C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 7/12 (2006.01) C08K 5/3435 (2006.01)
Patent
CA 2251318
A photoreactive and UV-light absorbing piperidine compounds having the formula (A), or a mixture of said piperidine compound with at least one selected UV-absorber, are used as light stabilisers for paints, preferably car paints. Also disclosed is a process for stabilising paints against the decomposition of the polymer material contained in the paint caused by exposure to atmospheric oxygen, heat and/or UV light, as well as the thus stabilised paints.
L'invention concerne l'utilisation comme agents photostabilisateurs de peintures, notamment de peintures pour automobiles, d'un composé de pipéridine photoréactif et absorbant la lumière ultraviolette qui répond à la formule (A), ou d'un mélange de ce composé de pipéridine et d'au moins un absorbeur de rayons U.V. L'invention concerne également un procédé de stabilisation de peintures qui empêche la dégradation du matériau polymère contenu dans la peinture, causée par l'exposition à l'oxygène de l'air, à la chaleur et/ou à la lumière ultraviolette, ainsi que les peintures ainsi stabilisées.
Bechtold Karl
Ligner Gilbert
Clariant Finance (bvi) Limited
Kirby Eades Gale Baker
LandOfFree
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