Title:
PROCESS FOR PRODUCING CELLULOSE SOLUTION, CELLULOSE SOLUTION, AND PROCESS FOR PRODUCING REGENERATED CELLULOSE
Document Type and Number:
WIPO Patent Application WO/2007/049485
Kind Code:
A1
Abstract:
Cellulose is mixed with an ionic liquid represented by the formula (1). The resultant mixture
is heated to dissolve the cellulose in the ionic liquid to produce a cellulose solution.
By this process for cellulose solution production, cellulose can be dissolved
in a relatively high concentration even when the water content is relatively
high. Even when the dissolution is conducted with heating, the cellulose thus
dissolved has suffered a relatively slight decrease in the degree of polymerization. (1)
[In the formula, R1 to R3 may be the same or different and each
represents C1-5 alkyl, C3-5 alkenyl, or alkoxyalkyl represented
by R4-O-(CH2)n- (R4 represents methyl
or ethyl); n is 1 or 2; and Y represents a halide ion, carboxylic acid ion having
1-3 carbon atoms in total, perchloric acid ion, or pseudohalide ion.]
Inventors:
MASUDA GEN (JP)
KUBOTA YUJI (JP)
OSHIMA YASUHIRO (JP)
KUBOTA YUJI (JP)
OSHIMA YASUHIRO (JP)
Application Number:
PCT/JP2006/320695
Publication Date:
May 03, 2007
Filing Date:
October 18, 2006
Export Citation:
Assignee:
NISSHIN SPINNING (JP)
MASUDA GEN (JP)
KUBOTA YUJI (JP)
OSHIMA YASUHIRO (JP)
MASUDA GEN (JP)
KUBOTA YUJI (JP)
OSHIMA YASUHIRO (JP)
International Classes:
C08J3/11; C08B16/00; C08K5/19; C08L1/02
Domestic Patent References:
| WO2005054298A1 | 2005-06-16 |
Foreign References:
| JP2006137677A | 2006-06-01 | |||
| JPH02124901A | 1990-05-14 | |||
| JP2005506401A | 2005-03-03 |
Attorney, Agent or Firm:
KOJIMA, Takashi (16-12 Ginza 2-chome, Chuo-k, Tokyo 61, JP)
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