Thermotropic, wholly aromatic polythiolesters capable of forming

Details Thermotropic, wholly aromatic polythiolesters capable of forming Thermotropic, wholly aromatic polythiolesters capable of forming

1979-05-07

1981-01-13

Phynes, Lucille M.

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

Synthetic resins

From carboxylic acid or derivative thereof

528190, 528192, 528290, 528298, 528360, C08G 6368, C08G 7526

Patent

active

042450845

ABSTRACT:
Thermotropic, wholly aromatic polythiolesters exhibit an anisotropic melt. The polythiolesters may be prepared from monomers selected such that all or substantially all of the repeating groups are thiolester groups. Alternatively, the monomers can be selected such that sufficient thiolester groups are present to impart processability to a normally non-tractable polyester. Preparation of the polythiolesters is typically accomplished by melt polymerization of an esterified aromatic mercaptan compound, either alone or with other copolymerizable monomers. The polythiolesters may be melt processed into fibers, films or other types of shaped articles.

REFERENCES:
patent: 2510567 (1950-06-01), Flory
patent: 2970168 (1961-01-01), Horn et al.
patent: 3254061 (1966-05-01), Martin et al.
patent: 3705882 (1972-12-01), Skillicorn
patent: 4067852 (1978-01-01), Calundann

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