Stiff-chain polyesters and a method of preparing them

Details Stiff-chain polyesters and a method of preparing them Stiff-chain polyesters and a method of preparing them

1995-03-27

1996-01-30

Acquah, Samuel A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528176, 528179, 528190, 528194, 528219, 528272, 528294, 528298, 528302, 528308, 5283086, 524366, 524380, 428364, C08G 6318

Patent

active

054880939

ABSTRACT:
The description relates to novel liquid-crystalline polyesters containing the following repeating units: A having the formula: ##STR1## and B having the formula ##STR2## 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.

REFERENCES:
patent: 3673139 (1972-06-01), Hrach
patent: 4031165 (1977-06-01), Saiki et al.
patent: 4395534 (1983-07-01), Shimizu et al.
patent: 5039778 (1991-08-01), Dang et al.
patent: 5041522 (1991-08-01), Dang et al.
patent: 5106940 (1992-04-01), Dang et al.
patent: 5136012 (1992-08-01), Dang et al.

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