Abstract:
A process for preparing novel cationic flocculating agents and paper wet-end additives is disclosed wherein water-dispersible polysaccharides, colloidally dispersed in an aqueous alkaline medium are reacted with polyfunctional derivatizing reagents containing cationic groups. The resulting dispersion of derivatized polysaccharide may be used directly without further purification, e.g., as an additive for paper pulp which improves retention of pigment and paper strength.
Abstract:
A PROCESS FOR THE PREPARATION OF INHIBITED, INTACT GRANULE STARCH PRODUCTS WHICH COMPRISES THE REACTION, IN AQUEOUS MEDIA, OF A STARCH BASE AND A TRIPOLYPHOSPHATE SALT. THE THUS PRODUCED INHIBITED STARCHES DISPLAY UTILITY AS THICKENING AGENTS FOR FOOD PRODUCTS AND IN VARIOUS SIZING, COATING AND ADHESIVE APPLICATIONS.
Abstract:
Novel liquid cationic starch derivatives and methods for their preparation are described. The derivatives, prepared by reaction of starch with epichlorohydrin-ammonium hydroxide condensates, are useful as additives in the manufacture of paper wherein they increase the retention of inorganic pigments by the cellulose pulp and strengthen the resulting paper.
Abstract:
An hydroxypropylated, inhibited high amylose starch is disclosed having specified amounts of hydroxypropylation and inhibition which has excellent thin-thick properties for use in food products to be retorted. The disclosed starches give good texture to the food products in which they are used.