PROCESS FOR PREPARING STABLE DISPERSIONS OF STARCH PARTICLES

• Main Authors: Ninness Brian J, Welsch Gregory W, Hong Liang, Matteucci Michal E, Hammond David E, Young Timothy J, Ervick, JR. Donald K, Read Michael D
• Format: Patent
• Language: English
• Published: 17.11.2016
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BEER; BIOCHEMISTRY; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DERIVATIVES THEREOF; DYES; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; FILLING PASTES; IMPREGNATING OR COATING OF PAPER; INKS; METALLURGY; MICROBIOLOGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MUTATION OR GENETIC ENGINEERING; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; POLYSACCHARIDES; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; SPIRITS; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; VINEGAR; WINE; WOODSTAINS

In one or more embodiments, the present disclosure provides for a process for preparing a dispersion of starch particles in an aqueous liquid. In one or more embodiments, the process includes introducing a feed starch and the aqueous liquid into a rotor stator mixer, maintaining the feed starch and the aqueous liquid in the rotor stator mixer at a temperature ranging from a gelation temperature to less than a solubilization temperature, and shearing the feed starch into starch particles with the rotor stator mixer to form the dispersion of starch particles in the aqueous liquid. In one or more embodiments, the starch particles produced by this process have an average particle size diameter of no larger than 2 micrometers and the dispersion has 20 to 65 weight percent of the starch particles based on a total weight of the dispersion.