| 摘要 |
<p>Cellulose is reacted with a carboxymethylating agent to form a lightly carboxymethylated cellulose having a degree of substitution such that it is not soluble in water, for example up to 0.4 carboxymethyl group per anhydroglucose unit. The lightly carboxymethylated cellulose is dissolved in a solvent, preferably a solvent which is not a solvent for cellulose, for example aqueous alkali. The resulting solution of cellulosic polymer can be used as a coating agent or as a bonding agent for non-woven fabric, or can be extruded to form filaments or film, or can be used to produce shaped articles or a sponge.</p> |
