Patent ID: 6190596
Filing Date: 2001-02-20
Classification: C08B,C08L,D01F

Abstract:
A process for producing cellulosic shaped objects by extruding and coagulating a shapeable solution capable of being shaped into objects and copmrised of chemical wood pulp in a tertiary amine oxide, and optionally a liquid that does not dissolve wood pulp and is miscible with the tertiary amine oxide, the process comprising:forming the shapeable solution from a first wood pulp with a higher degree of polymerization and a second wood pulp with a lower degree of polymerization, wherein initially a solution of the first wood pulp with a higher degree of polymerization in the tertiary amine oxide and optional non-dissolving liquid, and a composition containing the second wood pulp with the lower degree of polymerization, tertiary amine oxide, and optional non-dissolving liquid, are prepared separately, and the solution and composition are subsequently at least mixed to obtain the shapeable solution, and extruding and coagulating the shapeable solution to produce cellulosic shaped objects.