HOMOGENEOUS SYNTHESIS OF CELLULOSE ETHER IN IONIC LIQUID

Title:

HOMOGENEOUS SYNTHESIS OF CELLULOSE ETHER IN IONIC LIQUID

Document Type and Number:

Japanese Patent JP2009209361

Kind Code:

A

Abstract:

To provide a method of homogeneously synthesizing new cellulose ether.

A process of producing cellulose ether comprises the steps of dissolving cellulose in a solution containing an ionic liquid, adding at least one etherification agent into the solution in the absence of inorganic base to form cellulose ether, adding the reaction mixture to a nonsolvent for the cellulose ether obtained by the etherification reaction, thereby precipitating the cellulose ether, separating the cellulose ether, and purifying the cellulose ether. The cellulose ether obtained shows a new substituent distribution on the polymer chain to give new characteristics and applications.

Inventors:

MOELLMANN EUGEN
HEINZE THOMAS
LIEBERT TIM
KOEHLER SARAH

Application Number:

JP2009024686A

Publication Date:

September 17, 2009

Filing Date:

February 05, 2009

Export Citation:

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Assignee:

SE TYLOSE GMBH & CO KG

International Classes:

C08B11/08; C08B11/145

Domestic Patent References:

JPS60177002A	1985-09-11
JP2008156623A	2008-07-10
JPS60177002A	1985-09-11
JP2008156623A	2008-07-10

Other References:

JPN7013003162; Ｇｅｍｅｉｎｅｒ，　Ｐｅｔｅｒ　ｅｔ　ａｌ: 'Ｐａｒｔｉｔｉｏｎ　ｍｅｃｈａｎｉｓｍ　ｏｆ　ａｄｓｏｒｐｔｉｏｎ　ａｎｄ　ｔｈｅ　ａｂｓｅｎｃｅ　ｏｆ　ｄｉｓｐｌａｃｅｍｅｎｔ　ｐｈｅｎｏｍｅｎａ　ｉｎ　ｔｈｅ　ｚｏｎａｌ　ａｎａｌｙｔｉｃａｌ' Ｃｏｌｌｅｃｔｉｏｎ　ｏｆ　Ｃｚｅｃｈｏｓｌｏｖａｋ　Ｃｈｅｍｉｃａｌ　ＣｏｍｍｕｎｉｃａｔｉｏｎｓＶｏｌ．５４，　Ｎｏ．９, 1989, ｐ．２３７５-２３８５
JPN7013003163; 旧チェコスロバキア発明者証 , ＣＳ２１７４５８
JPN7013003162; Ｇｅｍｅｉｎｅｒ，　Ｐｅｔｅｒ　ｅｔ　ａｌ: 'Ｐａｒｔｉｔｉｏｎ　ｍｅｃｈａｎｉｓｍ　ｏｆ　ａｄｓｏｒｐｔｉｏｎ　ａｎｄ　ｔｈｅ　ａｂｓｅｎｃｅ　ｏｆ　ｄｉｓｐｌａｃｅｍｅｎｔ　ｐｈｅｎｏｍｅｎａ　ｉｎ　ｔｈｅ　ｚｏｎａｌ　ａｎａｌｙｔｉｃａｌ' Ｃｏｌｌｅｃｔｉｏｎ　ｏｆ　Ｃｚｅｃｈｏｓｌｏｖａｋ　Ｃｈｅｍｉｃａｌ　ＣｏｍｍｕｎｉｃａｔｉｏｎｓＶｏｌ．５４，　Ｎｏ．９, 1989, ｐ．２３７５-２３８５
JPN7013003163; 旧チェコスロバキア発明者証 , ＣＳ２１７４５８

Attorney, Agent or Firm:

Kenji Yoshitake
Yukitaka Nakamura
Konno Akio
Noritaka Yokota
Masaharu Takamura

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