Powder paint composition

W. Grisnich (Inventor), Rolf A.T.M. van Benthem (Inventor), P. Gijsman (Inventor)

Research output: PatentPatent publication

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Abstract

The invention relates to a powder paint composition comprising: a) a compound comprising hydroxyalkylamide units, b) a stabilizer, and c) a compound capable of reacting with hydroxyalkylamide units, whereby said compound a) compris­ing hydroxyalkylamide units is a branched condensation polymer containing ester groups having at least one amide group in the backbone, having at least one hydroxyalkilamide group and having a weight average molecular mass of at least 800 g/mol and, whereby said stabilizer b) is at least one phenolic anti-oxidant according to Formula (1) wherein R1is an, optionally substituted, alkyl or cycloalkyl with at least 4 C-atoms, R2 and R3 are identical or different, and can independently of each other be H, or (C1-C18) 0 (cyclo)alkyl radicals, Z is an mono-, bis- or multifunctional organic group, and n=l-4, whereby when n=l, Z contains at least 3 C-atoms or heteroatoms. The invention also relates to the powder coating obtained after curing of the powder paint composition and to wholly and partly coated substrates.
Original languageEnglish
Patent numberWO/03/099943/A1
Priority date27/05/02
Filing date27/05/03
Publication statusPublished - 4 Dec 2003

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