Abstract: The present invention relates to a process for preparing a solid catalyst component suitable for producing polyethylene and its copolymers, said process comprising the steps of: (a) contacting a dehydrated support having hydroxyl groups with a magnesium compound having the general formula MgR1R2; (b) contacting the product obtained in step (a) with modifying compounds (A) and/or (B) and/or (C), wherein: (A) is at least one oxygen and/or nitrogen comprising organic compound; (B) is a compound having the general formula R11f(R12O)gSiXh, (C) is a compound having the general formula (R13O)4M, and (c) contacting the product obtained in step (b) with a titanium halide compound having the general formula TiX4, wherein Ti is a titanium atom and X is a halide atom, wherein an organometallic compound is added after step (a) and before step (b). The invention also relates to a solid catalyst component obtainable by said process.

Abstract: Disclosed herein is a cast film comprising a polyethylene composition comprising the reaction product of ethylene and optionally one or more alpha-olefin comonomers, wherein said polyethylene composition is characterized by the following properties: a melt index, I2, measured according to ASTM D1238 (2.16 kg, 190° C.), of from 1 to 20 g/10 min; a density (measured according to ASTM D792) of from 0.935 to 0.970 g/cm3; a melt flow ratio, I10/I2, wherein I10 is measured according to ASTM D1238 (10 kg, 190° C.) of from 5.5 to 7.0; a molecular weight distribution (Mw/Mn) of from 2.2 to 3.5; and a vinyl unsaturation of greater than 0.12 vinyls per one thousand carbon atoms present in the backbone of the composition.

Abstract: Processes for preparing a polyethylene in at least one continuously stirred tank reactor are described herein. The process may comprise the step of: polymerizing ethylene in the presence of at least one supported metallocene catalyst, a diluent, optionally one or more co-monomers, and optionally hydrogen, thereby obtaining the polyethylene, wherein the supported metallocene catalyst comprises a solid support, a co-catalyst and at least one metallocene, wherein the solid support has a surface area within the range of from 100 to 500 m2/g, and has a D50 value within the range of from 4 ?m to 18 ?m, with D50 being defined as the particle size for which fifty percent by weight of the particles has a size lower than the D50; and D50 being measured by laser diffraction analysis on a Malvern type analyzer. Polyethylene obtained by the disclosed process and articles comprising the polyethylene are also described.

Abstract: An object of the present invention is to provide a novel hetero ring-containing siloxane polymer, a composition and an electronic material composition containing the polymer, and an electronic element, which do not cause a decrease in luminous efficiency and driving stability of an electronic element, by adding the polymer to an electronic material composition or ink to be used for coating film formation. It has been found that the electronic element produced from the novel hetero ring-containing siloxane polymer, the composition and the electronic material composition containing the polymer exhibit improved luminous efficiency and driving stability, thereby completing the present invention.

Abstract: Essentially ethylene thiourea free cross linkable composition comprising a chloroprene rubber having defined contents of cations from the second or third main group and resinate anions are provided, which possess improved curing characteristics for increased productivity and lower vulcanization temperatures for energy-saving manufacturing methods and vulcanizates obtained by using said chloroprene rubber.

Abstract: Ethylene-based polymers comprising the following properties: (A) a density less than 0.9190 g/cc; (B) a hexane extractable level that meets the following equation: hexane extractable level ?A+B [log(12)], where A=2.65 wt %. and B—0.25 wt %[log (dg/min)]; based on total weight of the ethylene-based polymer; (C) a G? (at G?=500 Pa, 1 70° C.) that meets the following equation: G??C+D [log(12)], where C=150 Pa, and D=?60 Pa/[log(dg/min)]; and (D) a melt index (12) from 0.7 to 20 dg/min; are made in high pressure tubular process that comprises at least three reaction zones with the peak polymerization temperature of the first reaction zone ?320° C. and the peak polymerization temperature of the last reaction zone ?290° C.

Abstract: A method for producing highly reactive olefin polymers wherein at least 50 mol. % of the polymer chains have terminal double bonds, from an impurity-containing isobutylene or a mixed C4 hydrocarbyl feedstock containing isobutylene in which the water content of the feedstock is controlled to be at least equal to the content of polar impurities in the feedstock, and less than the concentration at which the water causes a decrease in vinylidene end-group selectivity.

Abstract: The present invention relates to a thermoplastic block copolymer comprising at least one PA block and at least one PB block. The PA block represents a polymer block comprising one or more units of monomer A, and the PB block represents a polymer block comprising one or more units of monomer B. Monomer A is a vinyl, acrylic, diolefin, nitrile, dinitrile, acrylonitrile monomer, a monomer with reactive functionality, or a crosslinking monomer. Monomer B is a radically polymerizable triglyceride or mixtures thereof, typically in the form of a plant or animal oil. The present invention also relates to a method of preparing a thermoplastic block copolymer or novel thermoplastic statistical copolymers by polymerizing a radically polymerizable monomer with a radically polymerizable triglyceride or mixtures thereof via reversible addition-fragmentation chain-transfer polymerization (RAFT), in the presence of an free radical initiator and a chain transfer agent.

Abstract: A polymeric compound is disclosed herein, having the general formula I: wherein m, n, X, Y, Z and L are as defined herein. Further disclosed herein are lipid bilayers comprising at least one bilayer-forming lipid and the aforementioned polymeric compound, and liposomes comprising such a bilayer, as well as methods, uses and compositions utilizing such bilayers and/or liposomes for reducing a friction coefficient of a surface and/or for inhibiting biofilm formation.

Abstract: The present invention relates to an olefin polymerization process, wherein propylene and a C4 to C10 ?-olefin monomer, preferably 1-butene- and optionally ethylene are reacted in the presence of a Ziegler-Natta catalyst so as to obtain a polypropylene, wherein the polypropylene comprises C4 to C10 ?-olefin, preferably 1-butene-derived comonomer units in an amount of from 0,5 to 15 wt % and ethylene-derived comonomer units in an amount of 0 to 3 wt %, and wherein the Ziegler-Natta catalyst comprises i) an external donor of the formula (I): (R3)z(R2O)ySi(R1)x, and ii) a solid catalyst component being free of external carrier material.

Abstract: An ultra-high molecular weight ethylene-based copolymer powder comprising: an ethylene unit and an ?-olefin unit having 3 or more and 8 or less carbon atoms as structural units, wherein the ultra-high molecular weight ethylene-based copolymer powder has a viscosity-average molecular weight of 100,000 or more and 10,000,000 or less, a content of the ?-olefin unit is 0.01 mol % or more and 0.10 mol % or less based on a total amount of the ethylene unit and the ?-olefin unit, and in measurement with a differential scanning calorimeter under following conditions,an isothermal crystallization time is determined as a time from reaching 126° C. of Step A3 as a starting point (0 min) to giving an exothermic peak top due to crystallization and the isothermal crystallization time is 5 minutes or more. (Conditions for measurement of isothermal crystallization time) Step A1: holding at 50° C. for 1 minute and then an increase up to 180° C. at a temperature rise rate of 10° C./min, Step A2: holding at 180° C.

Abstract: An ethylene-vinyl alcohol copolymer composition is provided, which contains an ethylene-vinyl alcohol copolymer and an iron compound, wherein the ethylene-vinyl alcohol copolymer has an ethylene content of 20 to 60 mol %, wherein the iron compound is present in a proportion of 0.01 to 100 ppm on a metal basis based on the weight of the ethylene-vinyl alcohol copolymer composition.

Abstract: The present technology relates to hydrophobically modified alkali-swellable emulsion polymers that are useful as rheology modifiers. More specifically the present technology relates to hydrophobically modified alkali-swellable emulsion polymers containing residues of a polyunsaturated amphiphilic macromonomer. In one aspect the disclosed polymers are useful for thickening aqueous surfactant containing compositions, while providing the compositions in which they are included excellent rheology properties, clarity, and the ability to stably suspend insoluble and particulate materials over long periods of time.

Abstract: The present invention discloses a method for preparing a concrete superplasticizer having a phosphorous acid group and a use of the concrete superplasticizer. The concrete superplasticizer having a phosphorous acid group according to the present invention is prepared by free radical copolymerization of a phosphorous-containing monomer A and a polyether macromonomer B. The concrete superplasticizer having a phosphorous acid group obtained in the present invention can effectively improve flowability of concrete and can retain good workability of concrete. The method is simple, economical and effective, and in particular, can be used for commercial mass production.

Abstract: This invention relates to a novel one-pot process for polyolefin modification to form long-chain branched polymers containing polar functional groups, and the long-chain branched polymer resulting from the process. The process comprises reacting the following components (a) through (d) in a one pot process to form a long-chain branched polyolefin. Component (a) is a polyolefin; component (b) includes one or more silane compounds having the formula R?SiRnR?(3-n), component (c) is an ethylenically unsaturated polycarboxylic acid; and component (d) is a free radical initiator. In the formula R?SiRnR?(3-n) for component (b), R? is an ethylenically or acetylenically unsaturated radical; R is a hydrolyzable group selected from the group consisting of an alkoxy, acyloxy, alkylamino, and arylamino; R? is a hydrocarbyl group having 1 to 6 carbon atoms; and n is 1, 2, or 3.

Abstract: Disclosed herein arc one part, One-part, curable compositions that have a soft feel when applied as a coating/film and cured, may include a) at least one isocyanurate tri(meth)acrylate or derivative thereof; and at least one of components b)-e), wherein: b) is at least one urethane diacrylate; c) is at least one monofunctional or difunctional reactive diluent; d) is at least one solvent; and e) is additives. The one-part, curable compositions are advantageous with respect to softness and tailorability of softness as well as other properties such as mar resistance, abrasion resistance, stain resistance and chemical resistance. Due to their advantageous properties, embodiments of the one-part, curable compositions described herein are viable for a wide range of coating applications including automotives, aeronautics, cosmetics, small appliances, packaging and consumer electronics. Methods of making and using the one-part, curable are also described herein.

Abstract: A radically curable composition includes 100 parts by weight of a (meth)acrylic polymer (I) with an average of at least 0.8 radically-crosslinkable groups, 0.01 to 10 parts by weight of a radical polymerization initiator (II), and 10 to 100 parts by weight of a (meth)acrylate compound (III) having a rosin ester group.

Abstract: A polyurethane (meth)acrylate oligomer, having a tri-block symmetric structure BAB, comprises a polyether central block A linked by two urethane bonds to respectively two terminal hydrophobic blocs B based on hydrophobic polyester oligomers having a terminal (meth)acryloyloxy alkylene group. A curable composition (1k) comprises the oligomer and may be used for soft touch coatings in electronics, consumer goods and vehicle manufacture, as the resulting cured soft touch coating.

Abstract: The present invention provides: a novel production technique that enables production of a polymer whose molecular weight and molecular weight distribution are controlled and production of a polymer having a complicated structure in a desirably controlled manner using commercially available materials without using a radical polymerization initiator or a special material for use in living radical polymerization and without the need for strict polymerization conditions; and a radical polymerization initiating group-containing compound for use in the technique.

Abstract: Provided is an ABA block copolymer that can offer a pigment dispersion composition having excellent dispersion stability when used as a pigment dispersant in an aqueous medium. An ABA block copolymer including: an A block containing a structural unit represented by a general formula (1) below and a structural unit derived from a vinyl monomer with an acid group; and a B block containing a structural unit derived from a vinyl monomer with an aromatic ring group or an alicyclic alkyl group, the ABA block copolymer having an acid value of 30 to 250 mgKOH/g. In the general formula (1), R1 is a hydrogen atom or a methyl group and R2 is an alkyl group having 2 to 10 carbon atoms.

Abstract: The invention relates to a method for synthesizing NCO-terminated polyurethanes having improved elastic properties, said method involving the staggered addition of diisocyanate(s). The invention also relates to NCO-terminated polyurethanes that have high elongation at break and can be obtained using the disclosed method. The invention finally relates to adhesive, mastic and/or coating compositions comprising the disclosed NCO-terminated polyurethane.

Abstract: An object of the present invention is to provide a polyurethane composition, in which reduction in the strength of the foam is suppressed when the foam has been greatly deformed. The present invention relates to a polyurethane composition comprising a base resin and a curing agent, wherein the base resin comprises a compound (A-1) comprising a polyalkylene skeleton comprising neither an aromatic skeleton nor an alicyclic skeleton, and having two or more functional groups having an active hydrogen atom, a compound (A-2) comprising an aromatic skeleton and/or alicyclic skeleton, and having two or more functional groups having an active hydrogen atom, a blowing agent (B), and an amine-based catalyst (C); a polyurethane foam therefrom; and a method for soundproofing and reinforcing a vehicle.

Abstract: The invention provides a unique thermoset viscoelastomeric reaction product and a container combination comprised of the supportive base equipped with a thermoset viscoelastomer reaction product possessing unexpectedly superior adhesive and cohesive efficacy rendering it especially useful as an adhesive insert in a container combination. The thermoset insert bonds to any suitable supportive structure. The unique viscoelastomeric reaction product inserts adhesively immobilize items placed thereupon and adhesively or permanently bonds to most conventional containers. The tenacious cohesive and adhesive features of the insert allows for inverted stowage of stowed items. Due to the confining adhesive and cohesive attributes of the insert, structural supports of a flexible or solid base without a conventional confining structure provide a unique container combination for the stowed items.

Abstract: The present invention relates to a novel XDI-terminated polyurethane. The present invention also relates to the use of said polyurethane for manufacturing an adhesive, mastic and/or surface coating composition, especially for the construction field, which is stable over time in terms of viscosity.

Abstract: Free-standing non-fouling polymers and polymeric compositions, monomers and macromonomers for making the polymers and polymeric compositions, objects made from the polymers and polymeric compositions, and methods for making and using the polymers and polymeric compositions.

Abstract: Heat-curing epoxy resin compositions are characterized by high impact strength, good storage stability, and a low curing temperature. The epoxy resin compositions are suitable for use as a construction shell adhesive and for producing structural foams. They can already be cured in so-called bottom-baking conditions. Furthermore, it has been found that the use of an accelerator of the formula (Ia) or (Ib) results in an increase of the impact strength of heat-curing epoxy resin compositions.

Abstract: The invention relates to a liquid bi-component composition comprising a silylated polymer having alkoxysilane functions, an epoxy resin, an amine catalyst for the epoxy and a catalyst for silanol condensation, and an adhesion promoter or a coupling agent. After crosslinking, the liquid composition according to the invention makes it possible to obtain a waterproofing membrane suitable for pedestrian and/or vehicle traffic.

Abstract: The use of an amine of formula (I) as a component of a hardener for epoxy resins, hardeners for epoxy resins containing the amine of formula (I), and resultant epoxy resin compositions which can particularly be used as low-emission room-temperature-curing epoxy-resin coatings with high hardness and surface quality. The amine of formula (I) is low-odour and a very successful diluent for epoxy resin compositions. It is particularly obtained by reductive alkylation from 1,2-ethylenediamine or 1,2-propylenediamine and an aldehyde or ketone.

Abstract: Light-Emitting Compound A composition comprising a light-emitting compound having a peak wavelength of at least 650 nm and a material comprising a group of formula (I): wherein Ar1, Ar2 and Ar3 in each occurrence are independently selected from a C6-20 aromatic group and a 6-20 membered heteroaromatic group of C and N ring atoms and at least one of Ar1, Ar2 and Ar3 is a 6-20 membered heteroaromatic group of C and N ring atoms; x, y and z are each independently at least 1; n, m and p are each independently 0 or a positive integer; and R1, R2 and R3 in each occurrence is independently a substituent or a single bond to a polymer chain, wherein the group of formula (I) has no more than 3 single bonds to a polymer chain. The composition may be used in the light-emitting layer of an infrared organic light-emitting device.

Abstract: A cinnamic acid polymer or copolymer that can be employed as a biorenewable alternative to a commodity polymer results from the polymerization of hydroxyalkyldihydroferulic acids, hydroxyalkylferulic acids, hydroxyalkyldihydrocoumaric acids, hydroxyalkylcoumaric acids, dihydroferulic acid, ferulic acid, dihydrocoumaric acid, and coumaric acid in various proportions. The physical properties of the plastic are controlled by the composition of the polymers. A melt polycondensation route achieves the desired plastics.

Abstract: Disclosed are polymer compounds wherein the main polymer chain is a polyester and the pendants are polyalkylpiperidine. The compounds of the invention, either alone or mixed with other known agents, are useful as stabilisers of polymers, especially polyolefins.

Abstract: A process for reducing diethylene glycol formation in polyethylene terephthalate includes (a) subjecting a mixture of bis(2-hydroxyethyl)terephthalate with aromatic polycarboxylic acid to an esterification reaction, and (b) subjecting the esterification reaction product to polycondensation.

Abstract: The present invention relates to novel derivatives of (poly)alkoxylated (per)fluoropolyethers, also referred to as PFPE-PAGs, comprising unsaturated end groups bearing acrylate, allylic or vinylic moieties.

Abstract: The invention relates to a method for producing polyether carbonate polyols, wherein (i) in a first step a polyether carbonate polyol is produced from one or more H-functional starter substances, one or more alkylene oxides, and carbon dioxide in the presence of at least one DMC catalyst, and (ii) in a second step the polyether carbonate polyol is chain-extended with a mixture of at least two different alkylene oxides in the presence of at least one DMC catalyst. The invention further relates to polyether carbonate polyols that contain a terminal mixed block of at least two alkylene oxides and to a method for producing soft polyurethane foams, wherein a polyol component containing a polyether carbonate polyol according to the invention is used.

Abstract: The present invention provides a perfluoro(poly)ether group containing silane compound of (Rf-PFPE)?—X—(CRakRblRcm)???(1a) (RcmRblRakC)?—X—PFPE-X—(CRakRblRcm)???(1b) wherein the symbols are as defined in the description.

Abstract: A poly(phenylene ether) can be prepared by a method that includes reacting 2,6-dimethylphenol in the presence of toluene, oxygen, copper ion, bromide ion, and N,N?-di-tert-butylethylenediamine to form a poly(phenylene ether). The mole ratio of 2,6-dimethylphenol to copper ion is 160:1 to 300:1, the mole ratio of N,N?-di-tert-butylethylenediamine to copper ion is 1.5:1 to 3:1, and the mole ratio of atomic oxygen to 2,6-dimethylphenol is 0.9:1 to 1.5:1. The process can produce poly(phenylene ether) having a high molecular weight and a high incorporated amine content.

Abstract: Provided is a polyphenylene ether resin composition having excellent heat aging resistance and fluidity. A polyphenylene ether includes at least one structural unit selected from chemical formulae (1), (2), and (3).

Abstract: The present invention discloses a semiaromatic polyamide resin, a preparation method thereof, and a polyamide molding composition consisting of the same, which consists of following components: (A) 20 to 95 wt % of a PA10T homopolymer derived from 1,10-decanediamine and terephthalic acid; and (B) 5 to 80 wt % of a PA6T homopolymer derived from 1,6-hexanediamine and terephthalic acid. Particularly, (A)+(B)=100 wt %. In the present invention, by adding a certain amount of the PA10T homopolymer into the PA6T homopolymer, a melting point of the PA6T homopolymer can be significantly decreased to be below a decomposition temperature thereof, and thereby a processability of the PA6T homopolymer is improved. The prepared semiaromatic polyamide resin has a decreased melting point, and may be processed normally. The polyamide molding composition consisting of the semiaromatic polyamide resin has a good processability, and has excellent surface properties.

Abstract: The present invention discloses a semiaromatic copolyamide resin and a polyamide molding composition consisting of the same, consisting of following repeat units: (A) 26-80 mol % of units derived from para-amino benzoic acid; (B) 4-70 mol % of units derived from 11-aminoundecanoic acid or undecanolactam, and 0-70 mol % of units derived from another amino acids having 6 to 36 carbon atoms or units consisting of a lactam having 6-36 carbon atoms; (C) 0-37 mol % of units derived from a diamine unit having 4 to 36 carbon atoms; and (D) 0-37 mol % of units derived from a diacid unit having 6 to 36 carbon atoms; wherein, (A)+(B)+(C)+(D)=100 mol %; and molar contents of the units derived from para-amino benzoic acid and those derived from 11-aminoundecanoic acid or undecanolactam are not equal to 50 mol % simultaneously.

Abstract: Polyurethane compositions are disclosed herein, as well as methods of making and using such polyesters. In some embodiments, the polyurethanes are formed from monomers derived from natural oils. In some embodiments, the polyurethanes are formed without the use of monomers bearing isocyanate groups.

Abstract: A thermally conductive type polyimide substrate is provided. The substrate comprises at least one insulating layer having a metal layer on a single side or both sides thereof. The material of the insulating layer is a thermally conductive type photosensitive resin having a thermal conductivity of 0.4 to 2, and the thermally conductive type photosensitive resin includes the following components: (a) a photosensitive polyimide, (b) an inorganic filler, and (c) a silica solution. The photosensitive polyimide accounts for 50 to 70% of a total weight of a solid composition of the thermally conductive type photosensitive resin. The inorganic filler accounts for 20-30% of the total weight of the solid composition of the thermally conductive type photosensitive resin, and has a particle size between 40 nm and 5 ?m.

Abstract: Spherical silsesquioxane particles are formed by controlled hydrolysis of trialkoxysilane(s) in acidic media, followed by addition of base, storage for at least 2 hours, and spray drying. Essentially non-agglomerated spherical particles are produced without milling.

Abstract: An environmentally-sensitive material includes a sensitive layer and a base. The sensitive layer includes a mixed portion and a sensitive portion seamlessly connected to the mixed portion. The mixed portion is made of a mixture of a first polymer gel and a second polymer gel. The sensitive portion is made of the second polymer gel. The second polymer gel is a reversible gel which is able to revert to an original size and state as a changed environmental factor reverts to a starting state. A method for manufacturing the material is also provided.

Abstract: The present invention relates to a method for producing a polymer aggregate, the method including: a step for bringing a polymer solution containing a polymer substance and cations for gel formation into contact with an anion solution containing anions for gel formation to form a gel at an interface between the polymer solution and the anion solution; and a step for causing the polymer substance to aggregate inside the gel.

Abstract: The invention relates to a method to reduce or prevent agglomeration of rubber particles in aqueous media by LCST compounds and elastomers obtained thereby. The Invention further relates to elastomer products comprising the same or derived therefrom.

Abstract: The present invention relates to a process for producing polyolefin particles from a polyolefin composition, comprising the steps of: a) providing a melted composition of a polyolefin and b) providing particles from the melted composition by: b1) mixing a first flow of a supercritical fluid in the melted composition in a pressure vessel to obtain a solution saturated with the supercritical fluid and b2) passing the solution from the pressure vessel through a throttling device to a spraying tower to expand the solution to obtain the polyolefin particles in the spraying tower, wherein a second flow of a supercritical fluid is injected in the throttling device, wherein the supercritical fluid is a supercritical fluid of a substance selected from the group consisting of CO2, NH3, H2O, N2O, CH4, ethane, propane, propylene, n-butane, i-butane, n-pentane, benzene, methanol, ethanol, isopropanol, isobutanol, chlorotrifluoromethane, monofluoromethane, 1,1,1,2-Tetrafluoroethane, toluene, pyridine, cyclohexane, cyclohex

Abstract: The invention relates to a plastic composition, comprising (a) at least one polar thermoplastic polymer; (b) at least one metallic salt of an unsaturated aliphatic fatty acid; (c) at least one polyhydric alcohol, the melting point of which is no more than 80° C. below and no more than 50° C. above the melting point of the polymer (a); and (d) at least one further alcohol that is different from the alcohol (c), and the boiling point of which is no more than 100° C. below and no more than 80° C. above the melting point of the polymer (a).

Abstract: A method of making a HIPP composite comprising blending polypropylene-coated functionalized multiwall carbon nanotubes (PP/f-MWNT) with a first PP to produce a PP and PP/f-MWNT mixture, wherein PP/f-MWNT comprise f-MWNT coated with a second PP via non-covalent interactions, wherein PP and PP/f-MWNT mixture comprises 0.0005 to 5 wt. % f-MWNT, based on the weight of PP and PP/f-MWNT mixture, wherein the first PP and the second PP are the same or different; melt blending the PP and PP/f-MWNT mixture to form a molten PP and PP/f-MWNT mixture; and shaping the molten PP and PP/f-MWNT mixture to form the HIPP composite. A HIPP composite comprising a continuous polymeric phase having dispersed therein a plurality of PP/f-MWNT, wherein the continuous polymeric phase comprises a first PP, wherein PP/f-MWNT comprise f-MWNT coated with a second PP via non-covalent interactions, wherein HIPP composite comprises 0.0005 to 5 wt. % f-MWNT, based on the weight of HIPP.

Abstract: Dyed articles, such as sutures, and methods for making the same by treating with a supercritical liquid are disclosed. The articles may be made at least partially, if not entirely, from ultra-high molecular weight polyethylene (UHMWPE). The dye may be D&C Violet #2.

Abstract: A process and device continuously prepare a filled rubber masterbatch. The process comprises bringing into contact, in a mixing zone, a first liquid-phase flow and a second liquid-phase flow, the first flow being an elastomer emulsion, the second flow being an aqueous suspension of filler particles, such that one of the two flows emerges inside the other flow and that the two flows are transported at low pressure before they are brought into contact.