摘要:
The invention relates to a rheology-modifying difunctional compound. The invention also provides an aqueous composition comprising a difunctional compound according to the invention and a method for controlling the viscosity of an aqueous composition using the difunctional compound according to the invention.
摘要:
The invention pertains to the field of aqueous thickening compositions, particularly for increasing the viscosity of an aqueous paint or varnish composition, a detergent composition or a cosmetic composition, in particular a cosmetic composition comprising ethoxylated surfactant compounds. The composition according to the invention comprises at least 40% by weight of water and combines a particular thickening compound and a nonionic compound comprising at least one hydrophilic saccharide group attached to at least one linear or branched hydrophobic chain.
摘要:
The present invention relates to a continuous process for preparing a comb polymer, without organic solvent, by esterification and/or amidification of an acidic homopolymer or copolymer, which consists in performing the esterification and/or amidification of said homopolymer/copolymer by reaction at elevated temperature in the mixing and transportation zone of a tubular reactor, optionally equipped with a water removal system, in the presence of at least one poly(alkylene glycol) in solid or molten form and of an antioxidant, said esterification and/or amidification taking place at a temperature greater than or equal to 170° C.
摘要:
A rheology-modifying difunctional compound prepared by reacting one molar equivalent of a non-alkoxylated compound (a) and one molar equivalent of a polyethoxylated compound (b). A method for preparing the difunctional compound by reacting one molar equivalent of a non-alkoxylated compound (a) and one molar equivalent of a polyethoxylated compound (b). An aqueous composition with the difunctional compound and an additive. An aqueous formulation with the aqueous composition, an organic or mineral pigment, and an agent. A coating formulation with the aqueous formulation. A concentrated aqueous pigment pulp with the difunctional compound and coloured organic or mineral pigment. A method for controlling the viscosity of an aqueous composition.
摘要:
A preparation of an aqueous composition that is resistant to temperature variations may include the use of at least one specific heat-stabilizing agent. The heat stabilization of the viscosity of the aqueous composition within a wide temperature range. Such heat-stabilizing agents may include, in polymerized form: (a1) an anionic monomer comprising a polymerizable olefinic unsaturation and a carboxylic acid group, optionally in salt form; (a2) a C1-C7 ester of acrylic acid, methacrylic acid, maleic acid, and/or itaconic acid; (a3) an associative monomer of a formula, R1-(EO)m-(PO)n-R2, wherein m and n are independently 0 or an integer or decimal less than 150, m or n being different from 0, EO is independently a CH2CH2O group, PO is independently a combination of (i) CH2CH2O and (ii) CH(CH3)CH2O and/or CH2CH(CH3)O, R1 is independently a group comprising a polymerizable olefinic unsaturation, and R2 is independently a straight C28-C40-alkyl group or a C28-C40-alkyl group.
摘要:
The present invention relates to a ternary mixture consisting of at least one homopolymer or copolymer of (meth)acrylic acid, partially or completely neutralized with sodium, with potassium, with lithium and/or with an amine, at least one solution of silicate or metasilicate chosen from the group consisting of a sodium silicate of formula Na2O.nSiO2 (with n varying between 1 and 4), sodium metasilicate Na2SiO3, a potassium silicate K2O.nSiO2 (with n varying between 1 and 4), potassium metasilicate K2SiO3 and a mixture of these compounds, and at least one base, as dispersion and/or grinding aid agents of kaolin in aqueous suspension.
摘要:
The present invention relates to new associative thickeners belonging to the category of HEUR (Hydrophobically modified Ethoxylated URethane), as well as intermediate aqueous compositions containing such thickeners and end formulations, for example formulations of paint, lacquer, varnish or paper coating colour.
摘要:
A diurethane compound T prepared by reacting one molar equivalent of at least one diisocyanate compound (a) and two molar equivalents of a polyalkoxylated compound (b) selected from the group consisting of monoaromatic monoalcohols (b1) comprising from 6 to 30 polyalkoxylated carbon atoms and comprising from 80 to 500 alkoxy groups, and polyaromatic monoalcohols (b2) comprising from 10 to 80 polyalkoxylated carbon atoms and comprising more than 100 and up to 500 alkoxy groups.
摘要:
A diurethane compound T prepared by reacting one molar equivalent of at least one diisocyanate compound (a) and two molar equivalents of a same polyethoxylated compound (b) including from 100 to 500 oxyethylene groups selected from the group consisting of straight aliphatic monoalcohols (b1) including from 6 to 40 carbon atoms, branched aliphatic monoalcohols (b2) including from 6 to 40 carbon atoms, and cycloaliphatic monoalcohols (b3) including from 6 to 40 carbon atoms.
摘要:
The invention relates to a rheology-modifying urethane compound. The compound comprising urethane functions of the invention can be prepared according to a method in several steps which use different compounds comprising isocyanate functions. For the preparation of the urethane compound according to the invention, a monoisocyanate compound, in particular a monoisocyanate compound resulting from the separate condensation of an asymmetric diisocyanate compound with a reactive compound, is reacted with an alkylene glycol compound in the presence of a polyisocyanate compound. The invention also provides coating compositions comprising mineral particles and a urethane compound according to the invention.