Polycyclic pyromellitates and use thereof on polyesters and poly

Details Polycyclic pyromellitates and use thereof on polyesters and poly Polycyclic pyromellitates and use thereof on polyesters and poly

1982-09-30

1984-03-06

Tungol, Maria Parrish

Compositions

Durable finishes for textile materials, or processes of...

Oil or water repellent or soil resistant or retardant

252 88, 560 76, 560 87, 560 88, 260455R, 556413, C07C15307, D06M 1320

Patent

active

044352948

ABSTRACT:
Oligomers containing pyromellitic rings, divalent linking groups, pendant fluoroalkoxy or hydrocarbon alkoxy groups and pendant polar groups of various kinds impart soil repellency to fibers that persists after repeated laundering. An exemplary material is prepared by the reaction of pyromellitic difluoroester/diacid chloride with 1,4-butanediol (the linking group) and 3-chloro-1,2-propanediol (the pendant polar group).

REFERENCES:
patent: 3994951 (1976-11-01), Sandler
patent: 4192754 (1980-03-01), Marshall et al.
patent: 4209610 (1980-06-01), Mares et al.
patent: 4252982 (1981-02-01), Oxenrider
patent: 4321403 (1982-03-01), Oxenrider et al.

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