C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 69/00 (2006.01) C08K 3/34 (2006.01) C08K 5/49 (2006.01) C08L 25/12 (2006.01) C08L 51/00 (2006.01)
Patent
CA 2622186
A thermoplastic molding composition suitable for preparing articles by thermoforming is disclosed. The molding composition that comprise A) branched, aromatic poly(ester)carbonate, B) graft polymer, C) an optional vinyl(co)polymer and or polyalkylene terephthalate, D) at least one flame retarding phosphorous compound selected from the group consisting of mono- and oligomeric phosphorus and phosphonic acid esters, phosphonate amines and phosphazenes and E) talc, is characterized in that its flexural modulus at room temperature is at least 3000 N/mm2 and that its falling dart energy at break, at -30~C, is at least 40.0 J. Sheets extruded of the composition are suitable for making useful articles by thermoforming.
L'invention concerne une composition de moulage thermoplastique convenant pour préparer des articles par thermoformage. La composition de moulage qui comprend A) un poly(ester)carbonate aromatique ramifié, B) un polymère greffé, C) un (co)polymère vinylique et/ou polytéréphtalate d'alkylène facultatif, D) au moins un composé du phosphore ignifugeant sélectionné dans le groupe constitué de phosphazènes, phosphonateamines et esters de l'acide phosphoreux et phosphonique monomériques et oligomériques et E) du talc, est caractérisée en ce que son module de flexion à température ambiante est d'au moins 3000 N/mm2 et son énergie de torpille à la rupture à -30°C est d'au moins 40,0 J. Les feuilles extrudées de la composition conviennent pour fabriquer des articles utiles par thermoformage.
Buchholz Vera
Eckel Thomas
Hager Bruce
Moulinie Pierre
Wenz Eckhard
Bayer Materialscience Ag
Fetherstonhaugh & Co.
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