Alkylated fluorochemical oligomers and use thereof in the...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

Reexamination Certificate

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C524S462000

Reexamination Certificate

active

07049379

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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