High tenacity polyhexamethylene adipamide yarn having ribbon cro

Details High tenacity polyhexamethylene adipamide yarn having ribbon cro High tenacity polyhexamethylene adipamide yarn having ribbon cro

1987-05-05

1989-01-31

Gibson, Sharon A.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428373, 428374, 428395, 428397, 428401, 57243, 57248, 57253, 57260, D02G 300

Patent

active

048015032

ABSTRACT:
A polyhexamethylene adipamide yarn characterized by a tenacity greater than 4.5 g/den., an elongation of from 25-40% constituent ribbon cross-section filaments having a length to width ratio greater than 3 is disclosed. Also disclosed is the process for making such yarn including a delayed quench and a two-stage hot chest draw.

REFERENCES:
patent: 2130948 (1938-09-01), Carothers
patent: 2273105 (1942-02-01), Heckert
patent: 2939201 (1960-06-01), Holland
patent: 3994121 (1976-11-01), Adams
patent: 4055941 (1977-11-01), Rivers, Jr. et al.
patent: 4410579 (1983-10-01), Johns
patent: 4485063 (1984-12-01), Good
patent: 4523427 (1985-06-01), Carr

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