Method of preparing modified cellulose ether

Details Method of preparing modified cellulose ether Method of preparing modified cellulose ether

2005-08-23

2005-08-23

Wilson, James O. (Department: 1623)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

C536S056000, C536S084000, C536S127000, C536S123100, C536S091000, C536S030000, C536S043000, C536S090000, C536S099000, C536S044000, C536S055300, C536S120000, C536S057000, C424S488000

Reexamination Certificate

active

06933381

ABSTRACT:
Process for the production of polysaccharide ethers, e.g. cellulose ethers, are disclosed wherein salts formed during the process, e.g., sodium nitrate or sodium acetate, are converted to their corresponding acids and bases by means of an electric current, preferably in combination with a bipolar membrane and suitable catiion and/or anion membranes. The acids and bases recovered from the process can be recycled, thereby avoiding the need to provide for disposal of salts.

REFERENCES:
patent: 3835006 (1974-09-01), Fujita et al.
patent: 4110175 (1978-08-01), Ahlgren et al.
patent: 4246092 (1981-01-01), Perry et al.
patent: 4678553 (1987-07-01), Mandle et al.
patent: 4698303 (1987-10-01), Bailey et al.
patent: 4711722 (1987-12-01), Toyoshi et al.
patent: 4766161 (1988-08-01), Chlanda et al.
patent: 4802965 (1989-02-01), Puetter et al.
patent: 4885247 (1989-12-01), Datta
patent: 5143834 (1992-09-01), Glassner et al.
patent: 5294316 (1994-03-01), Schmidt et al.
patent: 6482940 (2002-11-01), Klohr et al.
patent: 2002/0016452 (2002-02-01), Obara et al.
patent: 2002/0168407 (2002-11-01), Koch et al.
patent: 1668347 (1967-12-01), None
patent: 16 68 347 (1971-09-01), None
patent: 2729305 (1995-01-01), None
patent: 61271296 (1986-12-01), None
patent: 1095101 (1989-04-01), None
patent: 1149801 (1989-06-01), None
patent: 01-149801 (1989-06-01), None
patent: 3229621 (1991-10-01), None

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