Novel salts of carboxymethylcellulose

Details Novel salts of carboxymethylcellulose Novel salts of carboxymethylcellulose

1985-05-14

1987-03-17

Lesmes, George F.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

536 98, 604368, 604376, 1061972, B32B 900

Patent

active

046507167

ABSTRACT:
Disclosed are novel sodium salts of carboxymethylcellulose (CMC) which are substantially nonfibrous, have a degree of substitution (D.S.) of 0.2 to 0.9 and an absorbency of at least 25 g. liquid/g. the novel CMC material, and are prepared from a cellulose furnish having a degree of polymerization (D.P.) of greater than 1,000; and to processes for preparing same. Owing to their high absorbency properties, they are particularly useful in the manufacture of disposable nonwoven products, such as adult incontinence pads, feminine hygiene products, disposable diapers and surgical dressings.

REFERENCES:
patent: 3371666 (1968-03-01), Lewing
patent: 3375245 (1968-03-01), Dearborn
patent: 3619451 (1971-11-01), Gill
patent: 3621847 (1971-11-01), Roberson
patent: 3654929 (1972-04-01), Nilsson et al.
patent: 4091205 (1978-05-01), Onda et al.
patent: 4405324 (1983-09-01), Cruz
patent: 4525585 (1985-06-01), Taguchi et al.

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