Stabilizer mixtures

C - Chemistry – Metallurgy – 09 – K

Patent

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Details

C09K 15/30 (2006.01) C08J 3/20 (2006.01) C08K 5/34 (2006.01) C08L 23/02 (2006.01)

Patent

CA 2406951

A stabilizer mixture containing the components (A), (B) and (C) wherein component (A) is for example a compound of the formula (A-1) wherein A1 is hydrogen or C1-C~4alkyl, A2 is a direct bond or C1-C10alkylene, and n1 is a number from 2 to 50; component (B) is a low molecular weight sterically hindered amine compound containing a group of the formula (I) or (II); and component (C) is a high molecular weight sterically hindered amine compound containing a group of the formula (I); with the proviso that components (A), (B) and (C) are different.

Ce mélange de stabilisants contient les composants (A), (B) et (C) et est caractérisé en ce que le composant (A) représente, par exemple, un composé possédant la formule (A-1) dans laquelle A1 représente hydrogène ou alkyle C1-4, A2 représente une liaison directe ou alkylène C1-C10, et n1 représente un nombre compris entre 2 et 50, en ce que le composant (B) représente un composé amine, à effet stérique empêché et masse moléculaire basse, contenant un groupe de la formule (I) ou (II), et en ce que le composant (C) représente un composé amine, à effet stérique empêché et masse moléculaire élevée, contenant un groupe de la formule (I), à condition que les composants (A), (B) et (C) soient différents.

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