Abstract: The invention consists of a process for manufacturing ashes from the combustion of coal, this process comprising at least one step of bringing the coal into contact with an absorbent agent on the one hand, this absorbent agent being, on the other hand, contained in an aqueous phase in the presence of a (meth)acrylic dispersant, preferably a (meth)acrylic comb polymer. Thus the emissions of carbon dioxide and likewise the compounds based on sulphur, nitrogen or mercury which result from the combustion of coal are effectively combated.

Abstract: The object of the invention is the use, as a thickening agent for a water-based paint, of an aqueous solution of a polyether of at least one polyoxyalkylene and at least one alpha-olefin epoxy, and/or at least one aliphatic or aromatic glycidyl ether, and at least one surface active agent whose chemical formula is CxH2x+1—(OX)y—OH where OX designates an oxylakylated unit, and characterized in that: for the polyether, the molar ratio (polyoxyalkylene:alpha-olefin epoxy or aliphatic or aromatic glycidyl ether) is between (1:4) and (1:10), for the surface active agent, 6?x?12 and 5?y?12, said solution exhibits a mass ratio (polyether/surface active agent) of between 2.0 and 0.5, and exhibits a water content of 30% to 75% of its total weight. Another object is the paint containing such a thickening system.

Abstract: The present invention relates to new associative monomers, terminated by a hydrophobic chain with a base of polycosanols, which can be bio-resourced raw materials, and notably of octacosanol. It also concerns the HASE-type associative copolymers manufactured from these monomers, from (meth)acrylic acid and from an ester of one of these acids. The invention also concerns the use of these copolymers as thickening agents for water-based formulations.

Abstract: New associative polyurethanes which are manufactured with cardanol which is potentially oxyethylated. Use of these polyurethanes as thickening agents for aqueous formulations.

Abstract: The invention consists of the use, in an alkide resin formulation in an aqueous phase, of a dispersing agent/thickener pair: the dispersing agent is a copolymer of (meth)acrylic acid with an oxyalkylated monomer possessing a polymerizable function and terminated by hydrogen or an alkyl group having from 1 to 4 carbon atoms, the thickener is an associative thickener containing at least one hydrophobic group which is a polystyrylphanyl, preferentially chosen from among distyrylphenyl, tristyrylphenyl, and mixtures thereof, and which is very preferentially tristyrylphenyl. This combination makes it possible to improve the brightness level retention of the paint film over time, while ensuring that the aqueous formulation has the desired rheology.

Abstract: The invention concerns the polymers obtained by the use of sulphur compounds in a process for controlled radical polymerisation in water of acrylic acid and/or acrylic acid with hydrosoluble monomers. It concerns also their uses as dispersant agents or agents to aid grinding and/or co-grinding of mineral matters in aqueous suspensions, and as dispersant agents incorporated directly in aqueous formulations containing mineral matters. Finally, the invention concerns the formulations of mineral matters obtained in this manner.

Abstract: A method for manufacturing a sheet of paper from a pulp and a sheet of paper obtained by the present method, wherein said pulp comprises a mixture of natural and/or synthetic fibers, water, and at least one aqueous suspension and/or dispersion comprising at least one mineral material, wherein said dispersion or suspension comprises, as a steric dispersing agent of at least one mineral material, at least one copolymer comprising at least one vinylic monomer, at least one non-ionic monomer, or a mixture of several monomers having formula (I) in the present method, wherein said agent limits the presence of divalent ions in the aqueous phase and said agent is not a chelating agent.

Abstract: The invention concerns the polymers obtained by the use of sulphur compounds in a process for controlled radical polymerization in water of acrylic acid and/or acrylic acid with hydrosoluble monomers. It concerns also their uses as dispersant agents or agents to aid grinding and/or co-grinding of mineral matters in aqueous suspensions, and as dispersant agents incorporated directly in aqueous formulations containing mineral matters. Finally, the invention concerns the formulations of mineral matters obtained in this manner.

Abstract: The invention consists of the use, within a method for manufacturing a paper coating, as a thickening agent of said coating, of a water-soluble polymer characterized in that it is made up of at least one ethylenically-unsaturated anionic monomer, of at least one ethylenically-unsaturated oxyalkylated monomer terminated by a branched hydrophobic alkyl, alkylaryl, arylalkyl, or aryl chain having 14 to 24 carbon atoms, and possessing 2 branches having at least 6 carbon atoms. The water retention of said coating is thereby improved, which contributes to a better printability of the paper coated by said coating.

Abstract: This invention relates to the use, in a foamy aqueous suspension of calcium sulfate hemihydrate, as an agent having the dual function of being a dispersing agent and an anti-defoaming agent, of a comb polymer made up of (meth)acrylic acid, a monomer which is an alcoxy- or hydroxy-polyalkylene glycol, and an ester of (meth)acrylic acid. It also relates to the aqueous suspensions thereby formed, and the plasterboard manufactured from 2 sheets of paper containing a body resulting from the drying of said suspensions.

Abstract: The invention consists of the use of phosphoric acid, in a method for concentrating an aqueous dispersion or suspension of calcium carbonate in the presence of at least one acrylic dispersing agent, as an agent for reducing the quantity of free dispersing agent, i.e. the fraction of acrylic dispersing agent not adsorbed onto the surface of the particles of the calcium carbonate and present in the aqueous phase. It also pertains to the aqueous dispersions or suspensions of calcium carbonate, exhibiting a reduced quantity of free dispersing agent.

Abstract: The invention consists of formulations based on compounds of platinum encapsulated by associative and water-soluble polymers. These formulations are in aqueous form or in the form of granulates. The invention further pertains to pharmaceutical preparations which contain these formulations, and their implementation in the fabrication of an orally administered medication, in polychemotherapy treatments.

Abstract: The invention consists of the use, as scale-prevention and sticking-prevention agents, of homopolymers derived from a maleic acid polymerization, in the presence of a catalytic system using oxygenated water and sodium hypophosphite, in which the molar ratio of sodium hypophosphite/maleic acid is between 0.2 and 1, and preferentially between 0.35 and 0.6.

Abstract: The invention resides in the implementation of an antioxidant during the functionalization reaction of a (meth)acrylic polymer in a dry state by polyoxyalkylated lateral groups, so as to improve the grafting rate of the final polymer. The obtained polymers constitute another object of the invention, as do the aqueous formulations that they contain.

Abstract: The invention consists of a method for dispersion in water of an alkyd resin, by means of a polymer having associative hydrophobic groups. The formulations obtained then enable a water-based alkyd paint to be manufactured, without having recourse to surfactants or solvents.

Abstract: The invention consists of a method for manufacturing an aqueous formulation containing at least one oil, and comprising the steps of mixing at least one associative polymer, one oil, and water, encapsulating the oil by increasing the pH to a value greater than 8, potentially precipitating the mixture by reducing the pH to a value less than 6, and potentially isolating the resulting particles by removing the water. The aqueous formulations, as with the aqueous dispersions, and the resulting solid particles constitute other objects of the invention.

Abstract: The invention concerns the use as a thickening agent, in possibly pigmented aqueous formulations, such as coating formulations such as paints in the aqueous phase such as dispersion paints, varnishes, paper coatings, cosmetic formulations, detergent formulations, textile formulations and drilling muds, of a water-soluble acrylic copolymer consisting of at least one monomer with ethylenic unsaturation and a carboxylic function, at least one non-ionic monomer with ethylenic unsaturation, at least one oxyalkylated monomer with ethylenic unsaturation terminated by a hydrophobic branched and non-aromatic chain with 10 to 24 carbon atoms, and possibly at least one monomer with at least two ethylenic unsaturations. The invention also concerns the possibly pigmented aqueous formulations obtained.

Abstract: A method for manufacturing a water-soluble acrylic polymer, fully or partially neutralized by at least one monovalent agent and at least one divalent agent, by contacting the monovalent agent, the divalent agent, and a water-soluble acrylic polymer in acid form in an aqueous solution. Polymer obtained. The polymer obtained is limpid, and advantageously has a polymolecularity index between 1.5 and 3.0 for a molecular weight between 5,000 g/mol and 15,000 g/mol.

Abstract: The invention pertains to a new method for formulating any agrochemical active ingredient so as to protect the user, protect this active ingredient from outside stresses, and control its release kinetics. It relies on the use of acrylic and thickening emulsions with a pH greater than five and containing hydrophobic groups in order to trap said active ingredient. The invention also pertains to the various embodiments of the active ingredient thereby formulated: a mixture in water of that active ingredient with these thickening emotions, a dispersion of solid particles of these polymers and this active ingredient after a certification, and the solid particles obtained in a dried state after the water has been removed. Finally, the invention pertains to the use of these various formulations in order to protect and active ingredient, protect its user, and slow its release kinetics.

Abstract: The invention relates to a water-soluble copolymer having at least one alkoxy or hydroxyl polyalkylene glycol function grafted onto at least one ethylenically unsaturated monomer, as an agent to improve the activation of the optical brightness of the end product, in the fields of paper, textile, detergents and paint.