Copoly(carbonate/phosphonate) compositions

C - Chemistry – Metallurgy – 08 – G

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402/174

C08G 79/04 (2006.01) C08G 64/00 (2006.01) C08K 3/32 (2006.01) C08K 5/13 (2006.01)

Patent

CA 1121096

C-5032 COPOLY(CARBONATE/ PHOSPHONATE) COMPOSITIONS Abstract of the Disclosure Improved copoly(carbonate/phosphonate) composi- tions formed by reaction of a dihydric phenol, a carbonate precursor, and an organophosphorus dihalide are disclosed. The inherent viscosity and melting point of such composi- tions is increased by the presence of an effective amount of a chain branching agent, optionally in the additional presence of a chain terminating agent.

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