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US 5,792,711 AGranted
Antiwetting composition for fabrics and fibrous substrates
AssigneePorous Media Corporation
InventorKeith A. Roberts
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AssigneePorous Media Corporation
InventorKeith A. Roberts
Estimating the term…
The invention covers an antiwetting composition for imparting hydrophobic properties onto fabrics and fibrous substrates, as well as a method for producing a hydrophobic article. The composition of the present invention includes a dispersion of polymeric fluoroaliphatic ester and a silicone resin prepolymer in a water-based carrier. The polymeric fluoroaliphatic ester is included in the dispersion at about 0.12 to 0.5 percent solids by weight. The silicone resin prepolymer is generally a polysiloxane having silanol terminal groups. The silicone compound is added to the dispersion in a range of about 0.08 to about 0.34 percent solids by weight. The components are impregnated in a fiber substrate and subsequently cured to provide an article having improved hydrophobic properties over known antiwetting compositions.
A curable antiwetting composition, comprising a dispersion of a polymeric fluoroaliphatic ester and a silicone resin prepolymer in a water-based carrier suitable for providing hydrophobicity to fibrous substrates when applied thereto, and heat-cured thereafter.
A curable antiwetting composition, comprising a dispersion of a polymeric fluoroaliphatic ester at about 0.12 to about 0.5 percent solids by weight, and a polysiloxane, having silanol terminal groups, at about 0.08 to about 0.34 percent solids by weight, in a water-based carrier suitable for providing hydrophobicity to fibrous substrates when applied thereto, and heat-cured thereafter.
A method for forming an antiwetting fibrous substrate, comprising heating a fibrous substrate impregnated with a curable, water-based composition including a polymeric fluoroaliphatic ester and a silicone resin prepolymer to cure the composition and thereby form a hydrophobic fibrous substrate.
A method for forming an antiwetting fibrous substrate, comprising:
An antiwetting article comprising:
Dependencies are inferred from the claim text.