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
2006-06-06
2006-06-06
Robertson, Jeffrey B. (Department: 1712)
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...
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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Burleigh Malcolm B.
Clark John C.
Jariwala Chetan P.
Zai-Ming Qiu
3M Innovative Properties Company
Kokko Kent S.
Robertson Jeffrey B.
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