Fiber with improved complexation qualities and cation-exchange properties
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United States of America Patent
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May 23, 2006
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N/A
app pub date -
Feb 15, 2000
filing date -
Feb 15, 1999
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Abstract
The present invention concerns a process for treating a fiber or a fiber-based material such as a yarn, a woven, knitted or nonwoven textile material, paper, or leather, to improve its adsorption properties, wherein the following successive operations are carried out on said fiber or said material: a) applying a solid mixture of cyclodextrin(s) and/or cyclodextrin derivative(s) and/or inclusion complex(es) of cyclodextrin and/or cyclodextrin derivatives, at least one poly(carboxylic) acid and/or at least one poly(carboxylic) acid anhydride and optionally a catalyst; b) heating to a temperature in the range 150.degree. C. to 220.degree. C.; c) washing with water; and d) drying. The present invention also concerns fibers or fiber-based materials with improved cation exchange properties and improved hydrophilic characteristics.
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