Patent ID: 6143884
Filing Date: 2000-11-07
Classification: C08B

Abstract:
A manufacturing process of cellulose solution with low viscosity, comprising the steps of:(a) adding a predetermined amount of a cellulose and polymerization anti-decay additive into a mixing chamber;(b) fully mixing a main solvent, N-methyl morpholine oxide, with an additional solvent, N-methylolcaprolactam, in a predetermined weight proportion to produce a cellulose solvent;(c) evenly mixing a predetermined amount of said cellulose solvent, a predetermined amount of water, said cellulose, and said polymerization anti-decay additive in said mixing chamber to form a cellulose slurry, wherein pulp fibers of said pulp cellulose are fully swelled; and(d) evaporating said water in said cellulose slurry by a film type evaporator, wherein when a predetermined amount of said water is removed from said cellulose slurry, a cellulose solution with low viscosity is produced.