METHOD OF PREPARING PREGELATINIZED, PARTIALLY HYDROLYZED STARCH AND RELATED METHODS AND PRODUCTS

Disclosed are methods relating to an extruded pregelatinized, partially hydrolysed starch prepared by mixing at least water, non-pregelatinized starch, and acid to form a starch precursor. The acid can be a weak acid that substantially avoids chelating calcium ions or a strong acid in a small amount...

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Bibliographische Detailangaben
Hauptverfasser:	SANG, YIJUN, CHAN, CESAR, LEE, CHRIS C, SONG, WEIXIN D
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BUILDING BUILDING MATERIALS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DERIVATIVES THEREOF FIXED CONSTRUCTIONS LIME, MAGNESIA METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES REFRACTORIES SLAG STRUCTURAL ELEMENTS THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	Disclosed are methods relating to an extruded pregelatinized, partially hydrolysed starch prepared by mixing at least water, non-pregelatinized starch, and acid to form a starch precursor. The acid can be a weak acid that substantially avoids chelating calcium ions or a strong acid in a small amount. In the method, pregelatinization and acid-modification of the starch precursor occurs in one step in an extruder. Also disclosed are methods of preparing board using the starch prepared according to the methods, as well as starches and boards prepared by various methods of the invention. Figure 1.