To obtain the subject derivative which has excellent biodegradability and further has excellent water absorbability, by irradiating a mixture comprising an alkylcellulose derivative and water with radiations.
This method for producing a self-crosslinked alkylcellulose derivative comprises irradiating a mixture comprising (A) 100 pts.wt. of an alkylcellulose derivative as a raw material (the alkyl group has one to three carbon atoms and may be substituted by one or more hydroxyl groups, or the like) and (B) 5 to 2,000 pts.wt. of water with radiations. The component A is preferably a carboxyalkylcellulose, a hydroxyalkylcellulose, an alkylcellulose or their mixture, which has at least one hydroxyl group or carboxyl group per glucose unit. 20% or more of the total amount of the hydroxyl groups and carboxyl groups of the component A is especially preferably their alkali metal salts, ammonium salts or amine salts.
KUME TAMIKAZU
MURAKAMI TEI
DAICEL CHEM
JPS54163981A | 1979-12-27 | |||
JPS5056436A | 1975-05-17 | |||
JPS6434435A | 1989-02-03 | |||
JPS4814775A | ||||
JPS49128987A | 1974-12-10 | |||
JPS4322880B1 | ||||
JPH10324701A | 1998-12-08 | |||
JPS5628755A | 1981-03-20 |
WO1998031785A1 | 1998-07-23 | |||
US2895891A | 1959-07-21 |