Triphenol type compound and polycarbonate polymer and...

Details Triphenol type compound and polycarbonate polymer and... Triphenol type compound and polycarbonate polymer and...

C - Chemistry, Metallurgy

07

C

402/177, 260/616

C07C 39/16 (2006.01) C07C 39/15 (2006.01) C07C 43/23 (2006.01)

Patent

CA 1259334

- 24 - TRIPHENOL TYPE COMPOUND AND POLYCARBONATE POLYMER AND PRODUCTION PROCESS THEREOF ABSTRACT OF THE DISCLOSURE A triphenol type compound represented by the following formula: Image wherein R1 , R2 , R3 , R4 , R5 and R6 independently represent hydrogen, a halogen, a C1-C5 alkyl group or a C1-C5 alkoxy group. The triphenol type compound can be used, as a branching agent, for the production of a polycarbonate comprising (A) a carbonic acid component unit, (B) a divalent phenol component unit, and (C) a triphenol type compound component unit derived from the above-mentioned triphenol type compound. The triphenol type compound unit (C) is used in an amount of 0.01 to 10 mole%, based on the divalent phenol component unit (B) and the intrinsic viscosity [?], determined at 25°C in methylene chloride, of the polycarbonate is 0.4 to 1.0 dl/g and - 25 - the glass transition temperature (Tg), determined by a differential scanning type calorimeter is 150°C to 300°C.

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