Dsm IP Assets B.v.

Jurjen Bolks

Paulus Antonius Maria Steeman

Paulus Franciscus Anna Buijsen

Eimbert G Belder

Leendert Jan Molhoek

Juul Cuijpers

Coenraad Maarten Gehrels

Antonia Urmanova

Rubin Huang

Jochum Beetsma

Jean-Paul Van Bregt

Konraad Dullaert

Van Jean-Paul Bregt

Cornelis Johannes Barthelomeus Van Bergt

The invention relates to a resin composition comprising at least an organophosphorous compound and a branched amorphous carboxylic acid functional polyester, said polyester having a Tof at least 40&#xb0; C., said polyester comprising at least 1 to 45% mol of 2,2-dimethyl-1,3-propanediol; a Cto Caliphatic diol AD1 not including 2,2-dimethyl-1,3-propanediol; a Cto Caliphatic or cycloaliphatic diol AD2; 0.1 to 10% mol of an at least trifunctional monomer; 1 to 55% mol of terephthalic acid, wherein the % mol is based on the polyester. The powder coatings of the present invention derived upon curing at low temperature of the thermosetting powder coating compositions of the invention that were storage stable and comprised said resin composition and a crosslinker having functional groups that are reactive with the carboxylic acid groups of the polyester, have limited or no blooming, good smoothness sufficient reverse impact resistance and preferably have also good degassing limit.

Resin compositions for thermosetting powder coating compositions

The present invention relates to a powder paint composition comprising at least (a) a thermosetting polymer having functional groups capable of reacting with &#x3b2;-hydroxyalkylamide units (b) a compound comprising &#x3b2;-hydroxyalkylamide units and (c) a deceleration agent, capable of reversibly blocking the functional groups of polymer (a). The deceleration agent is present in an amount sufficient to block at least 9% of the total amount of functional groups of polymer (a). The present invention relates also to the use of a specific amine compound as a deceleration agent in a powder paint composition.

Powder paint composition

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Echt, Netherlands

Jurjen Bolks