Crosslinked phosphonoalkyl cellulose and absorbent devices incor

Details Crosslinked phosphonoalkyl cellulose and absorbent devices incor Crosslinked phosphonoalkyl cellulose and absorbent devices incor

1975-01-13

1977-04-26

Griffin, Ronald W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

8116P, 81164, 128285, 128290P, 128296, 536 87, A61F 1320, C08B 1100, C08B 1500

Patent

active

040202712

ABSTRACT:
Alkali metal and ammonium salts of crosslinked phosphonoalkyl cellulose are described which have a phosphorous content of from about 1.5% to about 4.0% by weight and a degree of crosslinking sufficient to make the modified cellulose salts essentially insoluble in aqueous media. These crosslinked phosphonoalkyl cellulose salts have significantly increased fluid absorption capacities as compared to unmodified cellulose and may be incorporated alone or in combination with other absorbent materials into catamenial tampons, sanitary napkins, diapers, and like absorbent devices.

REFERENCES:
patent: 2979374 (1961-04-01), Drake et al.
patent: 3241553 (1966-03-01), Steiger
patent: 3811834 (1974-05-01), Schwemmer et al.
patent: 3864076 (1975-02-01), Nachbur et al.
patent: 3884628 (1975-05-01), Duffy et al.
Chemical Abstracts, vol. 77, No. 2, July 10, 1972, p. 7244f.
Chemical Abstracts, vol. 77, No. 18, Oct. 30, 1972, p. 115989m.

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