Water-soluble fiber and a method for manufacture therefor

Details Water-soluble fiber and a method for manufacture therefor Water-soluble fiber and a method for manufacture therefor

2006-02-21

2006-02-21

Gorr, Rachel (Department: 1711)

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

C528S906000, C528S301000, C428S359000

Reexamination Certificate

active

07001976

ABSTRACT:
This invention relates to a water-soluble fiber and a method of manufacturing the fiber. The water-soluble fiber of the invention is composed of a high molecular compound with a weight average molecular weight of not less than 10,000, which high molecular compound is obtainable by reacting a polyalkylene oxide compound, which is obtainable by addition polymerization of an ethylene oxide-containing alkylene oxide and an organic compound containing two active hydrogen atoms, with a polycarboxylic acid, an anhydride thereof, a lower alkyl ester thereof, or a diisocyanate and is manufactured by spinning the same high molecular compound. The water-soluble fiber of the invention is not only high in elongation and tensile strength but is readily soluble in water.

REFERENCES:
patent: 4521586 (1985-06-01), Fujita et al.
Cowie; Polymers: Chemistry and Physics of Modern Mateirals; 1973.

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