Procedure for depolymerising polysaccharides using UV vis light irradiation catalyzed by a radical photoinitiator. The polysaccharides obtained with the procedure of the invention have a average number molecular weight comprised between 5 000 and 500 000 and when dissolved in water give solutions with high concentra...

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.

Method for decorating green or fired ceramic bodies by inkjet printing comprising the use of a ceramic inkjet ink which is prepared by milling a ceramic inorganic pigment in an organic medium in the presence of a dispersant which is the reaction product of a polyethyleneimine and a ricinoleic acid polyester, until t...

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

Compound of Formula (1); wherein: Z is an organic radical comprising w amino groups in which w is a number and 5 = w = 3 000; A and B are independently oxy C C aIkyIene carbonyl groups or oxy C C alkenylene carbonyl groups derived from hydroxy carboxylic acids or lactones; T is hydrogen or R CO  where R is a C C hyd...

The present disclosure relates to a process for making ceramic tiles characterized by the addition to the ceramic raw materials of an aqueous slurry comprising a swellable clay of the smectite family a binder and a water soluble salt of a monovalent cation.

Ceramic inkjet inks comprising ceramic inorganic pigments having average particle size between 0.1 and 0.8 µm an organic medium and a dispersant the dispersant being the reaction product of a polyethyleneimine with a homo or co polyester based on lactic acid and method for decorating green or fired ceramic bodies by...

A concentrated aqueous composition may be prepared by from a formulation including: a. from 10 to 30 % by weight (% wt) of a depolymerized carboxymethyl cellulose having a weight average molecular weight of from about 10 000 to about 80 000 dalton (Da); b. from 15 to 50% of a compatibilizer selected from the group c...

A method of treating a portion of a subterranean formation through the use of an aqueous fracturing fluid comprising dissolved therein from 0.3 to 3.0% by weight of a viscosifying agent wherein the viscosifying agent consists of fast dissolving and easy dispersible glyoxalated ground guar splits containing from 0.01...

Water in oil subterranean treatment fluids with improved stability and environmental compatibility comprise esteramides as emulsion stabilizer.

Use of extruded pellets comprising carboxymethyl cellulose and at least another ceramic glaze additive for the preparation of ceramic glaze slips.

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 us...

The present invention relates to a hydrocarbon free emulsion stabilizer to water in oil subterranean treatment fluids comprising said stabilizer and having improved stability and environmental compatibility and to their use in subterranean treatments.

Aqueous dispersions containing anionic polyurethanes are prepared by reacting a prepolymer A), obtained from aliphatic or cycloaliphatic diisocyanates, polytetramethylene glycol and one or more anionic or potentially anionic polyols, with a chain extender B) which is a diamine sulfonate salt; the dispersion have a m...

Stable herbicidal compositions containing an ethoxylated esteramine as adjuvant.

Process for the preparation of aqueous polyurethane dispersions, containing from 20 to 50% by weight of an anionic polyurethane having a mean particle size from 1 to 15 micron and providing films with durable low gloss aspect.

Aqueous inkjet ink for textile inkjet printing comprising dispersed pigments and a binder which is a carboxylated polyurethane having blocked isocyanate groups and method for using the same.

Carboxylated polyurethane having blocked isocyanate groups for use as binder in aqueous pigmented inkjet inks.

An aqueous adjuvant concentrate can be prepared using a formulation including: a. from about 15 to about 45 % by weight of a potassium salt chosen among di potassium phosphate potassium sulfate potassium nitrate tri potassium citrate potassium salts of ethylenediaminetetraacetic acid and mixture thereof; b. ...

Method for inhibiting the swelling and the dispersion of shales in the treatment of subterranean shale formations comprising the use of a cationic tamarind gum and fluids for the treatment of subterranean shale formations comprising a cationic tamarind gum.

The disclosure relates to printing mediums  useful for ceramic sinterable materials  hat 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 m...

The present invention relates to agrochemical oil dispersions and methods of preparation thereof, wherein said agrochemical oil dispersions contain thickeners selected among N-acyl amino acid alkylamides.

A method of minimizing the weight loss of mass of the drilling pipe and wellbore casing while drilling a subterranean well with an oil-based drilling fluid comprising adding to the oil-based drilling fluid an anti-wear additive based on sulfated, sulfonated or sulfited natural oils or fats of vegetable or animal ori...

Hydrophobically modified crosslinked acrylic polymers possessing good suspending and thickening capability and providing homogeneous and very clear formulation in the presence of surfactants and electrolytes, even at low pH, and aqueous personal care compositions comprising said hydrophobically modified crosslinked ...

Method for inhibiting the swelling and/or the dispersion of shales during the treatment of subterranean shale formations comprising the steps of: a) providing a subterranean treatment fluid comprising from 0.001 to 10% by weight of a polyester obtained by reacting a dicarboxylic acid having from 2 to 8 carbon atoms ...

The present invention relates to emulsion stabilizing agents, to subterranean treatments fluids comprising said emulsion stabilizing agents and to a method of treating subterranean formations using said subterranean treatments fluids. These emulsion stabilizing agents, besides having excellent emulsifying properties...

Aqueous composition comprising expanded and expandable microspheres, polymeric binder and optionally other additives, and method of repairing and finishing defective crust leathers comprising: A) repairing the defective crust leathers by i) applying on the crusts a layer of the aqueous composition comprising expande...

Method of improving the rate of penetration of the drilling bit when drilling a wellbore through unstable clayey soils and of reducing the soil disaggregation, the method comprising drilling the well in the presence of a water based drilling fluid that contains a dual function additive that improves the lubrication ...

A process for making tiles comprising: i) mixing the ceramic raw materials; ii) dry-grinding the ceramic raw materials or wet-grinding the ceramic raw materials and spray drying the ceramic slip obtained from the wet-grinding; iii) forming green tiles by pressing the powdery grinded ceramic raw materials obtained fr...

The present invention relates to a method for coating a paper substrate comprising: i) providing a paper substrate; ii) applying to the paper substrate an aqueous barrier coating composition having a solids content from 10 to 60 wt% (% by weight) and comprising from 20 to 100 wt% of a modified cutin extract, wherein...

The present invention relates to a biodegradable conditioning agent comprising from 60 to 90 % by weight a cationic tamarind having a maximum DScat of 0.27, particularly having a minimum DScat of 0.02 or 0.06 and a maximum DScat of 0.27, from 1.0 to 8.0 % by weight of (2,3-dihydroxypropyl)trimethyl ammonium chloride...