Thermotropic aromatic copolyester

Details Thermotropic aromatic copolyester Thermotropic aromatic copolyester

C - Chemistry, Metallurgy

08

G

402/186, 400/762

C08G 63/60 (2006.01)

Patent

CA 1303781

P 34172 Abstract Thermotropic Aromatic Copolyester Melt processable, aromatic copolyesters containing 15 to 40 mole % of 4-oxybenzoyl moieties from 0.25 to less than 2.5 mole % of randomising moieties, which are preferably 2-6 oxy naphthoyl moieties, the balance of moieties being equimolar proportions of moieties derived from hydroquinone and isophthalic acid. The preferred polymers are made by a dispersion polymerisation process using as a dispersion aid a finely divided particulate material having at least 95% by weight of particles with at least one dimension less than 1 micron.

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