Thermally stable polyesters containing trans-4,4'-...

Details Thermally stable polyesters containing trans-4,4'-... Thermally stable polyesters containing trans-4,4'-...

C - Chemistry, Metallurgy

08

G

C08G 63/54 (2006.01) C08G 63/553 (2006.01) C08L 67/06 (2006.01) C08L 101/00 (2006.01)

Patent

CA 2118323

Melt processable copolyesters having improved thermal stability are prepared from 1,4-butanediol, minor amounts of trans-4,4'-stilbenedicarboxylic acid and trans- or cis-1,4-cyclohexanedicarboxylic acid.

L'invention se rapporte à des copolyesters pouvant être traités par fusion et présentant une stabilité thermique améliorée. Ils sont préparés à partir de 1,4-butanediol, de quantités infimes d'acide trans-4,4'-stilbenedicarboxylique et d'acide trans- ou cis-1,4-cyclohexanedicarboxylique.

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