Hydrophobic microporous materials and process for producing...

Details Hydrophobic microporous materials and process for producing... Hydrophobic microporous materials and process for producing...

C - Chemistry, Metallurgy

08

J

18/12

C08J 9/00 (2006.01) B01D 67/00 (2006.01) C08J 9/28 (2006.01) C08J 9/36 (2006.01) C08J 9/40 (2006.01)

Patent

CA 1075862

ABSTRACT OF THE DISCLOSURE A normally hydrophilic microporus material having a polymeric matrix and a filler dispersed throughout the matrix wherein the filler contains active polar groups, is rendered hydrophobic by exposing the material to a reactive compound. In one preferred embodiment of the invention the reactive compound is a silane or a silazane whereas in another preferred embodiment the reactive compound is a Werner-type complex of fatty acids coordinated with a metal. The treated microporous material is rendered impervious to water-based liquids but remains pervious with respect to vapors or gases, and may be utilized in the fabrication of breathable water repellant clothing and upholstery.

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