Flame-resistant polycarbonates containing units deriving...

Details Flame-resistant polycarbonates containing units deriving... Flame-resistant polycarbonates containing units deriving...

C - Chemistry, Metallurgy

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C08G 64/00 (2006.01) C07C 233/75 (2006.01) C07C 311/21 (2006.01) C08G 64/12 (2006.01)

Patent

CA 2004196

CASE 2952 "FLAME-RESISTANT POLYCARBONATES CONTAINING UNITS DERIVING FROM HALOGENATED TRIPHENOLBENZAMIDO COMPOUNDS IN THEIR POLYMER CHAIN." ABSTRACT Flame-resistant thermoplastic branched polycarbonates of high molecular weight are prepared from: (1) a carbonate precursor; (2) at least one dihydroxyaromatic compound of formula: Image (I) where: R is a single bond, or a substituted or non-substituted linear or branched C1-Cs alkylene radical, or a group chosen from O, S, SO2 and CO; X and Y, which may be the same or different, are H or CH3; m and n, which may be the same or different, are whole numbers from 1 to 4; (3) at least one halogenated triphenolbenzamido compound of formula: - 2 - Image (II) where: Z is a group chosen from CO and SO2; R1 is chlorine or bromine p is 1 or 2.

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