Abstract: The invention relates to addition compounds which are obtainable by reacting a) one or more polyisocyanates containing uretdione groups with b) one or more compounds of the formula (I) Y—(XH)n??(I) with the proviso that at least 50% of the free isocyanate groups of component a) are reacted with the compounds of the formula (I) to give an intermediate which contains uretdione groups, and subsequently the intermediate is reacted with c) one or more compounds of the general formula (II) Z—NHRm??(II) with the proviso that all free NCO groups optionally still present and at least 20% of uretdione groups originally used are reacted with Z—(NHR)m. The invention further relates to the use of the addition compounds as dispersants and dispersion stabilizers, and to a process for preparing them.

Abstract: The present invention provides addition compounds, which suitable as dispersants and as dispersion stabilizers, and to the salts of the said compounds. The invention further provides processes for preparing these addition compounds, to their use as dispersants and dispersion stabilizers for organic and inorganic pigments and also fillers in organic and aqueous systems, and to pulverous or fibrous solids coated with such dispersants and intended for incorporation into liquid systems.

Abstract: The invention relates to a method of dispersing carbon nanotubes (CNTs) in a continuous phase, especially in at least one dispersion medium, the carbon nanotubes, especially without prior pretreatment, being dispersed in a continuous phase, especially in at least one dispersion medium, in the presence of at least one dispersant (dispersing agent), with introduction of an energy input sufficient for dispersing, and also to the dispersions that are obtainable in this way, and to their use. With the method of the invention it is possible for the carbon nanotubes (CNTs) to be dispersed in high concentrations and with high storage stability.

Abstract: A curable polymer mixture comprising 1.) at least one at least oligomeric addition product a) of at least one amino silane and/or thiosilane having at least one hydrolysable silane group to at least one compound having at least two terminal, ethylenically unsaturated double bonds, and/or at least one at least oligomeric addition product b) of at least one isocyanate silane and/or epoxy silane having at least one hydrolysable silane group to at least one oligomeric compound having at least three recurring units and at least one terminal hydroxyl group or terminal amino group and at least one terminal ethylenically unsaturated double bond as coupling additive, 2.) a system which can be cured by radical polymerization, comprising at least one ethylenically unsaturated polymer and/or a (meth)acrylic resin, at least one ethylenically unsaturated monomer, at least one radical initiator and optionally at least one cross-linking agent as binder 3.

Abstract: The invention concerns a composition comprising as component (A): 10% to 97% by weight, based on the total weight of the composition, of one or more monocarboxylic esters of the general formula R1—CO—OR2, in which R1 is a saturated or unsaturated, branched or straight-chain, aliphatic group having 11 to 23 carbon atoms and R2 is a branched or straight-chain aliphatic group, a cycloaliphatic group or aromatic group having 1 to 13 carbon atoms, and the sum of the carbon atoms of the groups R1 and R2 is not more than 30, the monocarboxylic ester or esters possessing a boiling point of more than 250° C. under a standard pressure of 101.3 kPa, and as component (B): 3% to 90% by weight, based on the total weight of the composition, of one or more dispersants, the composition possessing a viscosity at 25° C. of less than 5000 mPas. The invention further concerns the use of the composition as a dispersion medium, millbases obtained from the composition, and the use of the millbases.

Abstract: Curable polymer mixtures comprising at least one oligomeric addition product with hydrolyzable silane groups and additional functional groups as the mediator additive, and a curable polymer system having epoxy group-carrying polymers and curing agents, fillers and optionally addditives; polymer concrete mixtures and molded bodies produced therefrom

Abstract: The invention relates to polyesters which contain carboxy groups and which are used as dispersing agents for pigment concentrates for the colouring of thermoplastics, and to a process for their preparation. The invention further relates to the use of the polyesters as dispersing agents, and also to masterbatches which comprise pigments, thermoplastics and the polyesters.

Abstract: A metallic effect pigment with an additive, the additive being applied on at least a portion of the metallic effect pigment. The additive comprises, as structural units, at least one carboxylic acid having at least 4 carbon atoms and also at least one polyglycol ether. The carboxylic acid and the polyglycol ether are bonded covalently to one another. The disclosure is also directed to a method for producing these metallic effect pigments, and to the use thereof, as well as to a printing ink comprising the pigments.

Abstract: The invention relates to addition compounds and their salts, characterized in that the addition compounds are obtainable by reacting (a) one or more polyisocyanates having at least two isocyanate groups per molecule with (b) one or more compounds of the formula Y—(XH)n and (c) one or more compounds from the group consisting of (c1) compounds M-Q, (c2) a blocking agent for isocyanate groups, and (c3) optionally compounds of the general formula Z-Q. The invention further relates to the preparation of the addition compounds and to their use as dispersants, wetting agents and dispersion stabilizers, and also to solids coated with the addition compounds.

Abstract: The invention relates to addition compounds and their salts that comprise polypropylene oxide structures, characterized in that the addition compounds are obtainable by reacting (a) one or more polyisocyanates having at least two isocyanate groups per molecule with (b1) one or more compounds of the formula Y—XH, (b2) optionally one or more compounds of the formula G-(XH)n, (c1) one or more compounds of the general formula Z-Q and (c2) optionally one or more compounds of the general formula M-Q. The invention further relates to the preparation of the addition compounds and to their use as dispersants, wetting agents and dispersion stabilizers, and also to solids coated with the addition compounds.

Abstract: The invention relates to a method of dispersing carbon nanotubes (CNTs) in a continuous phase, especially in at least one dispersion medium, the carbon nanotubes, especially without prior pretreatment, being dispersed in a continuous phase, especially in at least one dispersion medium, in the presence of at least one dispersant (dispersing agent), with introduction of an energy input sufficient for dispersing, and also to the dispersions that are obtainable in this way, and to their use. With the method of the invention it is possible for the carbon nanotubes (CNTs) to be dispersed in high concentrations and with high storage stability.

Abstract: A curable polymer mixture comprising 1.) at least one at least oligomeric addition product a) of at least one amino silane and/or thiosilane having at least one hydrolysable silane group to at least one compound having at least two terminal, ethylenically unsaturated double bonds, and/or at least one at least oligomeric addition product b) of at least one isocyanate silane and/or epoxy silane having at least one hydrolysable silane group to at least one oligomeric compound having at least three recurring units and at least one terminal hydroxyl group or terminal amino group and at least one terminal ethylenically unsaturated double bond as coupling additive, 2.) a system which can be cured by radical polymerisation, comprising at least one ethylenically unsaturated polymer and/or a (meth)acrylic resin, at least one ethylenically unsaturated monomer, at least one radical initiator and optionally at least one cross-linking agent as binder 3.

Abstract: The invention relates to polyesters which contain carboxy groups and which are used as dispersing agents for pigment concentrates for the colouring of thermoplastics, and to a process for their preparation. The invention further relates to the use of the polyesters as dispersing agents, and also to masterbatches which comprise pigments, thermoplastics and the polyesters.

Abstract: The present invention relates to dispersing agents for pigments or extenders based on acrylic acid alkyl ester polymers, wherein at least part of the ester groups of the polymers is reacted to form acid amides, wherein the dispersing agent is obtainable by the aminolysis of ester groups of the polymers by means of amines, such as amino alkylenyl heterocycles. The invention also relates to the use of the dispersing agents according to the invention for the production of pigment concentrates and coating media, and to a process for producing the dispersing agents.

Abstract: The invention relates to copolymers, suitable as wetting agents and dispersants, obtainable by copolymerizing (a) 1 to 80 mol % of at least one ethylenically unsaturated 1,2-dicarboxylic acid derivative, (b) 2 to 80 mol % of at least one unsaturated monocarboxylic acid derivative having 12 to 30 carbon atoms, (c) 1 to 90 mol % of at least one polyalkyleneoxyallyl ether having a number-average molecular weight of up to 5000 g/mol and (d) 0 to 30 mol % of further, unsaturated monomers; and also reaction products of the copolymers with ammonia, amines, water, alcohols, amino alcohols and/or alkali metal hydroxides or alkaline earth metal hydroxides. The invention further relates to a process for preparing the copolymers and to their use as wetting agents and dispersants in coating materials and moulding compounds.

Abstract: The invention relates to addition compounds which are obtainable by reacting a) one or more polyisocyanates containing uretdione groups with b) one or more compounds of the formula (I) Y—(XH)n ??(I) with the proviso that at least 50% of the free isocyanate groups of component a) are reacted with the compounds of the formula (I) to give an intermediate which contains uretdione groups, and subsequently the intermediate is reacted with c) one or more compounds of the general formula (II) Z-NHRm ??(II) with the proviso that all free NCO groups optionally still present and at least 20% of uretdione groups originally used are reacted with Z-(NHR)m. The invention further relates to the use of the addition compounds as dispersants and dispersion stabilizers, and to a process for preparing them.

Abstract: The present invention relates to processing aids for the processing of synthetic polymer compositions based on carboxylic esters, where the processing aids include, partial esters which contain at least 18 carbon atoms, have a number-average molecular weight of from 300 to 10,000, and can be prepared by the reaction of saturated or unsaturated aliphatic and/or cycloaliphatic polycarboxylic acids or anhydrides of these with saturated or unsaturated aliphatic, cycloaliphatic and/or aromatic monoepoxides and/or monoalcohols optionally containing ether groups, where at least 10% and not more than 90% of the carboxyl groups of the polycarboxylic acids have been reacted and the polycarboxylic acids and anhydrides of these contain from 8 to 100 carbon atoms. The invention further relates to the use of these processing aids in synthetic polymer compositions, and also to synthetic polymer compositions, which comprise these processing aids.

Abstract: The invention relates to copolymers, suitable as wetting agents and dispersants, obtainable by copolymerizing (a) 1 to 80 mol % of at least one ethylenically unsaturated 1,2-dicarboxylic acid derivative, (b) 2 to 80 mol % of at least one unsaturated monocarboxylic acid derivative having 12 to 30 carbon atoms, (c) 1 to 90 mol % of at least one polyalkyleneoxyallyl ether having a number-average molecular weight of up to 5000 g/mol and (d) 0 to 30 mol % of further, unsaturated monomers; and also reaction products of the copolymers with ammonia, amines, water, alcohols, amino alcohols and/or alkali metal hydroxides or alkaline earth metal hydroxides. The invention further relates to a process for preparing the copolymers and to their use as wetting agents and dispersants in coating materials and moulding compounds.

Abstract: The present invention provides addition compounds, which suitable as dispersants and as dispersion stabilizers, and to the salts of the said compounds. The invention further provides processes for preparing these addition compounds, to their use as dispersants and dispersion stabilizers for organic and inorganic pigments and also fillers in organic and aqueous systems, and to pulverous or fibrous solids coated with such dispersants and intended for incorporation into liquid systems.

Abstract: The present invention relates to dispersing agents for pigments or extenders based on acrylic acid alkyl ester polymers, wherein at least part of the ester groups of the polymers is reacted to form acid amides, wherein the dispersing agent is obtainable by the aminolysis of ester groups of the polymers by means of amines, wherein, for the aminolysis, at least one amine is used from the group comprising a) amines of general formula NH2—R1—NR2R3, wherein R1 is a divalent alkylene radical comprising 2-4 carbon atoms and R2 and R3 are aliphatic and/or alicyclic alkyl radicals which comprise 1-12, preferably 1-6 carbon atoms and which can be the same or different, and b) amines of general formula NH2—R1-Z, wherein R1 is a divalent alkylene radical comprising 2-4 carbon atoms and Z is a 5- or 6-membered N-containing heterocycle which can comprise up to 2 nitrogen atoms or which can additionally comprise oxygen.