Crosslinked phosphonoalkyl cellulose and absorbent devices...

Details Crosslinked phosphonoalkyl cellulose and absorbent devices... Crosslinked phosphonoalkyl cellulose and absorbent devices...

C - Chemistry, Metallurgy

08

B

2/113, 260/217

C08B 15/00 (2006.01) A61F 13/20 (2006.01) A61L 15/28 (2006.01) C08B 11/00 (2006.01) C08B 11/10 (2006.01)

Patent

CA 1039273

ABSTRACT OF THE INVENTION 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. -1-

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