摘要:
Copolymers ABCDE obtainable by polymerising a monomer mixture comprising olefinically unsaturated monomers A having at least one urethane group —O—CO—NH—, basic (meth)acrylic monomers B which comprise at least one tertiary amino group, alkyl(meth)acrylates C, wherein the alkyl residue is linear, branched, or cyclic, and may have from 1 to 20 carbon atoms, olefinically unsaturated compounds D having at least one hydroxyl group in the molecule, preferably hydroxyalkyl(meth)acrylates, olefinically unsaturated compounds E having none of the functional groups of monomers A and C, and no acid groups, which are neutralised to an extent of from 10% to 100% and dispersed in water, and a method of use thereof as paste resins
摘要:
A process to reduce or suppress the formation of surface defects in paint films comprising adding to an aqueous paint composition at let one of homopolymers B of butyl acrylate and copolymers BA of butyl acrylate and copolymerisable monomers A, characterised in that the mass fraction of moieties arising from the comonomers A in the copolymer does not exceed 30%, and aqueous paint compositions comprising at least one of homopolymer B of butyl acrylate and copolymers BA of butyl acrylate and copolymerisable monomers A.
摘要:
The invention relates to an ester AB of a polypropylene glycol A with fatty acids B, which ester AB can be added in the form of an aqueous emulsion to an aqueous coating composition, and a method of use of the ester AB as defoamer additive.
摘要:
A method of use of copolymers containing fluoro groups and hydroxyl groups as additives in powder coating materials, comprising mixing these component with powder coatings resins, the copolymers comprising units of the following monomers: olefinically unsaturated monomers having from 5 to 40 carbon atoms, at least one hydroxyl group, and at least one free-radically polymerizable C═C double bond, alkyl esters of monoolefinically unsaturated monocarboxylic acids or dialkyl esters of olefinically unsaturated dicarboxylic acids or mixtures thereof, and (per)fluoroalkyl esters of said carboxylic acids, and powder coating materials which comprise these additives for the purpose of improving the flow properties and the surface.
摘要:
The invention relates to an ester AB of a polypropylene glycol A with fatty acids B, which ester AB can be added in the form of an aqueous emulsion to an aqueous coating composition, and a method of use of the ester AB as defoamer additive.
摘要:
A method of use of copolymers containing fluoro groups and hydroxyl groups as additives in powder coating materials, comprising mixing these component with powder coatings resins, the copolymers comprising units of the following monomers: olefinically unsaturated monomers having from 5 to 40 carbon atoms, at least one hydroxyl group, and at least one free-radically polymerizable C═C double bond, alkyl esters of monoolefinically unsaturated monocarboxylic acids or dialkyl esters of olefinically unsaturated dicarboxylic acids or mixtures thereof, and (per)fluoroalkyl esters of said carboxylic acids, and powder coating materials which comprise these additives for the purpose of improving the flow properties and the surface.
摘要:
The invention relates to a paste resin AB which is a mixture of a water-reducible alkyd resins B and a basic acrylic copolymer resin A comprising at least one amino group-containing vinyl type monomer A1, and a method of use thereof formulating both water-borne and solvent-borne tinted paints with a wide variety of pigments.
摘要:
Water-dilutable resins ABCD, obtainable by converting aldehyde or ketone resins A, multi-functional isocyanates B, aliphatic acids C, each with at least one acid group and one group that can react with isocyanates to form a urethane or urea structure, and also an aliphatic polyether D, with at least one hydroxyl group per molecule, whereby at least one of the educts C and D is used and if necessary, neutralization with aqueous ammonia or amines, provided a compound according to C is used.
摘要:
The invention relates to a paste resin AB which is a mixture of a water-reducible alkyd resins B and a basic acrylic copolymer resin A comprising at least one amino group-containing vinyl type monomer A1, and a method of use thereof for formulating both water-borne and solvent-borne tinted paints with a wide variety of pigments.
摘要:
The invention relates to the utilization of water-dilutable condensation resin AB as dispersing agent for pigments, wherein the condensation resins have an acid value ranging from 20 mg/g to 180 mg/g and are obtained by condensation of component A containing acid groups with an acid value ranging from 30 mg/g to 240 mg/g, which are selected from amongst the group consisting of copolymers of olefinically unsaturated monomers and by dimerization or oligomerization of compounds obtained from unsaturated aliphatic carboxylic acids and polyesters B containing hydroxyl groups with a hydroxyl value ranging from 20 mg/g to 300 mg/g and a number-average molar mass Mn ranging from 500 g/mol to 5000 g/mol. The mass proportion of components A in the reaction mixture for the synthesis of the condensation resin AB amounts to 30% to 90% and that of component B amounts to 70% to 10%, with the proviso that the sum of the mass proportions of both components always amounts to 100%.