Anisotropic melt polyesters of 6-hydroxy-2-naphthoic acid

Details Anisotropic melt polyesters of 6-hydroxy-2-naphthoic acid Anisotropic melt polyesters of 6-hydroxy-2-naphthoic acid

C - Chemistry, Metallurgy

08

G

402/33

C08G 63/60 (2006.01) C08G 63/682 (2006.01)

Patent

CA 1207492

TITLE OF THE INVENTION ANISOTROPIC MELT POLYESTERS OF 6-HYDROXY-2-NAPHTHOIC ACID ABSTRACT Melt-processible polyester which is optically anisotropic in the melt phase and which consists essentially of the following molar amounts of the recurring units, with the sum of the molar amounts being 100%: (a) about 20 to about 85%, of Image (b) about 15 to about 80% of approximately equimolar amounts of (i) Image (ii) where in each of X1, X2, X3, and X4 is independently selected from H, Cl, and CH3; Ar is selected from 1,4-phenylene, 1,3-phenylene, 4,4'-oxybiphenylene, 4,4'-biphenylene, and 2,6-naphthylene; Ar1 is selected from Image n is 0 or 1. .

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