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Patent Searching and Data


Title:
PREPARATION OF CELLULOSE SOLUTION, AND CELLULOSE SOLUTION PREPARATION DEVICE
Document Type and Number:
Japanese Patent JPH02127434
Kind Code:
A
Abstract:

PURPOSE: To safely provide a cellulose solution for spinning solution with a simple device, by continuously supplying a cellulose suspension in a tertiary amine oxide aqueous solution onto a heated surface under a reduced pressure, spreading in layers or coats, and moving it until a homogenous solution having a specified viscosity has been formed.

CONSTITUTION: A cellulose suspension in a tertiary amine oxide (e.g.; N- methylmorpholine N-oxide or the like) aqueous solution is continuously introduced into a cylindrical vessel 2 having a stirring shaft 7 having a stirring element 8 arranged in the center through an inlet 11, the rotating speed of the stirring shaft 7 is regulated to speed the suspension on the vessel inner wall 1 heated by a heating jacket 3 in layers or coarts, the pressure in the space 15 within the vessel is reduced, the suspension is moved on the heated surface until a cellulose homogeneous solution having a viscosity of 50-15000 Pas.s has been formed, and the resulting cellulose homogeneous solution is contiguously taken out through an outlet 12, thereby, an intended solution is provided.


Inventors:
SHIYUTEFUAN TSUIKERI
BERUNTO BUORUSHIYUNAA
DEIITAA AIHINGAA
RAIMUNTO YURUKOBUITSUCHI
HAINRITSUHI FUIRUGO
Application Number:
JP21203389A
Publication Date:
May 16, 1990
Filing Date:
August 16, 1989
Export Citation:
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Assignee:
CHEMIEFASER LENZING AG
International Classes:
B01F1/00; B01J19/18; C08B1/00; C08J3/02; C08J3/09; C08J3/03; C08J5/00; C08L1/02; D01D1/02; D01F2/00; D01F2/02; (IPC1-7): C08J3/03; C08L1/00; D01D1/02; D01F2/00
Domestic Patent References:
JPS5785823A1982-05-28
JPS55118928A1980-09-12
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)