binder;{'sub': 'avg', 'wherein the plurality of hybrid particles has an average particle size, PS, of 1 to 50 μm;'}wherein the plurality of primary particles is selected from the group consisting of electrically conductive particles and electrically semiconductive particles;wherein the matrix polymer is electrically non-conductive;wherein an electrical resistivity of the transparent pressure sensing film is variable in response to an applied pressure having a z-component directed along the thickness, T, of the transparent pressure sensing film such that the electrical resistivity is reduced in response to the z-component of the applied pressure.2. The transparent pressure sensing film of claim 1 , wherein the plurality of primary particles is selected from the group consisting of antimony doped tin ...

TRANSPARENT PRESSURE SENSING FILM COMPOSITION

A transparent pressure sensing film composition is provided having a matrix polymer; and, a plurality of conductive particles; wherein the matrix polymer comprises 25 to 100 wt % of an alkyl cellulose; and, wherein an electrical resistivity of the transparent pressure sensing film is variable in response to an applied pressure having a z-component directed along the thickness of the transparent pressure sensing film such that the electrical resistivity is reduced in response to the z-component of the applied pressure. 1. A transparent pressure sensing film , comprising:a matrix polymer; and,{'sub': 'avg', 'a plurality of conductive particles; having an average aspect ratio, AR, of ≦2;'}wherein the matrix polymer comprises 25 to 100 wt % of an alkyl cellulose;wherein the plurality of conductive particles are selected from the group consisting of electrically conductive materials and electrically semiconductive materials;wherein the plurality of conductive particles are disposed in the matrix polymer;wherein the transparent pressure sensing film contains <10 wt % of the plurality of conductive particles;{'sub': 'avg', 'wherein the transparent pressure sensing film has a length, a width, a thickness, T, and an average thickness, T;'}{'sub': 'avg', 'wherein the average thickness, T, is 0.2 to 1,000 μm;'}wherein the matrix polymer is electrically non-conductive;wherein an electrical resistivity of the transparent pressure sensing film is variable in response to an applied pressure having a z-component directed along the thickness, T, of the transparent pressure sensing film such that the electrical resistivity is reduced in response to the z-component of the applied pressure.2. The transparent pressure sensing film of claim 1 , wherein the matrix polymer further comprises a polysiloxane.3. The transparent pressure sensing film of claim 2 , wherein the matrix polymer is a combination of 25 to 75 wt % of the alkyl cellulose and 75 to 25 wt % of the polysiloxane.4. The ...

METHOD OF MAKING A GREASE THICKENER AND THE THICKENER MADE BY THE METHOD

A continuous process for producing a polyurea concentrate or powder. The process includes combing at least one amine and an isocayante in the presence of a liquid diluent or a base oil in a rotor stator mixer. The concentrate comprises a polyurea in a base oil wherein the concentration of from about 20 weight percent to about 50, or 40 or 35 or 30 weight percent of polyurea based on total weight of grease thickener. The powder has particle size of 2 to 400 microns. This concentrate or powder can then be formulated by grease manufacturers to the desired final properties without the need for handling of the isocyanate and amine raw materials. 1. A process comprising providing at least one amine and a first base oil to a rotor stator mixer which is operating at a shear rate of less than 5000 reciprocal seconds (1/sec) , adding a isocyanate to the mixer in the shear zone and in a position such that a residence time in the mixer after addition of the isocyanate is less than 20 seconds to produce a paste comprising a polyurea.2. The process of characterized in that the process is continuous.3. The process of wherein the at least one amine is a mixture comprising a first linear primary amines having six to eighteen carbon atoms and either a second linear primary amines having six to eighteen carbon atoms or a cyclic primary amine.4. The process of wherein the residence time is less than 10 seconds.5. The process of wherein the residence time is less than 5 seconds.6. The process of wherein the at least one amine is a primary amine and the isocyanate is a di-isocyanate such that the poly urea formed is a diurea.7. The process of wherein the at least one amine comprises an alkylamine and a fatty amine.8. The process of wherein the paste comprises at least 20 weight percent of the polyurea.9. The process of wherein the first base oil is selected from API Groups I claim 1 , II claim 1 , III claim 1 , IV or V.10. The process of further comprising diluting the paste with a ...

PREMOLDING ARTICLE FROM THERMOSET AND THERMOPLASTIC POLYMER DISPERSIONS

The invention is directed at new process and systems for preparing composite materials that include a polymer phase and a fiber phase. 1. A pre-molding article comprisingi) a polymer phase including one or more thermoset resins, one or more thermoplastic resins, and one or more cross-linking agent suitable for cross-linking the thermoset resin; and ii) an inorganic phase, wherein the inorganic phase is present at a concentration of about 30 volume percent or more based on the total volume of the polymer phase and the inorganic phase;wherein the polymer phase is a continuous phase; and the weight ratio of the one or more thermoset resins to the one or more thermoplastic resins is about 0.1 or more.2. The pre-molding article of claim 1 , wherein one of the thermoset resins has an initial glass transition temperature claim 1 , T claim 1 , and one of the thermoplastic resins has a peak melting temperature claim 1 , T claim 1 , wherein Tis less than T.3. The pre-molding article of claim 2 , wherein the cross-linking agent is present at a concentration sufficiently high so that upon curing claim 2 , the glass transition temperature of the thermoset resin is increased to T claim 2 , wherein Tis greater than T.4. The pre-molding article of claim 1 , wherein the cross-linking agent is encapsulated.5. The article of claim 1 , wherein the inorganic includes fibers claim 1 , selected from woven fibers claim 1 , fiber particles claim 1 , unidirectional fibers claim 1 , fiber mats claim 1 , or any combination thereof.6. The pre-molding article of claim 1 , wherein the polymer phase includes thermoset resin domains having at least 70% by volume thermoset resin and thermoplastic resin domains having at least 70% by volume thermoplastic resin. The present application claims the benefit of U.S. Provisional Patent Application No. 61/599,062 (filed on Feb. 15, 2012) which is hereby incorporated by reference in its entirety for all purposes.Composite materials including thermoset resins ...

PRE-MOLDING ARTICLE FROM THERMOSET POLYMER DISPERSIONS

The invention is directed at new process and systems for preparing composite materials that include a polymer phase and a fiber phase. 1. A pre-molding article comprising 'a first thermoset resin, a second thermoset resin having a glass transition temperature that is different from the glass transition temperature of the first thermoset resin, and a curing agent; and', 'i) a polymer phase including'}ii) an inorganic phase, wherein the inorganic phase is present at a concentration of about 30 volume percent or more based on the total volume of the polymer phase and the inorganic phase;wherein the polymer phase is a continuous phase; and the weight ratio of the first thermoset resin to the second thermoset resin is about 1 or more.2. The article of claim 1 , wherein the curing agent is encapsulated.3. The article of claim 1 , wherein the inorganic phase includes fibers.4. The article of claim 3 , wherein the fibers are present at a concentration of about 60 volume percent or greater claim 3 , based on the total volume of the polymer phase and the inorganic phase.5. The article of claim 1 , wherein the first thermoset resin is a solid epoxy resin.6. The article of claim 1 , wherein the second thermoset resin is a liquid epoxy resin.7. The article of claim 1 , wherein the thermoset resins are selected so that the article is non-tacky at a temperature of about 25° C.8. The article of claim 1 , wherein the thermoset resins are selected so that the article is non-tacky at storage temperature from about −30° C. to about 40° C. The present application claims the benefit of U.S. Provisional Patent Application No. 61/599,068 (filed on Feb. 15, 2012) which is hereby incorporated by reference in its entirety for all purposes.Composite materials including thermoset resins and fibers have been employed in manufacturing of specialty articles. The processes using these materials are generally labor intensive and require long curing times. Although such processes may be suitable for ...

Method for additive manufacturing

An additive elastomeric manufactured part having an elongation at break of at least 50% may be made by a method comprising the following. A material comprising a prepolymer and filler is first dispensed through a nozzle to form an extrudate deposited on a base. The base, nozzle or combination thereof is moved while dispensing the material so that there is horizontal displacement between the base and nozzle in a predetermined pattern to form an initial layer of the material on the base. Subsequent layers are then formed on the initial layer by repeating the dispensing and movement on top of the initial layer and layers that follow.

Thermoset additive manufactured articles incorporating a phase change material and method to make them

An additive manufactured article is comprised of at least two adhered layers of extrudates ( 120 ) comprised of a thermoset material having therein a phase change material, wherein the phase change material undergoes a phase change at a temperature less than where the thermoset material decomposes. The article may be made by dispensing a mixture comprised of an organic reactive material and phase change material forming extrudates that are 3D printed into an article having multiple layers of extrudates bound together and then allowing the organic reactive material to react forming a thermoset material having therein the phase change material to form the additive manufactured article. The shape of the article may be changed by heating to a temperature above the temperature where the phase change material undergoes a phase change while applying a force and then cooling below the phase change temperature. Likewise, the original shape may be returned by merely heating above the phase change temperature and then cooling in the absence of a force being applied.

Process for Forming a Powder

The present disclosure provides a process. The process includes (i) melt blending, in an extruder, (a) a polyolefin phase and (b) an aqueous phase in the presence of (c) at least one dispersant selected from an acrylic dispersant, a poloxamer dispersant, and combinations thereof; (ii) producing an interfacial tension from 0.1 dynes/cm to 25 dynes/cm; (iii) forming a polyolefin aqueous dispersion having from 25 wt % to 90 wt % solids content of dispersion; and (iv) removing the water from the polyolefin aqueous dispersion to form a powder. The powder has a mean volume average particle size from 10 μm to 300 μm, a sphericity from 0.92 to 1.0, a particle size distribution from 1 to less than 2, and a particle density from 98% to 100%. 1. A process comprising:(i) melt blending, in an extruder, (a) a polyolefin phase and (b) an aqueous phase in the presence of (c) at least one dispersant selected from the group consisting of an acrylic dispersant, a poloxamer dispersant, and combinations thereof;(ii) producing an interfacial tension from 0.1 dynes/cm to 25 dynes/cm;(iii) forming a polyolefin aqueous dispersion having from 25 wt % to 90 wt % solids content of dispersion;(iv) removing the water from the polyolefin aqueous dispersion to form a powder, the powder having a mean volume average particle size from 10 μm to 300 μm, a sphericity from 0.92 to 1.0, a particle size distribution from 1 to less than 2, and a particle density from 98% to 100%.2. The process of wherein the polyolefin phase has a melt index from 0.1 g/10 min to 1 claim 1 ,000 g/10 min.3. The process of comprising maintaining claim 2 , during the melt blending claim 2 , a polyolefin phase to aqueous phase viscosity ratio from 1:1 to 20:1.4. The process of comprising performing the melt blending in a twin screw extruder; and{'sup': −1', '−1, 'subjecting the polyolefin aqueous dispersion to a shear rate from 10 sto 10,000 s.'}5. The process of comprising forming the aqueous polyolefin dispersion at a ...

SELECTIVE SINTERING ADDITIVE MANUFACTURING METHOD AND POWDER USED THEREIN

A method of selective sintering additive manufacturing comprises employing a powder comprising composite particulates comprising a first thermoplastic polymer and a second thermoplastic polymer interspersed with each other. In a particular embodiment, the first thermoplastic polymer and second thermoplastic polymer have differing absorbance of the irradiation used to sinter the particles when performing the additive manufacturing method. The first and second thermoplastic polymer may be continuously intertwined in within the particles or one of the polymers may be a discontinuously dispersed in a continuous matrix of the other polymer. 1. A method of selective sintering additive manufacturing comprising ,(i) providing a powder comprising composite particulates comprising a first thermoplastic polymer and a second thermoplastic polymer interspersed with each other, wherein the first thermoplastic polymer and second thermoplastic polymer interspersed within the composite particulates has a median grain or feature size that is less than 5 micrometers,(ii) depositing a layer of said powder at a target surface,(iii) irradiating a selected portion of said powder so that said powder sinters, bonding the composite particles of said portion within the layer to form a sintered layer,(iv) repeating steps (i) to (iii) to form successive sintered layers that are also bonded to one another, and(v) removing the unhonded portions of the powder to yield an additive manufactured part.2. (canceled)3. The method of either claim 1 , wherein the absorbance of the first thermoplastic polymer is at most 2 AU per mm of film thickness and the absorbance of the second thermoplastic polymer is at least 5 AU per mm of film thickness.4. (canceled)5. The method of claim 1 , wherein the feature or grain size is at least 0.05 micrometer.6. (canceled)7. (canceled)8. The method of claim 1 , wherein claim 1 , in the composite particulates claim 1 , the second thermoplastic is a continuous matrix and ...

Method of making a grease thickener and the thickener made by the method

A continuous process for producing a polyurea concentrate or powder. The process includes combing at least one amine and an isocayante in the presence of a liquid diluent or a base oil in a rotor stator mixer. The concentrate comprises a polyurea in a base oil wherein the concentration of from about 20 weight percent to about 50, or 40 or 35 or 30 weight percent of polyurea based on total weight of grease thickener. The powder has particle size of 2 to 400 microns. This concentrate or powder can then be formulated by grease manufacturers to the desired final properties without the need for handling of the isocyanate and amine raw materials

METHOD FOR ADDITIVE MANUFACTURING

An additive elastomeric manufactured part having an elongation at break of at least 50% may be made by a method comprising the following. A material comprising a prepolymer and filler is first dispensed through a nozzle to form an extrudate deposited on a base. The base, nozzle or combination thereof is moved while dispensing the material so that there is horizontal displacement between the base and nozzle in a predetermined pattern to form an initial layer of the material on the base. Subsequent layers are then formed on the initial layer by repeating the dispensing and movement on top of the initial layer and layers that follow.

Process for Forming a Powder

The present disclosure provides a process including providing a polyolefin aqueous dispersion having (50) to (90) wt % solids content of dispersion, the polyolefin aqueous dispersion containing solid particles containing a polyolefin including an ethylene-based polymer having a melting temperature from greater than (115)° C. to (140)° C., polyolefin wax, acrylic dispersant; and an aqueous phase including excess acrylic dispersant; adding diluting water to form a diluted polyolefin aqueous dispersion having (5) to less than (50) wt % solids content; collecting the solid particles; washing the solid particles with a washing agent to remove the excess acrylic dispersant; and removing the washing agent to form a powder having a mean volume average particle size from (10) to (300) μm, a sphericity from (0.92) to (1.0), a particle size distribution from (1) to less than (2), a particle density from (98)% to (100)%, and a flow rate in a large funnel from (1) to (5) seconds. 1. A process comprising: [ a polyolefin comprising an ethylene-based polymer having a melting temperature from greater than 115° C. to 140° C.;', 'a polyolefin wax;', 'an acrylic dispersant;, '(a) solid particles comprising'}, '(b) an aqueous phase comprising excess acrylic dispersant;, '(i) providing a polyolefin aqueous dispersion having from 50 wt % to 90 wt % solids content of dispersion, the polyolefin aqueous dispersion comprising'}(ii) adding diluting water to the polyolefin aqueous dispersion to form a diluted polyolefin aqueous dispersion having from 5 wt % to less than 50 wt % solids content of dispersion;(iii) collecting the solid particles from the diluted polyolefin aqueous dispersion;(iv) washing the solid particles with a washing agent to remove the excess acrylic dispersant; and(v) removing the washing agent to form a powder, the powder having a mean volume average particle size from 10 μm to 300 μm, a sphericity from 0.92 to 1.0, a particle size distribution from 1 to less than 2, a ...

Electrochromic display device and compositions useful in making such devices

The present invention relates to a composition and to a display device having the composition positioned between electrodes. The composition contains : (a) a compound that undergoes a reversible redox reaction to generate a pH gradient between the two electrodes, (b) an indicator dye, (c) a charge transport material, and optionally, (d) a matrix material and (e) an opacifier, and (f) secondary redox couple wherein components (a), (b), and (c) are different from one another and the standard reduction potential of component (a) is less than the standard reduction potential for the other components. Depending on the electric field present between the electrodes, a display image may be generated.

Flotation separation aid useful for collection of mineral ore fines

Embodiments relate to methods for improving the effectiveness of froth flotation separation processes, especially for the mining industry. In particular, a method of improving the removal of a particular material from a comminuted mineral ore by a flotation separation process by the addition of a thermoplastic polymer dispersion.

Process for removal of contaminants from contaminated thermoplastic

A method for reducing an amount of a contaminant in a thermoplastic polymer comprising shearing a combination comprising a contaminated thermoplastic polymer in melt form, water, and a dispersing agent where the shearing causes a portion of the contaminant to be removed from the contaminated thermoplastic polymer (e.g. moved into an aqueous phase with the water or into another separate phase from the water and the polymer), and after shearing, separating the thermoplastic from the aqueous phase to recover thermoplastic polymer.

Proceso para formar un polvo.

La presente descripción proporciona un proceso que incluye proporcionar una dispersión acuosa de poliolefina que tiene un 50 a 90% en peso de contenido de sólidos de dispersión, la dispersión acuosa de poliolefina que contiene partículas sólidas que contienen una poliolefina que incluye un polímero basado en etileno que tiene una temperatura de fusión de más de 115°C a 140°C, cera de poliolefina, dispersante acrílico; y una fase acuosa que incluye un exceso de dispersante acrílico; adición de agua diluida para formar una dispersión acuosa de poliolefina diluida que tiene 5 a menos de 50% en peso de contenido de sólidos; recoger las partículas sólidas; lavar las partículas sólidas con un agente de lavado para eliminar el exceso de dispersante acrílico; y la eliminación del agente de lavado para formar un polvo que tiene un tamaño de partícula promedio en volumen de 10 a 300 µm, una esfericidad de 0.92 a 1.0, una distribución de tamaño de partícula de 1 a menos de 2, una densidad de partículas de 98% a 100%, y un caudal en un membudo grande de 1 a 5 segundos.

Process for forming a powder

The present disclosure provides a process. The process includes (i) melt blending, in an extruder, (a) a polyolefin phase and (b) an aqueous phase in the presence of (c) at least one dispersant selected from an acrylic dispersant, a poloxamer dispersant, and combinations thereof; (ii) producing an interfacial tension from 0.1 dynes/cm to 25 dynes/cm; (iii) forming a polyolefin aqueous dispersion having from 25 wt% to 90 wt% solids content of dispersion; and (iv) removing the water from the polyolefin aqueous dispersion to form a powder. The powder has a mean volume average particle size from 10 μm to 300 μm, a sphericity from 0.92 to 1.0, a particle size distribution from 1 to less than 2, and a particle density from 98% to 100%.

Process for forming a powder

The present disclosure provides a process including providing a polyolefin aqueous dispersion having (50) to (90) wt% solids content of dispersion, the polyolefin aqueous dispersion containing solid particles containing a polyolefin including an ethylene-based polymer having a melting temperature from greater than (115)°Cto (140)°C, polyolefin wax, acrylic dispersant; and an aqueous phase including excess acrylic dispersant; adding diluting water to form a diluted polyolefin aqueous dispersion having (5) to less than (50) wt% solids content; collecting the solid particles; washing the solid particles with a washing agent to remove the excess acrylic dispersant; and removing the washing agent to form a powder having a mean volume average particle size from (10) to (300) μιη, a sphericity from (0.92) to (1.0), a particle size distribution from (1) to less than (2), a particle density from (98) % to (100) %, and a flow rate in a large funnel from (1) to (5) seconds.

Process for forming a rotational molded article

The present disclosure provides a process. The process includes providing a blend containing (A) a first powder including (i) a polyolefin having a density from 0.860 g/cc to 0.910 g/cc, and a melt index from 1.5 g/10 min to 1,000 g/10 min; (ii) from 1 wt% to 15 wt% of a dispersant selected from an acrylic dispersant, a poloxamer, and combinations thereof; and (iii) optionally, a polyolefin wax, the first powder having a mean volume average particle size from 1 µm to 300 µm; and (B) a second powder including an ethylene/α-olefin copolymer having (i) a density from 0.920 g/cc to 0.955 g/cc; and (ii) a melt index from 1.0 g/10 min to 15 g/10 min, the second powder having a mean volume average particle size from 325 µm to 4,000 µm; and rotational molding the blend to form a rotational molded article.

Process for forming a powder

The present disclosure provides a process. The process includes (i) melt blending, in an extruder, (a) a polyolefin phase and (b) an aqueous phase in the presence of (c) at least one dispersant selected from an acrylic dispersant, a poloxamer dispersant, and combinations thereof; (ii) producing an interfacial tension from 0.1 dynes/cm to 25 dynes/cm; (iii) forming a polyolefin aqueous dispersion having from 25 wt % to 90 wt % solids content of dispersion; and (iv) removing the water from the polyolefin aqueous dispersion to form a powder. The powder has a mean volume average particle size from 10 μm to 300 μm, a sphericity from 0.92 to 1.0, a particle size distribution from 1 to less than 2, and a particle density from 98% to 100%.

PROCESS TO FORM A POWDER

La presente divulgación proporciona un proceso. El proceso incluye (i) mezclar por fusión, en una extrusora, (a) una fase de poliolefina y (b) una fase acuosa en presencia de (c) al menos un dispersante seleccionado de un dispersante acrílico, un dispersante de poloxámero y combinaciones de estos; (ii) producir una tensión interfacial que va de 0,1 dinas/cm. a 25 dinas/cm.; (iii) formar una dispersión acuosa de poliolefina que tiene de 25% en peso a 90% en peso de contenido de sólidos de dispersión; y (iv) eliminar el agua de la dispersión acuosa de poliolefina para formar un polvo. El polvo tiene un tamaño de partícula promedio en volumen medio que va de 10 mm a 300 mm, una esfericidad que va de 0,92 a 1,0, una distribución de tamaño de partícula que va de 1 a menos de 2 y una densidad de partícula que va de 98% a 100%. This disclosure provides a process. The process includes (i) melt mixing, in an extruder, (a) a polyolefin phase and (b) an aqueous phase in the presence of (c) at least one dispersant selected from an acrylic dispersant, a poloxamer dispersant, and combinations of these; (ii) produce an interfacial tension ranging from 0.1 dynes / cm. at 25 dynes / cm .; (iii) forming an aqueous polyolefin dispersion having from 25% by weight to 90% by weight of dispersion solids content; and (iv) removing water from the aqueous polyolefin dispersion to form a powder. The powder has a volume average particle size ranging from 10mm to 300mm, a sphericity ranging from 0.92 to 1.0, a particle size distribution ranging from 1 to less than 2, and a density particle size ranging from 98% to 100%.

Composites for cured-in-place pipe

Embodiments of the present disclosure include flexible impregnated articles, composites produced by curing such flexible impregnated article, and processes for forming flexible impregnated articles. The flexible impregnated articles, composites, and processes can be used as alternatives to articles, composites, and processes in a cured-in-place pipe rehabilitation process that include epoxy resins, thus eliminating toxicity issues associated with the use of epoxy resins. The instantly-disclosed flexible impregnated articles, composites, and processes can be particularly useful for the CIPP process in potable water pipe and pressure pipe applications.

Pre-molding article from thermoset polymer dispersions

The invention is directed at new process and systems for preparing composite materials that include a polymer phase and a fiber phase.

Premolding article from thermoset and thermoplastic polymer dispersions

The invention is directed at new process and systems for preparing composite materials that include a polymer phase and a fiber phase.

Manufacture of composite dispersion based resin-infused random fiber mat

A method of preparing a resin infused random fiber mat including the step of forming a liquid dispersion mat of polymeric resin and fiber on a porous substrate.

Premolding article from thermoset and thermoplastic polymer dispersions

The invention is directed at new process and systems for preparing composite materials that include a polymer phase and a fiber phase.

Selective sintering additive manufacturing method and powder used therein

A method of selective sintering additive manufacturing comprises employing a powder comprising composite particulates comprising a first thermoplastic polymer and a second thermoplastic polymer interspersed with each other. In a particular embodiment, the first thermoplastic polymer and second thermoplastic polymer have differing absorbance of the irradiation used to sinter the particles when performing the additive manufacturing method. The first and second thermoplastic polymer may be continuously intertwined in within the particles or one of the polymers may be a discontinuously dispersed in a continuous matrix of the other polymer.

Fused filament fabrication manufacturing method and polymer blend used therein

A method of fused filament fabrication (FFF) additive manufacturing comprises employing a thermoplastic blend comprised of high density polyethylene and a second thermoplastic polymer, wherein the second polymer is a low density polyethylene (LDPE), functionalized polyolefin or combination thereof and the amount of high density polyethylene to the amount of second thermoplastic polymer by weight is a ratio from 1.5/1 to 20/1. LDPE means a polyethylene that have been radically polymerized at high pressure. The method allows for the additive manufacturing article that retains the desirable mechanical properties of HDPE without experiencing the problems inherent in FFF printing of HDPE or use of solid fillers. In a particular embodiment, the additive manufactured article has a continuous phase and the second thermoplastic polymer is present as a discontinuous phase within the additive article manufactured article and the filament used to make the article.

Manufacture of composite dispersion based resin-infused random fiber mat

A method of preparing a resin infused random fiber mat including the step of forming a liquid dispersion mat of polymeric resin and fiber on a porous substrate.

Electrochromic display device and compositions useful in making such devices

The present invention relates to a composition and to a display device having the composition positioned between electrodes. The composition contains : (a) a compound that undergoes a reversible redox reaction to generate a pH gradient between the two electrodes, (b) an indicator dye, (c) a charge transport material, and optionally, (d) a matrix material and (e) an opacifier, and (f) secondary redox couple wherein components (a), (b), and (c) are different from one another and the standard reduction potential of component (a) is less than the standard reduction potential for the other components. Depending on the electric field present between the electrodes, a display image may be generated.

Electrochromic display device and compositions useful in making such devices

Electrochromic display device and compositions useful in making such devices

The present invention relates to a composition and to a display device having the composition positioned between electrodes. The composition contains : (a) a compound that undergoes a reversible redox reaction to generate a pH gradient between the two electrodes, (b) an indicator dye, (c) a charge transport material, and optionally, (d) a matrix material and (e) an opacifier, and (f) secondary redox couple wherein components (a), (b), and (c) are different from one another and the standard reduction potential of component (a) is less than the standard reduction potential for the other components. Depending on the electric field present between the electrodes, a display image may be generated.

Electrochromic display device and compositions useful in making such devices

The present invention relates to a composition and to a display device having the composition positioned between electrodes. The composition contains : (a) a compound that undergoes a reversible redox reaction to generate a pH gradient between the two electrodes, (b) an indicator dye, (c) a charge transport material, and optionally, (d) a matrix material and (e) an opacifier, and (f) secondary redox couple wherein components (a), (b), and (c) are different from one another and the standard reduction potential of component (a) is less than the standard reduction potential for the other components. Depending on the electric field present between the electrodes, a display image may be generated.

Electrochromic display device and compositions useful in making such devices

The present invention relates to a composition and to a display device having the composition positioned between electrodes. The composition contains: (a) a compound that undergoes a reversible redox reaction to generate a pH gradient between the two electrodes, (b) an indicator dye, (c) a charge transport material, and optionally, (d) a matrix material and (e) an opacifier, and (f) secondary redox couple wherein components (a), (b), and (c) are different from one another and the standard reduction potential of component (a) is less than the standard reduction potential for the other components. Depending on the electric field present between the electrodes, a display image may be generated.

Electrochromic display device and compositions useful in making such devices

Electrochromic display device and compositions useful in making such devices

Process for forming a rotational molded article

The present disclosure provides a process. The process includes providing a blend containing (A) a first powder including (i) a polyolefin having a density from 0.860 g/cc to 0.910 g/cc, and a melt index from 1.5 g/10 min to 1,000 g/10 min; (ii) from 1 wt% to 15 wt% of a dispersant selected from an acrylic dispersant, a poloxamer, and combinations thereof; and (iii) optionally, a polyolefin wax, the first powder having a mean volume average particle size from 1 µm to 300 µm; and (B) a second powder including an ethylene/α-olefin copolymer having (i) a density from 0.920 g/cc to 0.955 g/cc; and (ii) a melt index from 1.0 g/10 min to 15 g/10 min, the second powder having a mean volume average particle size from 325 µm to 4,000 µm; and rotational molding the blend to form a rotational molded article.

Process for forming a powder

The present disclosure provides a process including providing a polyolefin aqueous dispersion having (50) to (90) wt% solids content of dispersion, the polyolefin aqueous dispersion containing solid particles containing a polyolefin including an ethylene-based polymer having a melting temperature from greater than (115)°Cto (140)°C, polyolefin wax, acrylic dispersant; and an aqueous phase including excess acrylic dispersant; adding diluting water to form a diluted polyolefin aqueous dispersion having (5) to less than (50) wt% solids content; collecting the solid particles; washing the solid particles with a washing agent to remove the excess acrylic dispersant; and removing the washing agent to form a powder having a mean volume average particle size from (10) to (300) µ??, a sphericity from (0.92) to (1.0), a particle size distribution from (1) to less than (2), a particle density from (98) % to (100) %, and a flow rate in a large funnel from (1) to (5) seconds.

Process for forming a powder

The present disclosure provides a process. The process includes (i) melt blending, in an extruder, (a) a polyolefin phase and (b) an aqueous phase in the presence of (c) at least one dispersant selected from an acrylic dispersant, a poloxamer dispersant, and combinations thereof; (ii) producing an interfacial tension from 0.1 dynes/cm to 25 dynes/cm; (iii) forming a polyolefin aqueous dispersion having from 25 wt% to 90 wt% solids content of dispersion; and (iv) removing the water from the polyolefin aqueous dispersion to form a powder. The powder has a mean volume average particle size from 10 µm to 300 µm, a sphericity from 0.92 to 1.0, a particle size distribution from 1 to less than 2, and a particle density from 98% to 100%.

composites for on-site cured pipes

as modalidades da presente divulgação incluem artigos impregnados flexíveis, compósitos produzidos pela cura de tal artigo impregnado flexível e processos para formar artigos impregnados flexíveis. os artigos flexíveis impregnados, compósitos e processos podem ser usados como alternativas para os artigos, compósitos e processos em um processo de reabilitação de tubulações curadas no local que incluem resinas epóxi, eliminando assim problemas de toxicidade associados ao uso de resinas epóxi. os artigos, compósitos e processos impregnados flexíveis, presentemente divulgados, podem ser particularmente úteis para o processo de cipp em aplicações de tubulação de água potável e tubulações de pressão. embodiments of the present disclosure include flexible impregnated articles, composites produced by curing such flexible impregnated article and processes for forming flexible impregnated articles. Impregnated flexible articles, composites and processes can be used as alternatives to articles, composites and processes in a site cured pipe rehabilitation process that includes epoxy resins, thus eliminating toxicity problems associated with the use of epoxy resins. The presently disclosed flexible impregnated articles, composites and processes may be particularly useful for the cipp process in potable water and pressure piping applications.

PROCESS TO FORM A POWDER

La presente descripción proporciona un proceso que incluye proporcionar una dispersión acuosa de poliolefina que tiene un 50 a 90% en peso de contenido de sólidos de dispersión, la dispersión acuosa de poliolefina que contiene partículas sólidas que contienen una poliolefina que incluye un polímero basado en etileno que tiene una temperatura de fusión de más de 115ºC a 140ºC, cera de poliolefina, dispersante acrílico; y una fase acuosa que incluye un exceso de dispersante acrílico; adición de agua diluida para formar una dispersión acuosa de poliolefina diluida que tiene 5 a menos de 50% en peso de contenido de sólidos; recoger las partículas sólidas; lavar las partículas sólidas con un agente de lavado para eliminar el exceso de dispersante acrílico; y la eliminación del agente de lavado para formar un polvo que tiene un tamaño de partícula promedio en volumen de 10 a 300 mm, una esfericidad de 0.92 a 1.0, una distribución de tamaño de partícula de 1 a menos de 2, una densidad de partículas de 98% a 100%, y un caudal en un embudo grande de 1 a 5 segundos. The present disclosure provides a process that includes providing an aqueous polyolefin dispersion having 50 to 90% by weight dispersion solids content, the aqueous polyolefin dispersion containing solid particles containing a polyolefin including an ethylene-based polymer. having a melting temperature of more than 115 ° C to 140 ° C, polyolefin wax, acrylic dispersant; and an aqueous phase that includes an excess of acrylic dispersant; adding dilute water to form a dilute polyolefin aqueous dispersion having 5 to less than 50% by weight solids content; collect solid particles; washing the solid particles with a washing agent to remove excess acrylic dispersant; and removing the washing agent to form a powder having a volume average particle size of 10 to 300mm, a sphericity of 0.92 to 1.0, a particle size distribution of 1 to less than 2, a particle density 98% to 100%, and a flow rate in a large funnel of 1 to 5 ...

Hydrocarbon solvent stable aqueous pour point depressant dispersion composition

The present invention relates to an aqueous pour point depressant dispersion composition comprising an ethylene vinyl acetate copolymer (EVA); a dispersing agent; a polyethoxylated nonionic surfactant, a low level of hydrocarbon solvent, water; optionally one or more of an aqueous freezing point depressant, a stabilizing agent, or a basic metal substance and a method to use said composition.

Improved composites and methods for conductive transparent substrates

The present invention is directed to a conductive article and method of making the same that includes a substrate (10); a conductive composite (14) including a conductive material in a matrix that includes one or more film forming resins having at least one functional group capable of polymerization; one or more adhesion promoters; and one or more compounds, which are reactive with the film forming resin and which also contain at least one acidic moiety.

Premolding article from thermoset and thermoplastic polymer dispersions

The invention is directed at new process and systems for preparing composite materials that include a polymer phase and a fiber phase.

Fused filament fabrication manufacturing method and polymer blend used therein

A method of fused filament fabrication (FFF) additive manufacturing comprises employing a thermoplastic blend comprised of high density polyethylene and a second thermoplastic polymer, wherein the second polymer is a low density polyethylene (LDPE), functionalized polyolefin or combination thereof and the amount of high density polyethylene to the amount of second thermoplastic polymer by weight is a ratio from 1.5/1 to 20/1. LDPE means a polyethylene that have been radically polymerized at high pressure. The method allows for the additive manufacturing article that retains the desirable mechanical properties of HDPE without experiencing the problems inherent in FFF printing of HDPE or use of solid fillers. In a particular embodiment, the additive manufactured article has a continuous phase and the second thermoplastic polymer is present as a discontinuous phase within the additive article manufactured article and the filament used to make the article.

Flexible polyurethane foam having prolonged recovery time.

Los tiempos de recuperación y/o el flujo de aire de la espuma de poliuretano flexible aumentan al incluir determinados agentes de pegajosidad en la formulación de la espuma. Los agentes de pegajosidad se forman en una emulsión que incluye un poliéter que contiene grupos oxietileno, un tensioactivo no iónico y determinadas partículas de sílice pirógena, negro de humo o talco.

Flexible polyurethane foam having prolonged recovery time

Recovery times and/or airflow of flexible polyurethane foam is increased by including certain tackifiers in the foam formulation. The tackifiers are formed into an emulsion that includes a polyether containing oxyethylene groups, a nonionic surfactant and certain fumed silica, carbon black or talc particles.

Composite transparent pressure sensing film

提供一種複合透明壓力感測膜，其係具有基質聚合物，其中，該基質聚合物係25至75wt%之烷基纖維素與75至25wt%之聚矽氧烷的組合；以及，複數個混成顆粒，其中，該複數個混成顆粒中每一混成顆粒係包含以無機粘著劑結合在一起之初級顆粒；其中，該複數個混成顆粒係設置於該基質聚合物中；其中，該複合透明壓力感測膜之電阻率可因應所施加之壓力而改變，該壓力係具有沿著該複合透明壓力感測膜之厚度方向引導之z-分量，使得該電阻率係因應所施加壓力之z-分量而降低。

Bisdithiocarbamate fungicide stabilization

A composition comprising at least one bisdithiocarbamate fungicide and at least one zinc additive is provided. Processes related thereto are also provided.

Transparent pressure sensing film composition

A transparent pressure sensing film composition is provided having a matrix polymer; and, a plurality of conductive particles; wherein the matrix polymer comprises 25 to 100 wt％ of an alkyl cellulose; and, wherein an electrical resistivity of the transparent pressure sensing film is variable in response to an applied pressure having a z-component directed along the thickness of the transparent pressure sensing film such that the electrical resistivity is reduced in response to the z-component of the applied pressure.

Flexible polyurethane foam having prolonged recovery time

Recovery times and/or airflow of flexible polyurethane foam is increased by including certain tackifiers in the foam formulation. The tackifiers are characterized in being incompatible with polyol or polyol mixture used to make the foam, having a viscosity of at least 5,000 centipoise at 25 #C and having a glass transition temperature of at most 20 #C. The tackifier is pre-blended with certain monols to form a lower-viscosity blend that is combined with one or more other polyols and a polyisocyanate to form a reaction mixture for producing a polyurethane foam.

Composite transparent pressure sensing film

A composite transparent pressure sensing film is provided having a matrix polymer wherein the matrix polymer is a combination of 25 to 75 wt％of an alkyl cellulose and 75 to 25 wt％of a polysiloxane; and, a plurality of hybrid particles, wherein each hybrid particle in the plurality of hybrid particles, comprises a plurality of primary particles bonded together with an inorganic binder; wherein the plurality of hybrid particles are disposed in the matrix polymer; wherein an electrical resistivity of the composite transparent pressure sensing film is variable in response to an applied pressure having a z-component directed along the thickness of the composite transparent pressure sensing film such that the electrical resistivity is reduced in response to the z-component of the applied pressure.

Corrosion testing apparatus and method

The present invention relates to an apparatus and method as described in the specification and drawings for parallel high throughput corrosion testing and electroplating testing of test coupons.

METHOD FOR REDUCING AN AMOUNT OF A CONTAMINANT IN A THERMOPLASTIC POLYMER

MÉTODO PARA REDUZIR UMA QUANTIDADE DE UM CONTAMINANTE EM UM POLÍMERO TERMOPLÁSTICO. Um método para reduzir uma quantidade de um contaminante em um polímero termoplástico compreendendo o cisalhamento de uma combinação compreendendo um polímero termoplástico contaminado em forma fundida, água e um agente dispersante onde o cisalhamento faz com que uma porção do contaminante seja removida do polímero termoplástico contaminado ( por exemplo, movido para uma fase aquosa com a água ou para outra fase separada da água e do polímero), e após cisalhamento, separação do termoplástico da fase aquosa para recuperar o polímero termoplástico. METHOD FOR REDUCING AN AMOUNT OF A CONTAMINANT IN A THERMOPLASTIC POLYMER. A method for reducing an amount of a contaminant in a thermoplastic polymer comprising shearing a combination comprising a contaminated thermoplastic polymer in molten form, water and a dispersing agent where the shear causes a portion of the contaminant to be removed from the contaminated thermoplastic polymer ( e.g., moved into an aqueous phase with water or another phase separate from water and polymer), and after shearing, separating the thermoplastic from the aqueous phase to recover the thermoplastic polymer.

process to form a powder

A presente divulgação se refere a um processo que inclui fornecer uma dispersão aquosa de poliolefina com (50) a (90)% em peso de teor de sólidos da dispersão, em que a dispersão aquosa de poliolefina contém partículas sólidas que contêm uma poliolefina incluindo um polímero à base de etileno com uma temperatura de fusão mais alta do que (115) °C a (140) °C, cera de poliolefina, dispersante acrílico; e uma fase aquosa incluindo dispersante acrílico em excesso; adicionar água de diluição para formar uma dispersão aquosa de poliolefina diluída com (5) a menos do que (50)% em peso de teor de sólidos; coletar as partículas sólidas; lavar as partículas sólidas com um agente de lavagem para remover o dispersante acrílico em excesso; e remover o agente de lavagem para formar um pó com um tamanho médio de partícula de volume médio de (10) a (300) µm, uma esfericidade de (0,92) a (1,0), uma distribuição de tamanho de partícula de (1) a menos do que (2), uma densidade de partícula de (98)% a (100)% e uma taxa de fluxo em um funil grande de (1) a (5) segundos. The present disclosure relates to a process which includes providing an aqueous polyolefin dispersion with (50) to (90) wt.% Solids content of the dispersion, wherein the aqueous polyolefin dispersion contains solid particles containing a polyolefin including a ethylene-based polymer with a melting temperature higher than (115) ° C to (140) ° C, polyolefin wax, acrylic dispersant; and an aqueous phase including excess acrylic dispersant; adding dilution water to form an aqueous dispersion of polyolefin diluted with (5) less than (50)% by weight of solids content; collect solid particles; washing the solid particles with a washing agent to remove excess acrylic dispersant; and removing the washing agent to form a powder with an average particle size with an average volume of (10) to (300) µm, a sphericity of (0.92) to (1.0), a particle size distribution from (1) less than (2), a particle density of (98)% to (100)% and a ...

Fused filament fabrication manufacturing method and polymer blend used therein

A method of fused filament fabrication (FFF) additive manufacturing comprises employing a thermoplastic blend comprised of high density polyethylene and a second thermoplastic polymer, wherein the second polymer is a low density polyethylene (LDPE), functionalized polyolefin or combination thereof and the amount of high density polyethylene to the amount of second thermoplastic polymer by weight is a ratio from 1.5/1 to 20/1. LDPE means a polyethylene that have been radically polymerized at high pressure. The method allows for the additive manufacturing article that retains the desirable mechanical properties of HDPE without experiencing the problems inherent in FFF printing of HDPE or use of solid fillers. In a particular embodiment, the additive manufactured article has a continuous phase and the second thermoplastic polymer is present as a discontinuous phase within the additive article manufactured article and the filament used to make the article.

Recovery of additive manufacturing support materials

The inventions is directed to a method for recovering support materials used in an additive manufacturing process. The method comprises exposing a precursor additive manufactured article comprised of a water soluble support polymer and an insoluble material to water. The water soluble support polymer is dissolved in the water. The remaining article is then removed from the water. The dissolved water soluble polymer is precipitated from the water. The precipitated polymer is separated from the water and any remaining water removed to recover the water soluble support polymer. The recovered water soluble support polymer may then be re-used to make further additive manufactured articles.

método para fazer um agente espessante de graxa e o agente espessante feito pelo método

MÉTODO PARA FAZER UM AGENTE ESPESSANTE DE GRAXA E O AGENTE ESPESSANTE FEITO PELO MÉTODO. Trata-se de um processo contínuo para a produção de um concentrado ou pó de poliureia. O processo inclui combinar, pelo menos, uma amina e um isocianato na presença de um diluente líquido ou de um óleo-base em um misturador do tipo estator/rotor. O concentrado compreende uma poliureia em um óleo-base em que a concentração é de cerca de 20 por cento em peso a cerca de 50, ou 40, ou 35 ou 30 por cento em peso de poliureia com base no peso total do agente espessante de graxa. O pó tem o tamanho de partícula de 2 a 400 mícrons. Este concentrado ou pó pode, então, ser formulado pelos fabricantes de graxa para as propriedades finais desejadas, sem a necessidade de manipulação do isocianato e das matérias-primas de amina.

Process for forming a powder

The present disclosure provides a process. The process includes (i) melt blending, in an extruder, (a) a polyolefin phase and (b) an aqueous phase in the presence of (c) at least one dispersant selected from an acrylic dispersant, a poloxamer dispersant, and combinations thereof; (ii) producing an interfacial tension from 0.1 dynes/cm to 25 dynes/cm; (iii) forming a polyolefin aqueous dispersion having from 25 wt% to 90 wt% solids content of dispersion; and (iv) removing the water from the polyolefin aqueous dispersion to form a powder. The powder has a mean volume average particle size from 10 μm to 300 μm, a sphericity from 0.92 to 1.0, a particle size distribution from 1 to less than 2, and a particle density from 98% to 100%.

Selective sintering additive manufacturing method and powder used therein

Flexible polyurethane foam having prolonged recovery time

Recovery times and/or airflow of flexible polyurethane foam is increased by including certain tackifiers in the foam formulation. The tackifiers are characterized in being incompatible with polyol or polyol mixture used to make the foam, having a viscosity of at least 5,000 centipoise at 25⁰C and having a glass transition temperature of at most 20⁰C. The tackifier is pre-blended with certain monols to form a lower-viscosity blend that is combined with one or more other polyols and a polyisocyanate to form a reaction mixture for producing a polyurethane foam.

Dispersão aquosa do ionômero, método para fabricar uma dispersão aquosa de ionômero, método para formar um artigo revestido e artigo revestido

DISPERSÃO AQUOSA DE IONÔMERO, MÉTODO PARA FABRICAR UMA DISPERSÃO AQUOSA DE IONÔMERO, MÉTODO PARA FORMAR UM ARTIGO REVESTIDO E ARTIGO REVESTIDO. Trata-se de uma dispersão aquosa de ionômero e método para fabricação da mesma, que compreende uma composição de ionômero e água, em que a composição de ionômero compreende: a) pelo menos 20% em peso, com base na porcentagem em peso total da composição de ionômero, de um ionômero; e b) até 80% em peso, com base na porcentagem em peso total da composição de ionômero, de uma poliolefina.

Processo e pó

a presente revelação fornece um processo. o processo inclui (i) mesclar por fusão, em uma extrusora, (a) uma fase de poliolefina e (b) uma fase aquosa na presença de (c) pelo menos um dispersante selecionado a partir de um dispersante acrílico, um dispersante de poloxâmero, e combinações dos mesmos; (ii) produzir uma tensão interfacial de 0,0001 n/m (0,1 dina/cm) a 0,025 n/m (25 dina/cm); (iii) formar uma dispersão aquosa de poliolefina que tem um teor de sólidos de 25% em peso a 90% em peso de dispersão; e (iv) remover a água da dispersão aquosa de poliolefina para formar um pó. o pó tem um tamanho médio de partícula com volume mediano de 10 µm a 300 µm, uma esfericidade de 0,92 a 1,0, uma distribuição de tamanho de partícula de 1 a menos que 2 e uma densidade de partícula de 98% a 100%.

Processo para fornecer uma mistura, e, artigo moldado por rotação

PROCESSO PARA FORNECER UMA MISTURA, E, ARTIGO MOLDADO POR ROTAÇÃO . A presente divulgação fornece um processo. O processo inclui fornecer uma mistura contendo (A) um primeiro pó incluindo (i) uma poliolefina tendo uma densidade de 0,860 g/cc a 0,910 g/cc e um índice de fusão de 1,5 g/10 min. a 1.000 g/10 min.; (ii) de 1% em peso a 15% em peso de um dispersante selecionado de um dispersante acrílico, um poloxâmero e combinações dos mesmos; e (iii) opcionalmente, uma cera de poliolefina, o primeiro pó tendo um tamanho de partícula médio de volume médio de 1 μm a 300 μm; e (B) um segundo pó incluindo um copolímero de etileno/a-olefina tendo (i) uma densidade de 0,920 g/cc a 0,955 g/cc; e (ii) um índice de fusão de 1,0 g/10 min. a 15 g/10 min., o segundo pó tendo um tamanho de partícula médio de volume médio de 325 μm a 4.000 μm; e moldar por rotação a mistura para formar um artigo moldado por rotação.

Process for forming a rotational molded article and rotational molded article

Estabilizacion de fungicida de bisditiocarbamato

1.- Una composición que comprende: (a) por lo menos un fungicida de bisditiocarbamato; y (b) por lo menos un estabilizador seleccionado del grupo que consiste de 1-(hidroximetil)-5,5-dimetilhidantoina, 2,4-pentanodiona, 2-buten-1,4-diol, 4-hidroxi-3-metil-2-butanona, 5-hidroximetil-1-aza-3,7-dioxabiciclo(33.0)octano, acetaldehído, ácido bórico, citrato de calcio, sulfóxido de dimetilo, sal monosódica de ácido glutámico, monohidrato de ácido glioxílico, ácido guanidin-acético, maleimida, malonamida, malononitrilo, N-hidroximetilacetamida, N-hidroximetilftalimida, acetato de poli(oximetileno) bloqueado en su extremo, aldehído pirúvico, urea, citrato de zinc, sulfito de zinc, y mezclas de los mismos. 2.- Un procedimiento para proteger plantas contra hongos, dicho procedimiento comprende aplicar a un sitio una cantidad fungicidamente efectiva de una composición de acuerdo con la reivindicación 4. 3.- Un procedimiento que comprende mezclar: (a) por lo menos un fungicida de bisditiocarbamato; y (b) por lo menos un estabilizador seleccionado dei grupo que consiste de 1-(hidroximetil)-5,5-dimetilhidantoina, 2,4-pentanodiona, 2-buten-1,4-diol, 4-hidroxi-3-metil-2-butanona, 5-hidroximetil-1-aza-3,7-dioxabiciclo (3.3.0)octano, acetaldehído, ácido bórico, citrato de calcio, sulfóxido de dimetilo, sal monosódica de ácido glutámico, monohidrato de ácido glioxílico, ácido guanidin-acético, maleimida, malonamida, malononitrilo, N-hidroximetilacetamida, N-hidroximetilftalimida, acetato de poli(oximetileno) bloqueado en su extremo, aldehído pirúvico, urea, citrato de zinc, sulfito de zinc, y mezclas de los mismos.

Process for forming a powder

The present disclosure provides a process including providing a polyolefin aqueous dispersion having (50) to (90) wt % solids content of dispersion, the polyolefin aqueous dispersion containing solid particles containing a polyolefin including an ethylene-based polymer having a melting temperature from greater than (115)° C. to (140)° C., polyolefin wax, acrylic dispersant; and an aqueous phase including excess acrylic dispersant; adding diluting water to form a diluted polyolefin aqueous dispersion having (5) to less than (50) wt % solids content; collecting the solid particles; washing the solid particles with a washing agent to remove the excess acrylic dispersant; and removing the washing agent to form a powder having a mean volume average particle size from (10) to (300) μm, a sphericity from (0.92) to (1.0), a particle size distribution from (1) to less than (2), a particle density from (98)% to (100)%, and a flow rate in a large funnel from (1) to (5) seconds.

Método para produzir uma espuma flexível de poliuretano e espuma flexível de poliuretano

ESPUMA FLEXIVEL DE POLIURETANO COM TEMPO DE RECUPERAÇÃO PROLONGADO. Os tempos de recuperação e/ou fluxo de ar de espuma flexível de poliuretano são aumentados incluindo determinados acentuadores de pegajosidade na formulação da espuma. Os acentuadores de pegajosidade são caracterizados por serem incompatíveis com o poliol ou a mistura de poliol usada para produzir a espuma, terem uma viscosidade de pelo menos 5 Pa^s (5.000 centipoises) a 25 °C e terem uma temperatura de transição vítrea de no máximo 20 °C. O agente de pegajosidade é pré-mesclado com certos monóis para formar uma mistura de baixa viscosidade que é combinada com um ou mais outros polióis e um poliisocianato para formar uma mistura de reação para produzir uma espuma de poliuretano.

Method of making a grease thickener and the thickener made by the method

A continuous process for producing a polyurea concentrate or powder. The process includes combing at least one amine and an isocayante in the presence of a liquid diluent or a base oil in a rotor stator mixer. The concentrate comprises a polyurea in a base oil wherein the concentration of from about 20 weight percent to about 50, or 40 or 35 or 30 weight percent of polyurea based on total weight of grease thickener. The powder has particle size of 2 to 400 microns. This concentrate or powder can then be formulated by grease manufacturers to the desired final properties without the need for handling of the isocyanate and amine raw materials.

Aqueous ionomeric dispersions, and methods thereof

An aqueous ionomer dispersion, and method of manufacturing thereof, comprising an ionomer composition and water, wherein the ionomer composition comprises: a) at least 20 wt.%, based on the total weight percent of the ionomer composition, of an ionomer; and b) up to 80 wt.%, based on the total weight percent of the ionomer composition, of a polyolefin.

Shutdown Separator

The present disclosure provides an electrochemical cell. In an embodiment, the electrochemical cell includes a separator disposed between an optional anode and an optional cathode. The separator includes (A) a porous substrate and (B) a porous coating layer on the substrate. The porous substrate (A) is composed of an olefin-based polymer having a melting point, Tm, greater than 130° C. The porous coating layer (B) has a melting temperature from 80° C. to 110° C. The porous coating layer (B) is composed of a plurality of microparticles, and an optional binding agent. The microparticles have an average particle size from 0.3 microns to 1.5 microns. The microparticles are composed of (i) an ethylene-based polymer, having (a) a density from 0.90 g/cc to less than 0.94 g/cc, (b) a Tm from 90° C. to 120° C., (c) a melt index from 30 g/10 min to 600 g/10 min. The microparticles also include (ii) a dispersant composed of a C 14 -C 40 aliphatic fatty acid. The microparticles also include (iii) an optional acid functional wax.

Electrowetting optical device

An electrowetting optical device is provided comprising a conductive liquid and a non-conductive liquid, the liquids being non miscible, having different refractive indices and forming an interface, wherein the conductive liquid comprises from 5 % by weight of a fluorinated salt, based the total weight of the conductive liquid. An apparatus comprising said electrowetting optical device is described as well.

Processo

a presente divulgação se refere a um processo que inclui fornecer uma dispersão aquosa de poliolefina com (50) a (90)% em peso de teor de sólidos da dispersão, em que a dispersão aquosa de poliolefina contém partículas sólidas que contêm uma poliolefina incluindo um polímero à base de etileno com uma temperatura de fusão mais alta do que (115) °c a (140) °c, cera de poliolefina, dispersante acrílico; e uma fase aquosa incluindo dispersante acrílico em excesso; adicionar água de diluição para formar uma dispersão aquosa de poliolefina diluída com (5) a menos do que (50)% em peso de teor de sólidos; coletar as partículas sólidas; lavar as partículas sólidas com um agente de lavagem para remover o dispersante acrílico em excesso; e remover o agente de lavagem para formar um pó com um tamanho médio de partícula de volume médio de (10) a (300) µm, uma esfericidade de (0,92) a (1,0), uma distribuição de tamanho de partícula de (1) a menos do que (2), uma densidade de partícula de (98)% a (100)% e uma taxa de fluxo em um funil grande de (1) a (5) segundos.

Drag reducing agent

A drag reducing agent that includes a polymer composed of one or more C6-C14 ?-olefin monomers, which polymer comprises a residual amount of zirconium and has an absolute weight average molecular weight (Mw(Abs)) greater than 1,300,000 g/mol and a Mw(Abs)/ Mn(Abs) from 1.3 to 3.0, and that includes a liquid carrier that includes at least water.

Shutdown separator

The present disclosure provides an electrochemical cell. In an embodiment, the electrochemical cell includes a separator disposed between an optional anode and an optional cathode. The separator includes (A) a porous substrate and (B) a porous coating layer on the substrate. The porous substrate (A) is composed of an olefin-based polymer having a melting point, Tm, greater than 130?. The porous coating layer (B) has a melting temperature from 80?to 110?. The porous coating layer (B) is composed of a plurality of microparticles, and an optional binding agent. The microparticles have an average particle size from 0.3 microns to 1.5 microns. The microparticles are composed of (i) an ethylene-based polymer, having (a) a density from 0.90 g/cc to less than 0.94 g/cc, (b) a Tm from 90?to 120?, (c) a melt index from 30 g/10min to 600 g/10min. The microparticles also include (ii) a dispersant composed of a C 14-C 40aliphatic fatty acid. The microparticles also include (iii) an optional acid functional wax.

Célula eletroquímica

CÉLULA ELETROQUÍMICA. A presente divulgação refere-se a uma célula eletroquímica. Em uma modalidade, a célula eletroquímica inclui um separador disposto entre um ânodo opcional e um cátodo opcional. O separador inclui (A) um substrato poroso e (B) uma camada de revestimento poroso no substrato. O substrato poroso (A) é composto por um polímero à base a olefina que tem um ponto de fusão, Tm, maior que 130 °C. A camada de revestimento porosa (B) tem uma temperatura de fusão de 80 °C a 110 °C. A camada de revestimento poroso (B) é composta de uma pluralidade de micropartículas, e um agente de ligação opcional. As micropartículas têm um tamanho de partícula de 0,3 mícron a 1,5 mícron. As micropartículas são compostas de (i) um polímero à base de etileno, tendo (a) uma densidade de 0,90 g/cm3 a menos de 0,94 g/cm3, (b) uma Tm de 90 °C a 120 °C, (c) um índice de fusão de 30 g/10min a 600 g/10min. As micropartículas também incluem (ii) um dispersante composto de C14-C40 ácido graxo alifático. As micropartículas também incluem (iii) uma cera funcional ácida opcional.

Shutdown separator

The present disclosure provides an electrochemical cell. In an embodiment, the electrochemical cell includes a separator disposed between an optional anode and an optional cathode. The separator includes (A) a porous substrate and (B) a porous coating layer on the substrate. The porous substrate (A) is composed of an olefin-based polymer having a melting point, Tm, greater than 130℃. The porous coating layer (B) has a melting temperature from 80℃to 110℃. The porous coating layer (B) is composed of a plurality of microparticles, and an optional binding agent. The microparticles have an average particle size from 0.3 microns to 1.5 microns. The microparticles are composed of (i) an ethylene-based polymer, having (a) a density from 0.90 g/cc to less than 0.94 g/cc, (b) a Tm from 90℃to 120℃, (c) a melt index from 30 g/10min to 600 g/10min. The microparticles also include (ii) a dispersant composed of a C 14 -C 40 aliphatic fatty acid. The microparticles also include (iii) an optional acid functional wax.

Shutdown separator

The present disclosure provides an electrochemical cell. In an embodiment, the electrochemical cell includes a separator disposed between an optional anode and an optional cathode. The separator includes (A) a porous substrate and (B) a porous coating layer on the substrate. The porous substrate (A) is composed of an olefin-based polymer having a melting point, Tm, greater than 130℃. The porous coating layer (B) has a melting temperature from 80℃to 110℃. The porous coating layer (B) is composed of a plurality of microparticles, and an optional binding agent. The microparticles have an average particle size from 0.3 microns to 1.5 microns. The microparticles are composed of (i) an ethylene-based polymer, having (a) a density from 0.90 g/cc to less than 0.94 g/cc, (b) a Tm from 90℃to 120℃, (c) a melt index from 30 g/10min to 600 g/10min. The microparticles also include (ii) a dispersant composed of a C 14 -C 40 aliphatic fatty acid. The microparticles also include (iii) an optional acid functional wax.

Method of making a grease thickener and the thickener made by the method

A continuous process for producing a polyurea concentrate or powder. The process includes combing at least one amine and an isocayante in the presence of a liquid diluent or a base oil in a rotor stator mixer. The concentrate comprises a polyurea in a base oil wherein the concentration of from about 20 weight percent to about 50, or 40 or 35 or 30 weight percent of polyurea based on total weight of grease thickener. The powder has particle size of of 2 to 400 microns. This concentrate or powder can then be formulated by grease manufacturers to the desired final properties without the need for handling of the isocyanate and amine raw materials

Agente reductor de arrastre

Un agente reductor de arrastre que incluye un polímero compuesto por uno o más monómeros de a-olefina C₆-C₁₄, cuyo polímero comprende una cantidad residual de zirconio y tiene un peso molecular promedio ponderado absoluto (Mw₍Aᵇₛ₎) mayor que 1.300.000 g/mol y un Mw₍Aᵇₛ₎/Mn₍Aᵇₛ₎ de 1,3 a 3,0, y que incluye un portador líquido que incluye al menos agua.

Recyclate polyol dispersion with improved phase stability

Recyclate polyol dispersions that have a dispersed solid phase are stabilized against settling by the addition of a fumed silica having a certain methanol wettability. The stabilized dispersions are more resistant to particle settling upon standing. The stabilized dispersions are useful for making polyurethanes of various types, including flexible and rigid types of polyurethane foams. The fumed silica has no significant adverse effect on foam production.

Agente reductor de arrastre

RESUMEN Un agente reductor de arrastre que incluye un polímero compuesto por uno o más monómeros de α-olefina C6-C14, cuyo polímero comprende una cantidad residual de zirconio y tiene un peso molecular promedio ponderado absoluto (Mw(Abs)) mayor que 1.300.000 g/mol y un Mw(Abs)/ Mn(Abs) de 1,3 a 3,0, y que incluye un portador líquido que incluye al menos agua.

Method for producing encapsulated quantum dots

Method for producing encapsulated quantum dots

A method for encapsulating quantum dots. The method comprises steps of: (a) mixing quantum dots with a polymer having a molecular weight from 1,000 to 200,000 and a solubility parameter from 14 to 18.75 (J/cm 3 ) 1/2 and a solvent to form a mixture; and (b) spray drying the mixture to produce an encapsulated quantum dot powder.

Process for removal of contaminants from contaminated thermoplastic

A method for reducing an amount of a contaminant in a thermoplastic polymer comprising shearing a combination comprising a contaminated thermoplastic polymer in melt form, water, and a dispersing agent where the shearing causes a portion of the contaminant to be removed from the contaminated thermoplastic polymer (e.g. moved into an aqueous phase with the water or into another separate phase from the water and the polymer), and after shearing, separating the thermoplastic from the aqueous phase to recover thermoplastic polymer.