Process for producing gel of carboxymethyl cellulose alkali metal salt
OwnerMachiko Takigami, Akihiro Hiroki +3inventors
InventorsMachiko Takigami, Akihiro Hiroki, Naotsugu Nagasawa, Kozo Miyaj, Susumu Okamura
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Abstract
To provide a method for producing a gel of a carboxymethyl cellulose alkali metal salt, in which a gel having high elasticity and strength and also having excellent water retention and durability can be obtained inexpensively and simply. The method for producing a gel of a carboxymethyl cellulose alkali metal salt of the present invention includes previously mixing a mixture containing a carboxymethyl cellulose alkali metal salt and a water retention agent and subsequently mixing the resulting mixture with an acid aqueous solution to obtain a gel.
Claims9
1-4. (canceled)
A method for producing a wet gel of a carboxymethyl cellulose alkali metal salt, comprising previously mixing a mixture containing a carboxymethyl cellulose alkali metal salt and at least one liquid and water-soluble polyhydric alcohol selected from glycerin, diglycerin, ethylene glycol, propylene glycol, 1,2-butanediol, 1,3-butanediol, 1,5-pentanediol, diethylene glycol, and polyethylene glycol;
- and subsequently mixing the resulting mixture with an acid aqueous solution to obtain a wet gel.
Dependencies are inferred from the claim text.