Title:
REPELLENT FLUOROCHEMICAL COMPOSITIONS
Document Type and Number:
WIPO Patent Application WO2003089712
Kind Code:
A8
Abstract:
This invention provides compositions for treating fibrous substrates to render those substrates durably repellent to water and oil and durably resistant to dry soil comprising a 1) fluorochemical urethane formed by reacting a tri- or higher order isocyanate with a fluorochemical monofunctional compound and optionally a non-fluorinated aliphatic monofunctional compound; and 2) a fluorochemical polymeric surfactant. The present invention also provides a method of treating fibrous substrates to render those substrates durably repellent to water and oil and durably resistant to dry soil comprising application of the aforementioned composition to a fibrous substrate with optionally one or more stainblocker compounds such as acrylic and methacrylic acid polymers and copolymers, sulfonated phenol-formaldehyde resins, and styrene-maleic anhydride polymers and copolymers, said application of the composition taking place either coincident with or following application of the hydrophilic anti-staining compound or compounds to the substrate. Fibrous substrates treated according to this method and fibrous substrates treated with the aforementioned compositions are also disclosed.
Inventors:
BURLEIGH MALCOLM B
CHEATHAM DAVID P
CLARK JOHN C
OTTESON A DALE
CHEATHAM DAVID P
CLARK JOHN C
OTTESON A DALE
Application Number:
PCT/US2003/004933
Publication Date:
March 17, 2005
Filing Date:
February 18, 2003
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
International Classes:
C08F214/18; C08G18/28; D06M15/27; D06M15/277; D06M15/576; (IPC1-7): D06M15/576; D06M15/277; D06M15/27; D06M15/263; C08G18/28; C08L33/16
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