C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 5/3435 (2006.01) C08K 5/3462 (2006.01) C08K 5/3477 (2006.01) C08K 5/3492 (2006.01) C08K 5/353 (2006.01) C08K 5/5419 (2006.01)
Patent
CA 2408093
A stabilizer mixture containing the components (A) and (B) wherein component (A) is for example a compound of the formula (A-1) wherein A1 is hydrogen or C1-C4alkyl, A2 is a direct bond or C1-C10alkylene, and n1 is a number from 2 to 50; and component (B) is formed by two different low molecular weight sterically hindered amine compounds containing a group of the formula (I) and (II); with the proviso that components (A) and (B) are different.
Ce mélange de stabilisants contient les composants (A) et (B) et il est caractérisé en ce que le composant (A) représente, par exemple, un composé de la formule (A-1) dans laquelle A¿1? représente hydrogène ou alkyle C¿1?C¿4?, A¿2? représente une liaison directe ou alkylène C¿1?-C¿10?, et n¿1? représente un nombre compris entre 2 et 50, et en ce que le composant (B) est formé de deux composés amine, à effet stérique empêché et masse moléculaire basse, contenant un groupe de la formule (I) ou (II), à condition que les composants (A) et (B) soient différents.
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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