New stiff-chain polyesters and a method of preparing them

Details New stiff-chain polyesters and a method of preparing them New stiff-chain polyesters and a method of preparing them

C - Chemistry, Metallurgy

08

G

C08G 63/183 (2006.01) C08G 63/19 (2006.01) C08G 63/199 (2006.01) C08G 63/672 (2006.01) C08L 67/02 (2006.01) D01F 6/62 (2006.01) D01F 6/92 (2006.01)

Patent

CA 2145457

The description relates to novel liquid-crystalline polyesters containing the following repeating units: A having the formula: Image (I) and B having the formula Image (II) The novel polyesters are of use e.g. as starting materials for production of fibres with improved mechanical properties. They can either be converted as such into fibres or can be added to conventional fibre-forming matrix polymers.

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