Dsm IP Assets B.v.

Dsm N.v.

Coenraad Maarten Gehrels

Eimbert G Belder

Tosko A Misev

Fokeltje A Koldijk

Antonia Urmanova

Jurjen Bolks

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

The invention relates to a powder paint composition comprising a polymer that contains endomethylene tetrahydrophthalic acid units and a crosslinker. The polymer is obtained by preparing an unsaturated polymer in a first step, which then reacts with cyclopentadiene at a temperature between 160 &deg; C and 220 &deg; C in a second step. The polymer preferably contains more than 10 wt.% endomethylene tetrahydrophthalic acid units and is preferably an unsaturated polymer.

Powder paint binder composition

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Zwolle, Netherlands

Coenraad Maarten Gehrels