发明名称 |
PROCESS FOR PRODUCING HIGHLY HOMOGENEOUS CELLULOSE SOLUTION |
摘要 |
Disclosed is a process for producing a highly homogeneous cellulose solution, in which a mixture of powdered cellulose with polyvinyl alcohol powder is fed in conjunction with concentrated liquid NMMO into a kneader or an extruder to produce the highly homogeneous cellulose solution. Alternatively, a kneader may be used to produce a swollen cellulose/polyvinyl alcohol paste, which is then subsequently moved into an extruder to produce the highly homogeneous cellulose solution. The cellulose solution is extruded through a nozzle into a cellulose fiber. The process is advantageous in that the highly homogeneous cellulose solution can be rapidly and inexpensively produced because the cellulose solution is produced without a vacuum distillation step or separate swelling step, and formation of fibrils is prevented, and thereby cellulose fibers with excellent flexibility and strength are produced from the cellulose solution.
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申请公布号 |
CA2400709(C) |
申请公布日期 |
2006.07.11 |
申请号 |
CA20022400709 |
申请日期 |
2002.08.28 |
申请人 |
HYOSUNG CORPORATION |
发明人 |
LEE, TAE-JUNG;CHOI, SOO-MYUNG;BANG, YUN-HYUK;HAN, SEOK-JONG |
分类号 |
D01F2/02;C08B1/00;C08J3/09;C08J3/11;C08K5/357;C08L1/02;C08L29/04;D01F2/00 |
主分类号 |
D01F2/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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