Abstract: The invention pertains to a process for manufacturing a polymer electrolyte separator based on a fluoropolymer hybrid organic/inorganic composite, said process comprising: (i) providing a mixture of: —at least one fluoropolymer comprising recurring units derived from at least one (meth)acrylic monomer [monomer (MA)] of formula (I): wherein each of R1, R2, R3, equal or different from each other, is independently a hydrogen atom or a C1-C3 hydrocarbon group, and ROH is a C1-C5 hydrocarbon moiety comprising at least one hydroxyl group [polymer (F)]; —at least one metal compound [compound (M)] of formula: X4-mAYm wherein m is an integer from 1 to 4, A is a metal selected from the group consisting of Si, Ti and Zr, Y is a hydrolysable group, X is a hydrocarbon group, optionally comprising one or more functional groups; and —at least one electrolyte (E); and —at least one liquid plasticizer (S); (ii) reacting at least a fraction of hydroxyl groups of the ROH groups of said monomer (MA) of said polymer (F) with at l

Abstract: The present invention concerns new halogen substituted diketone compounds, new pyrazole compounds, processes for the manufacture of pyrazole compounds and processes for the manufacture of agrochemical or pharmaceutical compounds.

Abstract: A method for the prophylactic treatment of the development of parasites in a food product storage silo, the food product storage generating the deposit of food product scraps and/or dust on the walls of the silo, said prophylactic treatment method comprising the application, to at least one part of the walls, of a layer comprising at least 10 g of mineral per m2 of wall, the mineral being chosen from: an alkali metal bicarbonate, an alkaline-earth metal carbonate, an alkali metal sulphate, an alkaline-earth metal sulphate, an alkaline-earth metal oxide, and mixtures thereof; the mineral being in the form of particles having an average diameter of at most 200 ?m; and said method being characterized in that the application of the layer is carried out after emptying of the silo, on food product scraps and/or dust deposited on the walls of the silo.

Abstract: Described here are polyphenylene sulfide (“PPS”) polymers having significantly improved processability. It was surprisingly found that PPS polymers, terminated with specific end-capping agents in specific amounts, had significantly improved melt stability. Because of the significantly improved melt stability, the PPS polymers can be advantageously incorporated into melt processing techniques.

Abstract: A polymer composition includes at least two different polymers independently selected from a poly(aryl ether ketone) (PAEK), a poly(aryl ether sulfone) (PAES), a polyarylene sulfide (PAS) and a polyetherimide (PEI), and about 0.05 to about 2 wt. % of at least one alkali metal carbonate. Preferably, the polymer composition is free or substantially free of solvent. A method includes melt mixing at least two different polymers independently selected from a poly(aryl ether ketone) (PAEK), a poly(aryl ether sulfone) (PAES), a polyarylene sulfide (PAS) and a polyetherimide (PEI), and about 0.05 to about 2 wt. % of at least one alkali metal carbonate to form a compatibilized polymer composition.

Abstract: The present invention relates a mobile electronic device comprising at least one part made of a polymer composition comprising for more than 80% by weight (% wt.) relative to the total weight of the composition (C) of an aromatic polysulfone polymer comprising a residual chlorine content in an amount of less than 25 ?eq/g polymer.

Abstract: A process for producing a calcium phosphate reactant, according to which: in a first step, use is made of a source of calcium and a source of phosphate ions in water, in a molar ratio that is adjusted so as to obtain a Ca/P molar ratio of between 0.5 and 1.6, and the source of calcium is reacted with the phosphate ions at a pH of between 2 and 8, in order to obtain a suspension (A) of calcium phosphate, and in a second step, added to the suspension (A) are an alkaline compound comprising hydroxide ions in order to set a pH of more than 8 and an additional source of calcium in order to obtain a suspension (B) of calcium phosphate reactant having a Ca/P molar ratio of more than 1.6. A calcium phosphate reactant obtainable by such a process.

Abstract: Process for the joint production of sodium carbonate and sodium bicarbonate crystals, according to which: a solid powder derived from sodium sesquicarbonate, having a mean particle diameter comprised between 0.1 and 10 mm is dissolved in water; the resulting water solution is introduced into a crystallizer, wherein a first water suspension comprising sodium carbonate crystals is produced; the first water suspension is subjected to a separation, in order to produce crystals comprising sodium carbonate on the one hand, which are valorized, and a mother liquor on the other hand; and a part of the mother liquor is taken out of the crystallizer and put into contact in, a gas liquid contactor, with a gas comprising carbon dioxide, in order to produce a second water suspension comprising sodium bicarbonate crystals, which are separated and valorized. A reagent powder comprising sodium bicarbonate crystals made by such process.

Abstract: The present invention relates to (co)polyamides comprising at least 60 mol. % of recurring units of formula (I): (I). The present invention also relates to polymer compositions comprising such (co)polyamides, as well as articles comprising the same and methods of using said articles in high temperature applications requiring sufficient swelling or deformation upon exposure to moisture, such as for example oil and gas extraction processes (e.g. fracturing balls), or as support materials used to print three-dimensional (3D) parts.

Abstract: A polyaryl ether ether composition(C) and methods of uses thereof are herein disclosed. The composition comprises a polymer blend [blend (B)] consisting of: —a first polyaryl ether ketone (PAEK-1)and —a second polyaryl ether ketone (PAEK-2), wherein the (PAEK-1) is crystalline and exhibits a melting temperature Tm of 330° C. or higher and the (PAEK-2) is either amorphous or crystalline and exhibits a melting temperature Tm of 315° C. or lower and wherein the (PAEK-1) constitutes more than 0% wt of blend (B). Composition (C) can be used in particular for the manufacture of coated metal surfaces, in particular for the coating of wires or of (part of) electronic devices.

Abstract: A composition and method for treating a fracturing fluid comprising produced water with high levels of dissolved solids using a polymer crosslinked with a boron compound and a high pH alkylamine buffer. The composition improves the viscosity stability of the fracturing fluid at elevated bottom-hole temperatures, particularly when the fluid has high levels of calcium and magnesium. The composition is particularly useful with polysaccharides, including galactomannan gums, such as guar gum, locust bean gum, and karaya gum, and allows for the use of the preferred boron compound crosslinkers in high total dissolved solids fracturing fluids without the pH destabilization problems encountered with the prior art.

Abstract: The present invention relates to novel fluoro-modified graphene compounds and to the processes for the preparation thereof. The invention also provides fluoro-modified graphene oxide that can be used as intermediate in the preparation of said fluoro-modified graphene compounds.

Abstract: A process for manufacturing hydrogen peroxide by an anthraquinone autoxidation process (AO-process) comprising two alternate (essential) steps of: (a) hydrogenation of a working solution in a hydrogenation unit in the presence of a catalyst, wherein such working solution contains at least one alkylanthraquinone dissolved in at least one organic solvent, to obtain at least one corresponding alkylanthrahydroquinone compound; and (b) oxidation of the at least one alkylanthrahydroquinone compound to obtain hydrogen peroxide in an oxidation unit; and further comprising the step of: (c) extracting the hydrogen peroxide formed in the oxidation step in an extraction unit, wherein the units of step (a) to (c), optionally together with further ancillary units as appropriate, constitute a hydrogen peroxide production site, wherein one or more of said units are equipped with one or more sensors for monitoring one or more AO-process parameters at the hydrogen peroxide production site, said sensors being interconnected wit

Abstract: The invention pertains to a peroxide/nitrile dual cure fluoroelastomer composition able to provide for cured parts having improved thermal and water vapour resistance, to a method of curing the same and to cured articles obtained therefrom.

Abstract: A process for the manufacturing of a poly (arylether sulfone) polymer comprising reacting in a solvent mixture comprising a polar aprotic solvent and in the presence of an alkali metal carbonate, a monomer mixture which contains: at least one 1,4:3,6-dianhydrohexitol selected from the group consisting of isosorbide (1), isomannide (2) and isoidide (3); at least one dihaloaryl compound of formula (S): X—Ar1—SO2—[Ar2—(T-Ar3)n—SO2]m—Ar4—X wherein n and m, equal to or different from each other, are independently zero or an integer of 1 to 5; X and X?, equal to or different from each other, are halogens selected from F, Cl, Br, I; each of Ar1, Ar2, Ar3 and Ar4 equal to or different from each other and at each occurrence, is an aromatic moiety, T is a bond or a divalent group optionally comprising one or more than one heteroatom; optionally, at least one dihydroxyl compound different from the diol (AA); optionally, at least one dihaloaryl compound different from the dihalo (BB); and optionally, at least one hydroxy

Abstract: A process for manufacturing a dispersion of a vinylidene fluoride (VDF) thermoplastic polymer [polymer (F)], said process includes polymerizing VDF in an aqueous phase that includes: at least one surfactant selected from the group consisting of non-fluorinated surfactants [surfactant (HS)] and fluorinated surfactants having a molecular weight of less than 400 [surfactant (FS)]; and at least one functional (per)fluoropolyether (functional PFPE) comprising at least one (per)fluoropolyoxyalkylene chain [chain (R?F)] and at least one functional group, said functional PFPE having a number average molecular weight of at least 1000 and a solubility in water of less than 1% by weight at 25° C., wherein said functional PFPE is present in the aqueous phase in an amount of 0.001 to 0.3 g/l.

Abstract: A process for producing crystalline sodium bicarbonate, comprising: providing an aqueous sodium-bicarbonate containing liquor originating from a reactive crystallization step in which first sodium bicarbonate crystals are produced and recovered; feeding at least a portion of said aqueous sodium-bicarbonate containing liquor to a cooling crystallization unit to form second sodium bicarbonate crystals and produce a crystals slurry comprising the second sodium bicarbonate crystals; and withdrawing a portion of the crystals slurry from the cooling crystallization unit for the withdrawn second sodium bicarbonate crystals to be further processed. A portion of the second sodium bicarbonate crystals withdrawn from the cooling crystallization unit may be fed to a sodium bicarbonate reactive crystallization unit, to a caustic unit, or may be separated and dried.

Abstract: The invention pertains to a fluoroelastomer composition [composition (C)] comprising: —at least one fluoroelastomer [fluoroelastomer (A)]; —at least one basic compound [base (B)]; —at least one pyridinium-type salt [salt (P)] having at least two groups in ortho or para position to the quaternized nitrogen bearing a reactive hydrogen atom.

Abstract: Compounds [compounds (L)] comprising at least one monocyclic, polycyclic or polycondensed aromatic moiety [moiety (A*)], wherein: at least one carbon atom of moiety (A*) is substituted with a fluoropolyoxyalkene chain [chain (Rf)], said chain (Rf) comprising: a) a fluorocarbon segment having ether linkages in the main chain and b) at least one hydroxyl group and wherein: at least one other carbon atom of moiety (A*) is substituted with an electron-withdrawing group and mixtures thereof are herein disclosed. Disclosed are also a process for manufacturing compounds (L), a method for lubricating MRM comprising using compounds (L), a lubricant composition comprising one or more compounds (L) and a method for manufacturing a composition (C).

Abstract: Methods for dielectrically insulating electrical active parts The invention concerns methods for dielectrically insulating electrical active parts using certain fluorinated cyano-substituted ethers as well as compositions and apparatus comprising such compounds.