Alkylated fluorochemical oligomers and use thereof in the treatment of fibrous substrates
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United States of America Patent
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May 23, 2006
Grant Date -
Feb 5, 2004
app pub date -
Nov 6, 2001
filing date -
May 11, 1999
priority date (Note) -
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Abstract
This invention provides a method of treating fibrous substrates, such as leather, by contacting the substrate with a fluorochemical compound comprising: a fluorochemical oligomeric portion comprising an aliphatic backbone with a plurality of pendant fluoroaliphatic groups, each fluoroaliphatic group having a fully fluorinated terminal group and each independently linked to a carbon atom of the aliphatic backbone through an organic linking group; an aliphatic moiety; and a linking group which links the fluorochemical oligomeric portion to the aliphatic moiety. The fluorochemical compounds provide desirable oil, water and stain repellency to fibrous substrates.
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