Compressed catamenial tampons with improved capabilities for abs

Details Compressed catamenial tampons with improved capabilities for abs Compressed catamenial tampons with improved capabilities for abs

1976-02-27

1977-08-30

Griffin, Ronald W.

Surgery

Respiratory method or device

Ozone or ion generation

128270, 128296, 536 87, 536 88, 536 98, A61F 1300, A61F 1320

Patent

active

040447669

ABSTRACT:
This invention is directed to a compressed catamenial tampon made up of a mass of absorbent fibers having intermixed therein a quantity of carboxymethylcellulose fibers containing free-acid carboxyl radicals and characterized by a high capacity for absorbing and retaining menstrual fluids. These carboxymethylcellulose fibers are modified by heat treatment to shorten the time it takes for such fibers to absorb a specified amount of fluid and thereby more effectively utilize their high capacity. The particular high capacity fibers are defined as carboxymethylcellulose fibers having a degree of substitution in the normally soluble range of about 0.4 to about 2.0 in which a part of the carboxyl groups are in free-acid form with the remainder in salt form.

REFERENCES:
patent: 3379720 (1968-04-01), Reid
patent: 3379721 (1968-04-01), Reid
patent: 3521638 (1970-07-01), Parrish
patent: 3589364 (1971-06-01), Dean et al.
patent: 3618607 (1971-11-01), Ells et al.
patent: 3731686 (1973-05-01), Chatterjee

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