Abstract: The invention relates to a thermosetting coating mass, comprising a carboxyl functional polyester, and/or a carboxyl functional polyacrylate, a ?-hydroxyalkylamide, in which a portion of the hydroxyl groups are chemically blocked and/or fillers and/or heat stabilisers and/or triboadditives and/or further additives, such as, for example, dispersing and degassing agents.

Abstract: The invention relates to a thermosetting coating mass, comprising a carboxyl functional polyester, and/or a carboxyl functional polyacrylate, a &bgr;-hydroxyalkylamide, in which a portion of the hydroxyl groups are chemically blocked and/or fillers and/or heat stabilisers and/or triboadditives and/or further additives, such as, for example, dispersing and degassing agents.

Abstract: The invention relates to a process for preparing a &bgr;-hydroxyalkylamide, in which alkyl esters are reacted with &bgr;-aminoalcohols in the absence of solvents and in the presence of basic catalysts, where, to improve the selectivity, the ratio of equivalents of ester to equivalents of amine is 1:1.001 to 8.

Abstract: A powder coating is prepared by (a) solvent polymerizing carboxy-functional acrylate copolymers, (b) separating and reacting the copolymers with a molar excess of at least one epihaloalkane, (c) removing excess epihaloalkane, (d) adding toluene and then reacting the copolymers with a sodium hydroxide solution to produce epoxy groups-containing acrylate copolymers having an epoxide number of from 0.018-0.501 eq/100 g copolymer, a weight average molecular weight of from 1000-30,000 and a Tg of from 20-120.degree. C.; and (e) extruding the epoxy groups-containing acrylate copolymers with a hardener such as aliphatic polybasic acids or anhydrides, or carboxy-functional polyesters or acrylic resins along with additives such as pigments or fillers.

Abstract: A method for making glycidyl ether-functional (meth)acrylate copolymers includes the step of reacting a hydroxyalkyl-functional (meth)acrylate copolymer with an epihalohydrin in the presence of a suitable catalyst. The reactants may be reacted by an addition reaction catalyzed with a Lewis acid catalyst, followed by dehydrohalogenation with aqueous alkali solution. Alternatively, the reactants may be reacted in a phase transfer reaction employing quaternary ammonium or quaternary phosphonium phase transfer catalysts.

Abstract: Thermosetting powder coatings based on epoxide-containing acrylate copolymer resins are disclosed comprising:(A) an acrylate copolymer that contains glycidyl ether residues;(B) an aliphatic and/or cycloaliphatic polybasic acid and/or a polyol-modified anhydride of a polybasic acid and/or an amorphous or semi-crystalline carboxy-functional copolyester resin and/or a carboxy-functional acrylic resin;(C) and, optionally, fillers and/or pigments and/or additives wherein the acrylate copolymer (A) has a molecular weight (Mw) of 1,000 to 30,000 and a glass transition temperature of 20 to 120.degree. C. and is obtainable by, in a first step, preparing a hydroxyl-functional acrylate copolymer (D), which copolymer is then transformed into the acrylate copolymer (A), by reaction with epihaloalkanes. The aforementioned compositions can be processed further to give thermosetting powder coatings which can be applied to substrates such as metal to form protective coatings or films.

Abstract: Thermosetting powder coatings based on epoxide-containing acrylate copolymer resins are disclosed comprising:(A) an acrylate copolymer that contains glycidyl ether residues;(B) an aliphatic and/or cycloaliphatic polybasic acid and/or a polyol-modified anhydride of a polybasic acid and/or an amorphous or semi-crystalline carboxy-functional copolyester resin and/or a carboxy-functional acrylic resin;(C) and, optionally, fillers and/or pigments and/or additives wherein the acrylate copolymer (A) has a molecular weight (Mw) of 1,000 to 30,000 and a glass transition temperature of 20.degree. to 120.degree. C. and is obtainable by, in a first step, preparing a hydroxyl-functional acrylate copolymer (D), which copolymer is then transformed into the acrylate copolymer (A), by reaction with epihaloalkanes.The aforementioned compositions can be processed further to give thermosetting powder coatings which can be applied to substrates such as metal to form protective coatings or films.

Abstract: Thermosetting powder coating compositions include at least one glycidic-ether containing amorphous and/or semi-crystalline copolyester and a cross-linking agent which is an aliphatic and/or cycloaliphatic polybasic acid and/or its anhydride and/or a polyolmodified anhydride of a polybasic acid and/or amorphous or semi-crystalline carboxyl-functional copolyester resins and/or carboxyl-functional acrylate resins.

Abstract: A method for producing glycidic ether-containing amorphous and/or semi-crystalline copolyesters involves first producing a hydroxyl-functional amorphous or semi-crystalline copolyester, and then converting such hydroxyl-functional copolyester with an epihaloalkane to form the desired glycidic ether-containing copolyester.