Thermotropic liquid crystal polymer pulp and method of preparation thereof wherein said polymer comprises recurring units which contain a 2,6-dioxyanthraquinone moiety
AssigneeCelanese Corporation
InventorsJohn R. Kastelic, Larry F. Charbonneau, Thomas P. Carter, Jr.
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Abstract
A novel pulp is provided comprised of fibrils of a thermotropic liquid crystal polymer which comprises recurring units which contain a 2,6-dioxyanthraquinone moiety. Materials comprised of thermotropic liquid crystal polymers which contain such a moiety are readily broken up to form a pulp comprised of fibrils which can be incorporated into a variety of articles such as papers.
Claims18
An improved method of providing a pulp comprised of fibrils of a polymer which exhibits desirable thermal stability and chemical and solvent resistance comprising the steps of:
- providing a shaped article comprised of a polyester capable of forming an anisotropic melt phase which comprises not less than about 5 mole percent of recurring units which units comprise a 2,6-dioxyanthraquinone moiety;
- and
- masticating said shaped article to form a pulp comprised of fibrils of said polyester.
A pulp comprised of fibrils of a polyester which is capable of forming an anisotropic melt phase and which comprises not less than about 5 mole percent of recurring units which units comprise a 2,6-dioxyanthraquinone moiety.
Dependencies are inferred from the claim text.