BigPatents India

A selective starch based cationic amylopectin adapted for use as a flocculant comprising of the general formula 1 here under. wherein the amylopectin comprise amylopectin from maize of Mol. Wt. ranging from 10 6 -107 The grafted polysaccharide of Formula-I above involves selective polysaccharide which is highly branched and high molecular wt. Amylopectin obtained from maize. The selective maize amylopectin used in the above cationic amylopectin has a molecular wt. of 10 6 -107 Importantly also, the amylopectin source from maize is much cheaper than the amylopectin source from other starch which again add to the selective benefits in the cationized amylopectin and its process for manufacture. The cationic polymeric flocculant in particular cationic amylopectin is found to be useful as a flocculating agent which would be versatile, useful and efficient as a flocculating agent and can be obtained by a simple and cost-effective process. It would be effective even at lower dosages and thus would be cost-effective also in use. It is found to have desired shear stability, controlled biodegradability and considerable shelf life. (FIG. Nil)