Copolycarbonates of 3,3',5,5'-tetraalkyl-4,4'-...

C - Chemistry – Metallurgy – 08 – G

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402/174, 402/178

C08G 63/62 (1985.01)

Patent

CA 1193041

ABSTRACT OF THE DISCLOSURE The invention concerns a thermoplastic molding composition comprising an aromatic copolycarbonate which structure contains units derived from an alkylated dihydroxybiphenol and chain terminations derived from phenol or from a substituted phenol, said compositions being characterized by their high second order transition temperature. The invention further concerns a process for the preparation of said copolycarbonate resins.

422385

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