Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1991-06-14
1992-12-22
Nutter, Nathan M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
525 5421, C08J 307, C08J 518
Patent
active
051735210
ABSTRACT:
An absorbent fibrous structure comprising salts of fibrous carboxymethyl cellulose. In this structure, polyelectrolyte complexes are formed in at least a part of the salts of fibrous carboxymethyl cellulose by cationic water-soluble polymers. Each cationic water-soluble polymer comprises repeating units having at least one of primary, secondary, tertiary and quaternary nitrogen atoms and does not substantially have functional groups for forming cross-linking other than the nitrogen atoms. According to a preferred embodiment, polyamine resin was added to a suspension of Na-salts of fibrous CMC to prepare a stock, and from this stock, an absorbent fibrous sheet is produced by a paper-making method. Then, this sheet had a high water absorbency and had high wet tensile strength even after absorbing water. Further, slime was not generated at all and the sheet-surface was neutral.
REFERENCES:
patent: 3589364 (1971-06-01), Dean et al.
patent: 4252761 (1981-02-01), Schoggen et al.
patent: 4487866 (1984-12-01), Almond et al.
patent: 5009867 (1991-04-01), Kratochvil
Culpeper Mullis Jeffrey
Mishima Paper Co., Ltd.
Nutter Nathan M.
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