Patent ID: 6106763
Filing Date: 2000-08-22
Classification: A22C,C08B,D01F

Abstract:
A process for producing cellulosic moldings from cellulose comprising the steps of:(a) forming a cellulose-water mixture by treating the cellulose hydrothermally with water in an water/cellulose ratio on a weight basis of at least 1 at a temperature in the range from about 100 to about 200.degree. C. and under a pressure in the range from about 0.1 to about 1.5 MPa,(b) dissolving the treated cellulose in an aqueous solution of alkali metal hydroxide at a temperature of least 0.degree. C. to form a homogeneous alkaline cellulose solution containing from about 5 to about 10% by weight cellulose and a maximum 10% by weight alkali metal hydroxide, and(c) forming the cellulosic moldings from said homogeneous alkaline cellulose solution by contacting and coagulating with an aqueous solution containing from about 1 to about 30% by weight of an acid.