Patent ID: 8815135
Filing Date: 2014-08-26
Classification: A61L,B01F,B29C,C08J

Abstract:
1. A process for the manufacture of unexpanded glass-like polysaccharides, comprising: a) feeding a twin screw extruder with a polysaccharide and a plasticizer of water, said extruder comprising a turbulence section and a kneading section, wherein said kneading section is located downstream of said turbulence section, and wherein said turbulence and kneading sections apply shearing forces on said polysaccharide, and wherein said twin screw extruder does not comprise a die; b) dispersing said polysaccharide with water to obtain a molten dispersion; c) transferring said molten dispersion from said twin screw extruder to a single screw extruder, wherein said transferring step decreases water content in said molten dispersion; and d) extruding said molten dispersion with said single screw extruder that does comprise a die to obtain an unexpanded glass-like polysaccharide extrudate, wherein said extrudate is at a temperature that does not exceed about 110° C. at an exit of said die.