C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 7/26 (2006.01)
Patent
CA 2670238
The invention relates to filled polycarbonate compositions with modified resilience containing A) 10 - 90 parts by wt. of aromatic polycarbonate and/or aromatic polyester carbonate, B) 0.5 - 30 parts by wt. of rubber-modified graft polymer, C) 0. 1 - 50 parts by wt. of hollow ceramic balls, D) 0 - 20 parts by weight of a flame-proofing agent containing phosphorus, E) 0 - 40 parts by weight of vinyl(co)polymer and/or polyalkylene terephthalate, F) 0 - 10 parts by weight of other additives. Said compositions have a mechanical property profile that meets higher standards and has an improved flow behaviour during treatment. The invention also relates to a method for the production thereof, to the use thereof for producing moulded bodies and to thermoformed moulded bodies that can be obtained from the above-mentioned compositions.
L'invention concerne des compositions de polycarbonate chargées et modifiées choc contenant A) 10 à 90 parties en poids de polycarbonate aromatique et/ou de carbonate de poIyester aromatique, B) 0,5 à 30 parties en poids de polymère greffé à caoutchouc modifié, C) 0,1 à 50 parties en poids de billes de céramique creuses, D) 0 à 20 parties en poids d'agent ignifuge contenant du phosphore, E) 0 à 40 parties en poids de (co)polymère vinylique et/ou de polyalkylène téréphtalate, F) 0 à 10 parties en poids d'autres additifs, ces compositions ayant un profil de propriétés mécaniques satisfaisant à des exigences accrues et une meilleure aptitude à l'écoulement lors du traitement. L'invention porte également sur un procédé de production associé, sur leur utilisation pour fabriquer des éléments moulés et des éléments thermomoulés à base des compositions susmentionnées.
Buchholz Vera
Eckel Thomas
Feldermann Achim
Thuermer Burkhard
Bayer Materialscience Ag
Fetherstonhaugh & Co.
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