| abstract |
The invention relates to a thermosetting powder paint composition comprising (i) a polymer that contains crosslinker-reactive groups, (ii) a crosslinker that contains epoxy groups, the crosslinker comprising at least a C5-C26 linear or branched aliphatic chain and having an epoxy functionality greater than 1, the epoxy group being present on the aliphatic chain, (iii) at least a catalyst for the reaction of polymer (i) with crosslinker (ii), (iv) at least a stabilizer, (v) optionally other additives, (vi) optionally pigment or colourants. Stabilizer (iv) is a phosphite that comprises at least a group according to formula (1), where R1 is an aliphatic group, R2 is an aliphatic or aromatic group, R3 is an aromatic group, and where each aliphatic and aromatic group may be substituted. |