Flame-retardant polycarbonate moulding materials iv
Номер патента: EP2928949A1
Опубликовано: 14-10-2015
Автор(ы): Matthieu JUNG, Sven Hobeika, Thomas Eckel
Принадлежит: BAYER MATERIALSCIENCE AG
Опубликовано: 14-10-2015
Автор(ы): Matthieu JUNG, Sven Hobeika, Thomas Eckel
Принадлежит: BAYER MATERIALSCIENCE AG
Реферат: The invention relates to flame-retardant, impact-modified polycarbonate (PC) compositions and moulding materials which display good mechanical properties, good chemical resistance and high hydrolysis stability, and contain: A) 95.0 parts by weight of aromatic polycarbonate and/or aromatic polyester carbonate; B) 1.0 - 15.0 parts by weight of rubber-modified graft polymerisates; C) 1.0 - 9.5 parts by weight of at least one cyclic phosphazene according to formula (X), in which k stands for 1 or a whole number from 1 to 10, preferably a number from 1 to 8 and particularly from 1 to 5, in which the proportion of trimers (k=1) lies between 60 and 98 mol.-% in relation to component C, and where R is the same or different in each case and stands for an amine group, C 1 - to C 8 -alkyl that, if required, is halogenated, preferably halogenated with fluorine and is preferably methyl, ethyl, propyl or butyl, C 1 -to C 8 alkoxy, preferably methoxy, ethoxy, propoxy or butoxy, C 5 -to C 6 -cycloalkyl which, if required, is substituted with alkyl, preferably C 1 -C 4 -alkyl and/or halogen, preferably chlorine and/or bromine, C 6 -to C 20 -aryloxy which, if required, is substituted with alkyl, preferably C 1 -C 4 -alkyl, and/or halogen, preferably chlorine, bromine and/or hydroxy, and is preferably phenoxy, naphthyloxy, C 7 -to C 12 -aralkyl which, if required, is substituted with alkyl, preferably C 1 -C 4 -alkyl and/or halogen, preferably chlorine and/or bromine, and is preferably phenyl-Ci-C/i-alkyl, or a halogen group, preferably chlorine, or an OH group; D) 0 - 15.0 parts by weight of rubber-free vinyl(co)polymerisate polyalkylene terephthalate; E) 1.0 - 25.0 parts by weight of talc with an average particle size d so between 0.1 and 4.0 μm; F) 0 - 5.0 parts by weight of additives; and G) 0.05 to 5.0 parts by weight of an anti-dripping agent; in which all the weight part indications are standardised such that the sum of the weight parts of all the components A+B+C+D+E+F+G in the composition equals 100. The application also relates to the use of the compositions for producing moulded elements, as well as to the moulded elements produced from said compositions.
Flame-retardant polycarbonate moulding materials iv
Номер патента: CA2893890A1. Автор: Thomas Eckel,Mathieu JUNG,Sven Hobeika. Владелец: BAYER MATERIALSCIENCE AG. Дата публикации: 2014-06-12.