Title:
セルロースエーテルの平均分子量を減少させる方法
Document Type and Number:
Japanese Patent JP2009540098
Kind Code:
A
Abstract:
A process for reducing the average molecular weight of a cellulose ether comprises the step of contacting a cellulose ether with an acid to partially depolymerize it to a lower molecular weight in a diluent comprising at least 50 weight percent of an organic hydroxylic compound having at least one hydroxy group and at least two carbon atoms.
Inventors:
Marron, Charles Bee.
Application Number:
JP2009515388A
Publication Date:
November 19, 2009
Filing Date:
April 23, 2007
Export Citation:
Assignee:
Dow Global Technologies Incorporated
International Classes:
C08B11/02; C08B11/08; C08B11/12
Domestic Patent References:
JPS6225101A | 1987-02-03 | |||
JPH0841101A | 1996-02-13 | |||
JPH04357695A | 1992-12-10 | |||
JPS6225101A | 1987-02-03 |
Foreign References:
US1679943A | 1928-08-07 | |||
US1943461A | 1934-01-16 | |||
US4250305A | 1981-02-10 | |||
US1679943A | 1928-08-07 | |||
US1943461A | 1934-01-16 | |||
US4250305A | 1981-02-10 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Nagasaka Tomoyasu
Yoshihiro Kobayashi
Atsushi Ebiya
Takashi Ishida
Tetsuji Koga
Nagasaka Tomoyasu
Yoshihiro Kobayashi
Atsushi Ebiya