Process for modifying glycol terephthalate polyesters to contain

Details Process for modifying glycol terephthalate polyesters to contain Process for modifying glycol terephthalate polyesters to contain

1975-07-09

1976-11-09

Phynes, Lucille M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 75N, 260 75S, 264340, 264343, 8108R, 8DIG6, C08G 6376, C08G 6320

Patent

active

039910350

ABSTRACT:
Glycol terephthalate polyesters are modified to contain CH.sub.2 --S or CH.sub.2 --N linkages in molecular chains of the polyester, staple fibers of good strength are prepared from the modified polyesters, fabrics are prepared from the fibers and then treated with hypochlorous acid to develop pilling resistance. The treatment cleaves polyester molecules at the CH.sub.2 --S or CH.sub.2 --N links. Precise control is provided by the amount of modifier used and the relative viscosity of the fibers before the treatment.

REFERENCES:
patent: 2647104 (1953-07-01), Shivers
patent: 3065207 (1962-11-01), Andres
patent: 3104450 (1963-09-01), Christens et al.
patent: 3335211 (1967-08-01), Mead et al.
patent: 3823117 (1974-07-01), Freudenberger et al.

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