Polyarylates having improved hydrolytic stability

Details Polyarylates having improved hydrolytic stability Polyarylates having improved hydrolytic stability

C - Chemistry, Metallurgy

08

G

402/320, 402/33,

C08G 63/68 (2006.01) C08G 63/18 (2006.01) C08L 67/02 (2006.01)

Patent

CA 1250692

- 29 - POLYARYLATES HAVING IMPROVED HYDROLYTIC STABILITY Abstract This invention relates to moldable polyarylates and in particular to moldable polyarylate compositions which have repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl) sulfone (TMBS), optionally a dihydric phenol such as 2,2-bis-(4-hydroxyphenyl)-propane (Bisphenol A) and a mixture of isophthalic acid and terephthalic acid or derivatives thereof. Such polyarylates exhibit improved hydrolytic stability.

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