Polycarbonate compositions with flame-retardant phosphorus-silicon compounds.

摘要

Process for the photographic representation dComposición polycarbonate containing set comprising an object (5) cylindrical, especially in form yourselves phosphorus-silicon general formula (III) (Ve disc having a front surface (12) r formula) wherein R1 means independientemen a surface (3) coating, by Uñate each other hydrogen or C1-C4 alkyl, R2 signific chamber (6) facing the surface (12) frontala a) an aryl radical optionally monosubstituted with ar, characterized by applying a deilo system or alkyl, or b) an alkyl moiety substituted gives lenses target (7) in which focus has do the case with aryl, or c) an aryloxy sustitfundamentalmente the front surface (12) and uid optionally case with aryl or alkyl, d) a resestá designed with a path of rays Talto alkoxy optionally substituted with aryl, e) the surface (3) coating reproduhidrógeno, and R3 means respectively independce as annular surface surrounding the image lientemente each other alkyl, aryl or front surface. substituted C1-C4 alkyl aryl same or different, m is a numerical value from 2 to 1000, and may vary the radicals R2 and R3 within the polymer chain monomer unit to monomer unit or compounds of phosphorus-silicon formula General (IV), (see formula) wherein R 2 has the abovementioned meaning, and R3 represents phenyl, cresyl or xylyl.