Method for the removal of rust stains from fabric fibers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 15, 2000
Grant Date -
N/A
app pub date -
Apr 30, 1999
filing date -
May 1, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved method of removing rust stains from carpet and other textiles including application of ammonium bifluoride or other fluoride compounds to a rust stain. If the ammonium bifluoride is unable to remove the stain, an acidifying agent is added to the ammonium bifluoride to generate hydrofluoric acid on the stain. The unreacted hydrofluoric acid is then neutralized and removed along with the stain.
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Family
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Cited Art Landscape
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