TH27041A - Process for activating polysaccharides The polysaccharides produced by this process are And use - Google Patents

Abstract

Process for activating polysaccharides The polysaccharide substrate is exposed to liquid ammonia at pressure. Starting above atmospheric pressure and at least approximately 25 degrees Celsius, which is roughly the approximation of liquid ammonia. It must be sufficient to make the surface of the polysaccharide substrate. Can get wet at least The mixture was then released to the pressure, which had an available volume for the polysaccharide / liquid ammonia system. Will be increased in an explosive manner While the pressure drop is at least 5 bar.This process is particularly suitable for Cellulose, guar gum, starch and chitin are stimulated by a process method. This will result in a new cellulose modifier. Polysaccharide The reactivity is higher and the reagent is used more. During the acidic alkalation reaction, silencing, santhogenation and Carbamoelation is mostly homogenous reaction form.

Claims (2)

1.Process for activating polysaccharides Which material The polysaccharide is brought into contact with liquid ammonia at The initial pressure is higher than atmospheric pressure and at a temperature of at least about 25 ° C, the amount of liquid ammonia. It must be sufficient to make the surface of the polysaccharide substrate. At least wet The mixture is then released to release pressure. Which characterizes that the volume for the poly system Saccharides / Liquid Ammonia Will be increased explosively While the pressure drop is at least 5 bar. 2. Process by tag: