Modified polycarbonates and a process for their preparation

Details Modified polycarbonates and a process for their preparation Modified polycarbonates and a process for their preparation

C - Chemistry, Metallurgy

08

J

204/91.79

C08J 3/28 (2006.01) C08G 64/04 (2006.01) C08G 64/40 (2006.01)

Patent

CA 1123549

ABSTRACT OF THE DISCLOSURE The present invention relates to a process for the modification of thermoplastic aromatic polycarbonates containing aromatically bonded halogen, primary alkyl, secondary alkyl and/or alkenyl substituents, characterized in that these polycarbonates are irradiated with UV light, after adding between about 1 and 5% by weight, prefer- ably between about 1 and 3% by weight, relative to the weight of polycarbonate, of photoinitiators and optionally between about 0.05 and 5% by weight, preferably between about 0.1 and 2% by weight, relative to the weight. of poly- carbonate, of flame-proofing agents. The present inven- tion also relates to the modified polycarbonates obtainable by the process according to the invention.

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