Hydrophobic coating compositions and articles coated with said compositions

Abstract

Hydrophobic coating compositions are provided as are processes to coat articles with the compositions. Extremely hydrophobic coatings are provided by the compositions. Durable, weatherable and scratch-resistant coatings are provided by compositions comprising a trifluoromethyl-containing component and a hardenable material. Weatherable coatings are also provided by compositions comprising a mobile non-volatile fluorinated component and a hardenable material. Processes are also provided for forming hydrophobic coatings on articles.

1 . A composition of matter comprising the reaction product of a first monomer and a second monomer and formed by a first reaction mechanism, said composition comprising at least 15 percent by weight said first monomer, and from about 1 to about 10 percent by weight said second monomer, said first monomer comprising a trifluormethyl-containing monomer, said second monomer differing from the first monomer and including a functional group that is capable of being activated by a second reaction mechanism, wherein said second reaction mechanism differs from the first reaction mechanism and comprises a radiation induced linkage.  
     
     
         2 . A composition as in  claim 1 , wherein the second reaction mechanism comprises activation by visible light.  
     
     
         3 . A composition as in  claim 1 , wherein the second reaction mechanism comprises activation by ultraviolet light.  
     
     
         4 . A composition as in  claim 1 , wherein said functional group is at least one of an epoxy group, a vinyl group, an acrylate group, or a methacrylate group.  
     
     
         5 . A composition as in  claim 1 , further comprising a catalyst for said second reaction mechanism.  
     
     
         6 . A composition as in  claim 1 , further comprising a solvent.  
     
     
         7 . A composition as in  claim 6 , wherein said solvent comprises a fluorinated solvent.  
     
     
         8 . A composition as in  claim 1 , wherein the first monomer comprises at least one of a peroxide catalyzed linkage, an azo catalyzed linkage, a free radical induced linkage, a cationically induced linkage, a radiation induced linkage, a vinyl linkage, a methacrylate linkage, a urethane linkage, an epoxy linkage, a condensation linkage, a silane linkage, and a siloxane linkage.  
     
     
         9 . A composition as in  claim 1 , further comprising a non-perfluorinated functional monomer present in an amount of from about 15 to about 95 percent by weight.  
     
     
         10 . A composition as in  claim 7 , wherein said additive comprises an epoxy.  
     
     
         11 . The composition of  claim 1 , further comprising hydrophobic particles having an average particle size diameter of less than about 100 microns.  
     
     
         12 . An article coated with the composition of matter of  claim 1 .  
     
     
         13 . An article coated with the composition of matter of  claim 2 .  
     
     
         14 . An article coated with the composition of matter of  claim 3 .  
     
     
         15 . An article coated with the composition of matter of  claim 4 .  
     
     
         16 . An article coated with the composition of matter of  claim 5 .  
     
     
         17 . An article coated with the composition of matter of  claim 8 .  
     
     
         18 . An article coated with the composition of matter of  claim 9 .  
     
     
         19 . An article coated with the composition of matter of  claim 10 .  
     
     
         20 . An article coated with the composition of matter of  claim 11.