Powder paint composition
AssigneeDsm IP Assets B.V.
InventorsAntonia Urmanova, Eimbert Gerrit Belder, Jurjen Bolks, Coenraad Maarten Gehrels
Life of this patent
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Abstract
The present invention relates to a powder paint composition comprising at least (a) a thermosetting polymer having functional groups capable of reacting with β-hydroxyalkylamide units (b) a compound comprising β-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.
Claims11
A powder paint composition comprising at least:
- (a) a thermosetting polymer having functional groups capable of reacting with β-hydroxyalkylamide units
- (b) a compound comprising β-hydroxyalkylamide units and
- (c) a deceleration agent which reversibly blocks the functional groups of polymer (a) by forming a reversible bond with the functional groups of polymer (a) in the form of a hydrogen bridge, an ionic bond or a salt complex such that the curing reaction is slowed, wherein
- the deceleration agent is present in an amount sufficient to block at least 9% of the total amount of functional groups of polymer (a).
A method of decelerating the reaction between functional groups of a thermosetting polymer and β-hydroxyalkylamide units of a β-hydroxyalkylamide compound, the method comprising adding to the thermosetting polymer an effective amount of a reaction deceleration agent comprised of a tertiary compound according to formula (III) and/or (IV):
- YR1R2R3 ((III))
- or
- (YR1R2R3R4)+X− (IV)
- wherein:
- Y is N or P
- R1, R2, R3 or R4 are independently of each other, substituted or unsubstituted carbon chains with 1-50 carbon atoms in the main chain and
- X− is halide.
Dependencies are inferred from the claim text.