C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 5/134 (2006.01) C08G 18/08 (2006.01) C08L 23/06 (2006.01) C08L 23/08 (2006.01) C08L 23/36 (2006.01) C08L 35/00 (2006.01) C08L 75/04 (2006.01)
Patent
CA 2470019
The invention relates to a stabilising composition comprising a 3-arylacrylic acid ester, a polymer compound having a molecular weight of at least 2,000 and carrying side-groups having amine functions on a polymer skeleton, all of the substituents in .alpha.-position in relation to the amine nitrogen atom being different from hydrogen, and a sterically hindered phenol. The inventive stabilising composition is especially suitable for stabilising thermoplastic polyurethane against light, oxygen and heat.
L'invention concerne une composition stabilisatrice contenant un ester d'acide 3-arylacrylique, un composé polymère ayant un poids moléculaire d'au moins 2000, portant des chaînes latérales à fonctions amine sur un squelette polymère, tous les substituants étant différents de l'hydrogène en position .alpha. par rapport à l'atome d'azote d'amine, et un phénol à encombrement stérique. La composition stabilisatrice selon l'invention est notamment destinée à stabiliser du polyuréthanne thermoplastique contre la lumière, l'oxygène et la chaleur.
Appel Manfred
Heidenfelder Thomas
Basf Aktiengesellschaft
Borden Ladner Gervais Llp
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