Title:
WATER-SOLUBLE SULFOALKYL HYDROXYL ALKYL DERIVATIVE OF CELLULOSE AND ITS USE IN GYPSUM-AND CEMENT-CONTAINING COMPOUNDS
Document Type and Number:
Japanese Patent JPH05301901
Kind Code:
A
Abstract:
PURPOSE: To provide a derivative compound which comprises a specified ionic tertiary sulfoalkyl (hydroxylalkyl) modified cellulose and, when added to gypsum or cement, can give a compound markedly improved in water retentivity, non- deflective properties, etc.
CONSTITUTION: There is provided an ionic tertiary sulfoalkyl (hydroxyalkyl) modified cellulose derivative having a degree of substitution (DS) with sulfoalkyls, especially sulfoethyls of 0.001-0.6, especially 0.01-0.5. This is added as an additive to gypsum- and/or cement-containing compounds. The average degree of the cellulose derivative is particularly desirably 100-2,500.
Inventors:
RENE KIIZEBETAA
KURAUSU SUTSUABURIKOUSUKI
BERUNAA RANGE
KURAUSU SUTSUABURIKOUSUKI
BERUNAA RANGE
Application Number:
JP3395193A
Publication Date:
November 16, 1993
Filing Date:
February 01, 1993
Export Citation:
Assignee:
WOLFF WALSRODE AG
International Classes:
C04B24/16; C04B24/38; C04B28/14; C08B11/08; C08B11/193; (IPC1-7): C08B11/08; C04B24/38; C04B28/14
Attorney, Agent or Firm:
Heiyoshi Odashima
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