| 摘要 |
This present invention discloses a process for the recovery of polycarbonate moulded pieces, characterized in that it is applied over the surface of a moulded body comprising a diphenol-based polycarbendently hydrogen, halogen, preferably chloride or bromine, alkyl with 1 to 8 carbon atoms, cycloalkyl with 5 to 8 carbon atoms, aryl with 6 to 10 carbon atoms, preferably phenylalkyl with 1 to 4 carbon atoms, especially benzyl, m is 4 or 5, R3 and R4, individually selectable for each X, are independently hydrogen, alkyl with 1 to 6 carbon atoms, and X is carbon, providing that at least in one X atom, R3 and R4 are simultaneously alkyl, silicone varnishes with a viscosity of 5 to 10,000 mPa.s in a layer thickness of 2 to 200 mm and is subsequently hardened at temperatures above 145 degree C, preferably above 190 degree C and intervals lower than 20 minutes, preferably lower than 10 minutes and especially, lower than 8 minutes in ordinary devices.
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