NOVEL DEHYDRATING AGENT

NOVEL DEHYDRATING AGENT

PURPOSE:To obtain a dehydrating agent having powerful water absorbing power, and high shape retentivity and bio-degradative property by using an alkali metal salt of crosslinked carboxymethyl cellulose of high water absorbing power as a dehydrating agent. CONSTITUTION:An alkali metal salt such as so...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: AOI NOBUYUKI, AWAJI HARUO, SHIROYAMA KIICHIROU, TAKAHASHI SADAO, HATA KUNIO, ITOU ATSUYA
Format: Patent
Sprache:eng
Schlagworte:
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:PURPOSE:To obtain a dehydrating agent having powerful water absorbing power, and high shape retentivity and bio-degradative property by using an alkali metal salt of crosslinked carboxymethyl cellulose of high water absorbing power as a dehydrating agent. CONSTITUTION:An alkali metal salt such as sodium or potassium or crosslinked carboxymethyl cellulose prepd. by crosslinking carboxymethyl cellulose with a crosslinking agent such as epichlorohydrin or the like having >=100-fold water absorbing power is used as a dehydrating agent. Such dehydrating agent provides a sufficient dehydrating effect with a small amt. of use, is insoluble in water, has excellent shape retentivity after absorption of water, decomposes naturally by cellulase, and generates no secondary pollution.