Thermoplastic blends and articles made therefrom

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 69/00 (2006.01) C08J 3/20 (2006.01) C08K 5/00 (2006.01) C08L 57/00 (2006.01) C08L 67/02 (2006.01) C09K 21/14 (2006.01)

Patent

CA 2596109

An internally lubricated thermoplastic composition consisting essentially of 5 to 50 wt. % of a polycarbonate; 35 to 90 wt. % of a polyalkylene terephthalate, a polyalkylene naphthanoate resin, or blends thereof; 0.5 to 4 wt. % of a modified polyolefin; and optionally, up to 30 wt. % of a flame retardant agent, with a balanced fatigue and dimensional stability properties. Articles molded from the composition of the invention display excellent wear performance properties.

Composition thermoplastique intrinsèquement lubrifiée essentiellement constituée de 5 à 50 % en poids d'un polycarbonate ; de 35 à 90 % en poids d'un téréphtalate de polyalkylène, d'une résine de naphtanoate de polyalkylène, ou de leurs mélanges ; de 0,5 à 4 % en poids d'une polyoléfine modifiée ; et éventuellement, de jusqu'à 30 % en poids d'un agent retardateur de flamme, avec des propriétés de résistance à la fatigue et de stabilité dimensionnelle équilibrées. Les articles moulés à partir de la composition selon l'invention présentent d'excellentes propriétés de résistance à l'usure.

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