Polycarbonates having improved hydrolytic stability

Details Polycarbonates having improved hydrolytic stability Polycarbonates having improved hydrolytic stability

C - Chemistry, Metallurgy

08

G

402/172, 402/33,

C08G 64/08 (2006.01)

Patent

CA 1242043

-43- Abstract this invention relates to moldable polycarbonate compositions and in particular to moldable polycarbonates which have ordered, alternating repeating units derived from bis-(3,5-dimethyl-4- hydroxyphenyl)sulfone (TMBS) and 2.2-bis-(4-hyaroxyphenyl)propane (Bisphenol A) dihaloformate, or ordered, alternating repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl) sulfone (TMBS) dihaloformate and a bisphenol compound such as 2,2-bis-(4-hyaroxyphenyl)propane (Bisphenol A). Such polycarbonates exhibit improved hydrolytic stability and also excellent processability in molding application.

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