C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 69/00 (2006.01) C08K 5/49 (2006.01) C08L 3/10 (2006.01) C08L 27/12 (2006.01) C08L 51/00 (2006.01) C08L 67/00 (2006.01)
Patent
CA 2679628
A thermoplastic molding composition characterized by its flame retardance is disclosed. The composition contains A) aromatic poly(ester) carbonate having a weight-average molecular weight of at least 25,000, B) (co)polyester and C) graft (co)polymer having a core-shell morphology, comprising a grafted shell that contains polymerized alkyl(meth)acrylate and a composite rubber core that contains interpenetrated and inseparable polyorganosiloxane and poly(meth)alkyl acrylate where the weight ratio of polyorganosiloxane/ poly(meth)alkylacrylate/ grafted shell is 70-90/5-15/5-15, D) phosphorus-containing compound, E) fluorinated polyolefin and F) boron compound having average particle diameter of 2 to 10 microns.
L'invention concerne une composition thermoplastique de moulage, caractérisée par son retard des flammes. La composition contient A) un poly(ester)carbonate aromatique ayant un poids moléculaire moyen en poids d'au moins 25 000, B) un (co)polyester et C) un (co)polymère greffé ayant une morphologie cAEur-enveloppe, comprenant une enveloppe greffée, qui contient un (méth)acrylate d'alkyle polymérisé et un cAEur en caoutchouc composite, qui contient un polyorganosiloxane et un poly((méth)acrylate d'alkyle) interpénétrés et inséparables, le rapport pondéral polyorganosiloxane/ poly((méth)acrylate d'alkyle)/enveloppe greffée se situant dans l'intervalle 70-90/5-15/5-15, D) un composé contenant du phosphore, E) une polyoléfine fluorée et F) un composé du bore ayant un diamètre moyen des particules allant de 2 à 10 microns.
Bayer Materialscience Llc
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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