Abstract: The present invention relates to two-component topcoat systems comprising polyaspartic esters that contain only small amounts of dialkyl fumarates, to a process for the production thereof and for the use thereof in the production of coatings, in particular for corrosion protection, and to the use in the field of general industrial painting or in the field of ACE (agriculture, construction and earth-moving equipment) and to substrates coated therewith.

Abstract: The invention relates to aqueous two-component coating compositions based on preferably hydroxy-functional and/or amino-functional aqueous polymer dispersions and thioallophanates containing silane groups as crosslinking agents, to a method for producing them and to the use of these coating compositions for producing coatings.

Abstract: The invention relates to aqueous two-component coating compositions based on preferably hydroxy-functional and/or amino-functional aqueous polymer dispersions and thioallophanates containing silane groups as crosslinking agents, to a method for producing them and to the use of these coating compositions for producing coatings.

Abstract: The invention relates to a polyisocyanate composition, containing compounds having isocyanate groups with at least one 1,5-bridging pentamethylene unit and an isocyanate group, wherein a portion of the compounds additionally has at least one allophanate group, characterized in that the polyisocyanate composition has an isocyanurate trimer content of ?59 wt. % in relation to the total weight of the polyisocyanate composition, the allophanate groups carry a group that is organic and inert relative to isocyanate groups, and the allophanate groups are present in an equivalent ratio of >0 and ?0.19 in relation to the isocyanurate groups. The invention also relates to a method for producing the polyisocyanate, a two-component system, the use thereof for the production of a coating on a substrate, the coating and the composite formed by the coating and the substrate.

Abstract: An aqueous resin composition comprises a polyester-polyurethane resin and a dendritic polyol. The polyester-polyurethane resin is obtained by reacting, in a one-stage process or multi-stage process, a reaction mixture comprising a polyester polyol with a number-average molecular weight Mn of ?400 g/mole to ?6000 g/mole, at least one compound containing at least two isocyanate-reactive groups and at least one group capable of forming anions, and a polyisocyanate. The dendritic polyol is obtainable from a central initiator molecule or initiator polymer having at least one reactive hydroxyl group (X), which hydroxyl group (X) under formation of an initial tree structure is bonded to a reactive carboxyl group (Y) in a monomeric chain extender having the two reactive groups (X) and (Y), and wherein the chain extender has as least one carboxyl group (Y) and at least two hydroxyl groups (X) or hydroxyalkyl substituted hydroxyl groups (X).

Abstract: An aqueous composition comprises a water-emulsifiable polyisocyanate (A), the water-emulsifiable polyisocyanate (A) being a reaction product of a polyisocyanate (B) with a compound (C) which contains at least one sulfonic acid group or its anion, and at least one isocyanate-reactive group. The composition further comprises a fragrant (D1) with at least one hydroxyl and/or aldehyde group. It has been found that the addition of the fragrant (D1) can mask unpleasant odors of the composition. This is particularly the case when organic co-solvents such as propylene glycol-n-butyl ether and/or 3-methoxy-1-butyl acetate are used. The storage stability and performance of the polyisocyanates are not affected by the addition of the fragrant (D1). Further aspects of the invention are the use of a composition according to the invention as an adhesive, a coating or an impregnating material and a substrate coated with a composition according to the invention.

Abstract: An aqueous binder dispersion that includes at least one copolymer (P) containing carboxylic acid and/or carboxylate groups. The copolymer (P) includes structural units of carboxyl-free (meth)acrylic esters with a cycloaliphatic structure, and at least 25 mol % of the carboxylic acid groups of the copolymer (P) in the dispersion being present in triethanolamine-neutralized form. The aqueous binder can be used in aqueous coating materials, which can be used to coat a substrate.

Abstract: The present invention relates to novel polyesterpolyols with cyclic imide structure and to their use in coating compositions.

Abstract: The present invention relates to novel polyesterpolyols with cyclic imide and isocyanurate structure and to their use in coating compositions.

Abstract: The present invention relates to novel polyesterpolyols with cyclic imide and isocyanurate structure and to their use in coating compositions.

Abstract: The present invention relates to novel polyesterpolyols with cyclic imide structure and to their use in coating compositions.

Abstract: An aqueous binder dispersion that includes at least one copolymer (P) containing carboxylic acid and/or carboxylate groups. The copolymer (P) includes structural units of carboxyl-free (meth)acrylic esters with a cycloaliphatic structure, and at least 25 mol % of the carboxylic acid groups of the copolymer (P) in the dispersion being present in triethanolamine-neutralized form. The aqueous binder can be used in aqueous coating materials, which can be used to coat a substrate.

Abstract: The invention relates to water-dispersible polyisocyanate mixtures which is the reaction product of A) a lacquer polyisocyanate having a uretdione, isocyanurate, allophanate, biuret, iminooxadiazinedione and/or oxadiazinetrione group and prepared from monomeric diisocyanates and B) a polyalkylene oxide polyether containing at least one carboxylic acid group, wherein the polyalkylene oxide polyether is linked to the lacquer polyisocyanate through a reaction between an isocyanate group and a carboxylic acid group to form an acylated urea group or an amide bond. The invention further relates to a process for their preparation and their use as a starting component in the preparation of polyurethane plastics, in particular as crosslinking agents for water-soluble or -dispersible lacquer binders or binder components with isocyanate-reactive groups.