Plastics composition having improved weather resistance

Details Plastics composition having improved weather resistance Plastics composition having improved weather resistance

C - Chemistry, Metallurgy

08

K

C08K 5/34 (2006.01) C08K 5/3435 (2006.01) C08K 5/3462 (2006.01) C08K 5/3477 (2006.01) C08L 23/10 (2006.01) C08L 55/02 (2006.01)

Patent

CA 2280158

The invention relates to a plastics composition which contains a polymer, at least one hindered-amine light stabilizer (HALS compound) and at least one bridged amine compound having at least one N-bridgehead. Preferably the bridged amine compound is hexamethylenetetramine or diazabicyclo[2.2.2]octane or a derivative of either compound. Preferably the polymer is a propylene polymer or an acrylonitrile-butadiene-styrene copolymer (ABS). The plastics composition according to the invention has improved weather resistance.

L'invention concerne une composition de matières plastiques renfermant un polymère, au moins un photostabilisant à amine entravée (composé HALS) et au moins un composé amine ponté présentant au moins une tête de pont N. De préférence, le composé amine ponté est l'hexaméthylènetétramine, le diazabicyclo[2. 2. 2]octane ou un dérivé de l'un de ces composés. De préférence, le polymère est un polymère propylène ou un copolymère acrylonitrile-butadiène styrène (ABS). La composition de matières plastiques de l'invention présente une résistance accrue aux intempéries.

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