Repellent fluorochemical compositions

Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Coated or impregnated woven – knit – or nonwoven fabric which... – Coating or impregnation improves soil repellency – soil...

Reexamination Certificate

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C442S093000, C106S287270, C106S287280, C106S287300, C106S287320, C528S070000, C528S391000, C560S157000, C560S351000, C564S080000

Reexamination Certificate

active

07056846

ABSTRACT:
This invention provides compositions and methods for treating fibrous substrates to render those substrates durably repellent to water and oil and durably resistant to dry soil comprising a fluorochemical urethane formed by reacting a tri- or higher order isocyanate with a fluorochemical monofunctional compound; and optionally a non-fluorinated aliphatic monofunctional compound.

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