Water-soluble cellulose ether having improved filtering...

Details Water-soluble cellulose ether having improved filtering... Water-soluble cellulose ether having improved filtering...

2005-11-01

2005-11-01

Wilson, James O. (Department: 1623)

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

Organic compounds

Carbohydrates or derivatives

C536S056000, C536S095000, C536S099000

Reexamination Certificate

active

06960660

ABSTRACT:
A water-soluble cellulose ether is selected by judging whether the number of undissolved fibers having a size of 16–200 μm is up to 350 fibers/2 ml in a 0.1 wt % aqueous solution of the cellulose ether at 25° C. This water-soluble cellulose ether forms an aqueous solution which can be filtered without clogging and can form a very thin film without defectives.

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Kjoniksen, Anna-Lena et al., Macromolecules; vol. 33, pp. 877-886 (Jan. 13, 2000).
Cellulose Society Ed., “Encyclopedia of Cellulose,” 2000, Asakura Publishing Co., Ltd.

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