Abstract: The hydration of clays in drilling operations can be inhibited by employing an aqueous based drilling fluid containing from about 0.2 to about 5 wt % of a hydration inhibitor that comprises bis-hexamethylene-triamine, bis-hexamethylene-triamine salts, or mixtures thereof.

Abstract: A method for reducing filtrate loss of oil based drilling fluids comprising the following steps: a) preparing by emulsion polymerization an aqueous dispersion containing: i) from 20% to 60% by weight of a copolymer comprising from 60% to 90% by weight of styrene and/or vinyltoluene monomers, from 7 to 40% by weight of 2-ethylhexyl acrylate monomers and from 0.01 to 3% of polyfunctional unsaturated monomers; ii) from 40 to 80% by weight of water; iii) from 0.1% to 5% by weight of at least one surfactant; b) providing an oil based drilling fluid containing the aqueous dispersion obtained from step a), or its copolymer in powder form; c) injecting and circulating the drilling fluid in the borehole.

Abstract: 3-Esters and 3-amides of thioxanthone bearing alkyl chains of appropriate length and can be used as photoinitiators or sensitizers in photopolymerizable systems, in particular for the preparation of coatings compatible with the food use.

Abstract: Esters of alkanolamines with unsaturated, polyunsaturated or saturated C8-C36 monocarboxylic acids are additives for reducing accretion on drilling equipment (anti-accretion agents) to be used in drilling muds during drilling and completion of oil and gas wells.

Abstract: The disclosure relates to printing mediums, useful for ceramic sinterable materials, that are in powder form and are based on glycols, urea and an inorganic absorbent, to ceramic inks compositions comprising the printing mediums and to methods for decorating green or fired ceramic bodies by the use of said printing mediums and compositions.

Abstract: Paper coating compositions contain specific polyethers which are obtained by reacting a diglycidyl ether with a water soluble polyol containing at least one polyoxyethylene chain acting as deflocculants, water retention agents and gloss enhancers.

Abstract: Compositions comprising a hydraulic binder such as cement or gypsum and a hydroxypropyl guar derivative that comprises unsubstituted linear or branched C6-C8 alkyl chains possess excellent water retention characteristics.

Abstract: Personal care compositions comprising, as thickeners and suspending agents, crosslinked alkali swellable polyacrylates containing one or more acetoacetyl or cyanoacetyl groups.

Abstract: The present invention relates to a rheology modifier for ceramic glazes comprising a water-swellable granulated clay, a carboxymethyl cellulose and possibly another natural gum. In another aspect the invention relates to the ceramic glaze and the glaze slip obtained using the above rheology modifier, which can be used for glazing green or fired ceramic bodies such as artware, tableware, tile, heavy clays products and sanitaryware.

Abstract: Process for the preparation of the powdery crystalline mixtures of alpha-hydroxycarbonyl derivatives of alpha-methylstyrene dinners comprising the use of a solvent having polarity from 0 to 0.1.

Abstract: Ceramic inks comprising ceramic pigments dispersed in vehicles based on water and glycols and containing urea, and method for decorating green or fired ceramic bodies by the use of said inks.

Abstract: A glyoxal and boron free purified cationic polygalactomannan may be prepared by reacting a polygalactomannan flour, a nonionically derivatized polygalactomannan flour, or a mixture thereof, with a cationising reagent, adjusting the pH to be from about 4 to about 6; cross-linking the cationic with glyoxal, and filtering and water washing the cationic polygalactomannan to produce a glyoxalated purified cationic polygalactomannan containing not more than 70% by weight of water. In some cases it may be desirable to introduce a buffering agent to the glyoxalated purified cationic polygalactomannan to regulate the pH to from 8.0 to about 9.5, when measured at 1% (dry matter) in water. In other cases, it may be desirable to remove water to produce glyoxal free purified cationic polygalactomannan in powder form. Such compounds are particularly useful in personal care products.

Abstract: Compositions comprising a hydraulic binder such as cement or gypsum and a hydroxypropyl guar derivative that comprises unsubstituted linear or branched C6-C8 alkyl chains possess excellent water retention characteristics.

Abstract: Cationic hydrophobically modified galactomannan ethers having a cationic degree of substitution (DSC) from 0.01 to 0.5 and hydrophobic degree of substitution (DSH) below 0.001 are readily soluble in aqueous systems and useful to thicken, stabilize and condition cosmetics, detergent compositions and household cleaning products; they further improve the deposition of other ingredients on the treated surface (skin, hair or fabric).

Abstract: Tail seal compound (tail seal) for tunnelling machine comprising blown oils, more than 30% by weight of a mineral charge and fibrous material.

Abstract: Procedure for the preparation of cationic guar having DS comprised between 0.01 and 3, free from boron and suitable for the use in the cosmetic field and in household cleaning products, comprising the following steps: a) 100 parts by weight of guar flour are reacted with 3-chloro-2-hydroxypropyl trimethylammonium chloride and sodium hydroxide in from 5 to 500 parts by weight of a water and alcohol mixture containing from 20 to 50% by weight of water; b) the amount of water and alcohol is regulated in order to obtain a dispersion containing from 65 to 95% by weight of a of water and alcohol mixture containing from 30 to 50% by weight of water and the dispersion is maintained under stirring at temperature comprised between 15 and 40° C. for at least 10 minutes; c) the mixture is filtered under vacuum and dried to obtain the purified cationic guar.

Abstract: Aqueous adjuvant concentrate with improved spray drift properties and method for its preparation comprising the steps of: i) dissolving from 15 to 30% by weight, on the weight of the final concentrate, of ammonium sulfate in water; ii) adding to the solution from 1 to 10% by weight, on the weight of the final concentrate, of anionic esters of alkyl polyglycosides; iii) dispersing in the solution from 2 to 10% by weight, on the weight of the final concentrate, of hydroxypropyl guar or hydroxypropyl guar acetate; iiii) adding ammonium sulfate to the dispersion to reach an ammonium sulfate final concentration comprised between 33 and 40% by weight.

Abstract: Non aqueous water dispersible compositions comprising: I) polyisocyanates, which are made hydrophilic by reaction with a 1,3- or 1,2-nonionic diol containing one alkoxy-terminated polyoxyethylene and/or polyoxypropylene chain, II) one or more ethoxylated alcohol phosphates having at least one phosphoric group in acid form, and optionally III) a water miscible organic solvent, the compositions being useful as crosslinker for polyurethane aqueous dispersions.

Abstract: The hydration of clays in drilling operations can be inhibited by employing a an aqueous based drilling fluid containing from about 0.2 to about 5 wt % of a hydration inhibitor that comprises bis-hexamethylene-triamine, bis-hexamethylene-triamine salts, or mixtures thereof.

Abstract: Homogeneous aqueous composition containing from 10 to 350 g/Kg of ammonium sulfate and from 10 to 200 g/Kg of anionic esters of linear or branched C6-C20 alkyl polyglycosides, and diluted sprayable herbicidal formulation comprising the above homogeneous aqueous composition and from 0.01 to 5% by weight at least a herbicide.