Hydrophobic and Lyophobic Coating
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Abstract
The invention provides a method for forming a hydrophobic coating on the surface of a solid substrate, the method comprising: a) applying to the surface a composition comprising hydrophobic nano-sized particles, wherein at least some of the hydrophobic nano-sized particles are particles having at least one fluoro-substituted non-polar group on the surface of the particle; and b) curing the applied composition to form a coating bound to the surface, wherein the nano-sized particles provide the surface of the coating with nano-scale roughness. The method can be used to form a hydrophobic and lyophobic coating on the surface of a textile.
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Citations
48 Claims
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1-18. -18. (canceled)
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19. A method for forming a hydrophobic coating on the surface of a solid substrate, the method comprising:
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a) applying to the surface a composition comprising hydrophobic nano-sized particles, wherein at least some of the hydrophobic nano-sized particles are particles having at least one fluoro-substituted non-polar group on the surface of the particle; and b) curing the applied composition to form a coating bound to the surface, wherein the nano-sized particles provide the surface of the coating with nano-scale roughness. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 45, 46, 47, 48)
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39. A coating composition comprising hydrophobic nano-sized particles and an organic solvent, wherein the hydrophobic nano-sized particles are hydrophobic nano-sized particles formed by the hydrolysis and condensation of one or more compounds of formula (1):
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R2M(OR)3
(1)wherein R2 is a non-polar group that is not fluoro-substituted, M is a metal, and each R is independently selected and is an alkyl group; with one or more compounds of formula (2);
R3M(OR)3
(2)wherein; R3 is a fluoro-substituted non-polar group, M is a metal, and each R is independently selected and is an alkyl group. - View Dependent Claims (40, 41)
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42. A coating composition comprising hydrophobic nano-sized particles and an organic solvent, wherein the hydrophobic nano-sized particles are hydrophobic nano-sized particles formed by the hydrolysis and condensation of one or more compounds of the formula (1):
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R2M(OR)3
(1)wherein R2 is a non-polar group that is not fluoro-substituted, M is a metal, and each R is independently selected and is an alkyl group; with one or more compounds of formula (2);
R3M(OR)3
(2)wherein; R3 is a fluoro-substituted non-polar group, M is a metal, and each R is independently selected and is an alkyl group, together with one or more additional compounds selected from the group consisting of compounds of formula (B) and compounds of formula (C);
M(OR)n
(B)wherein; M is a metal, each R is independently selected and is an alkyl group, and n is 3 or 4;
R1M(OR)m
(C)wherein; R1 is a non-polar group, M is a metal, each R is independently selected and is an alkyl group, and m is 1 or 2. - View Dependent Claims (43, 44)
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Specification