Copolyesters capable of forming and anisotropic melt

Details Copolyesters capable of forming and anisotropic melt Copolyesters capable of forming and anisotropic melt

C - Chemistry, Metallurgy

08

G

402/191, 402/204

C08G 63/18 (2006.01)

Patent

CA 1092745

ABSTRACT OF THE DISCLOSURE This invention relates to a class of novel fiber- forming, melt-spinnable copolyesters capable of forming an anisotropic melt, said copolyester consisting essentially of units of the formula I Image , II Image and III Image wherin units II and III are present in substantially equimolar amounts; Ar is selected from the group of chloro- methyl-, 2,6-dichloro-, 2,6-dimethyl-1,4-phenylene or chloro-4,4'-bisphenylene radicals; the copolyester contain- ing from 15-70% by weight of unit I, and to the fibers and other shaped articles prepared therefrom. Also comprehended by this invention are the novel, optically anisotopic polyester melts from which these shaped articles can be prepared.

289410

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