Avtex Fibers Inc.

Rohm and Haas Company

Fmc Corporation

Frederick R Smith

David Witiak

Walter W Toy

Alloy rayon fiber of regenerated cellulose and an at least partially neutralized copolymer of acrylic or methacrylic acid and a comonomer selected from an hydroxyalkyl (C.sub.2 -C.sub.6) ester of such acid or a styrenic monomer. The copolymer is present in an amount effective to increase the fluid holding capacity of the fiber. Masses of the fibers are useful as surgical dressings, tampons and other fluid-absorbing articles.

Alloy rayon fibers of regenerated cellulose and copolymeric acrylic acid

Article of manufacture comprising alloy fibers having high fluid-holding capacity, the alloy fibers being comprised of a matrix of regenerated cellulose having carboxymethylcellulose uniformly dispersed therein, the latter being the sole additive for increasing the fluid holding capacity of the fibers.

High fluid-holding alloy rayon fiber mass

Alloy fibers having high fluid-holding capacity, and a method for making the same, the alloy fibers being comprised of a matrix of regenerated cellulose having 5 to 25 weight percent of alkali metal salts of cellulose sulfate being dispersed therein. The sulfate salts may be present in combination with anionic polymer. The high fluid-holding capacity is at least 4.8 ml per grams as measured by the Demand Absorption Test.

Fibers of high fluid holding capacity

Alloy rayon staple fibers containing about 15 to 35% sodium carboxymethylcellulose based on the weight of cellulose ('b.o.c.') and having high fluid holding capacity at least 5.5 cc per gram (such as in the range of up to about 7 cc/g) measured by the Syngyna test.

Alloy rayon

Alloy fibers having high fluid-holding capacity, and a method for making the same, the alloy fibers being comprised of a matrix of regenerated cellulose having polyvinylpyrrolidone dispersed therein. The polyvinylpyrrolidone may be present in combination with an anionic polymer.

Alloy rayon fibers having dispersed therein an amide polymer and a

Rayon fibers made by spinning a viscose containing dissolved starch. Starch grains may be slurried in water, then made alkaline with NaOH to form a solution and then added to viscose.

Rayon fibers containing starch

Fibers of high fluid-holding capacity

Method for making alloy fibers having high fluid-holding capacity, the alloy fibers being comprised of a matrix of regenerated cellulose having alkali metal salts of alginic acid uniformly dispersed therein.

Article and method for making high fluid-holding fiber mass

Method for making alloy fibers having high fluid-holding capacity, the alloy fibers being comprised of a matrix of regenerated cellulose having polyvinylpyrrolidone uniformly dispersed therein.

Method for making high fluid-holding fiber mass

Alloy fibers having high fluid-holding capacity being comprised of a matrix of non-derivatized regenerated cellulose having regenerated cyanoethyl cellulose and polyvinylpyrrolidone uniformly dispersed therein.

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Toms Brook, VA, United States of America

Frederick R Smith