Stain-resistant fluorochemical compositions

Abstract

The invention features a coating composition that comprises a non-urethane acrylate or methacrylate compound in combination with a fluorochemical. Typically, the non-urethane (meth)acrylate is an aliphatic or aromatic (meth)acrylate compound and the fluorochemical typically comprises a monofunctional (per)fluoropolyether (meth)acrylate compound. The coating compositions can provide a protective topcoat layer to a variety of substrates, including wood and vinyl.

What is claimed is: 
     
         1 . A method of protecting a substrate surface, the method comprising providing a surface layer on the substrate, wherein the surface layer comprises the reaction product of a composition comprising at least one non-urethane aliphatic (meth)acryl compound and at least one polymerizable fluorochemical. 
     
     
         2 . A method of protecting a substrate surface, the method comprising providing a surface layer on the substrate, wherein the surface layer comprises the reaction product of a composition comprising at least one non-urethane (meth)acryl compound and at least one monoterminated (per)fluoropolyether (meth)acryl compound. 
     
     
         3 . The method of  claim 1 , wherein the at least one non-urethane aliphatic (meth)acryl compound is non-perfluorinated. 
     
     
         4 . The method of  claim 1 , wherein the at least one non-urethane aliphatic (meth)acryl compound is a monomer or oligomer having at least two acryl or methacryl groups. 
     
     
         5 . The method of  claim 1 , wherein the at least one polymerizable fluorochemical comprises a (per)fluoropolyether (meth)acryl compound. 
     
     
         6 . The method of  claim 5 , wherein the (per)fluoropolyether (meth)acryl compound comprises at least two catenated oxygen heteroatoms. 
     
     
         7 . The method of  claim 1 , wherein the substrate comprises vinyl or wood. 
     
     
         8 . The method of  claim 2 , wherein the at least one non-urethane aliphatic (meth)acryl compound is non-perfluorinated. 
     
     
         9 . The method of  claim 2 , wherein the at least one non-urethane aliphatic (meth)acryl compound is a monomer or oligomer having at least two acryl or methacryl groups. 
     
     
         10 . The method of  claim 2 , wherein the perfluoropolyether of the monoterminated (per)fluoropolyether (meth)acryl compound comprises at least two catenated oxygen heteroatoms. 
     
     
         11 . The method of  claim 2 , wherein the non-urethane (meth)acryl compound is selected from the group consisting of aliphatic (meth)acrylates and aromatic (meth)acrylates. 
     
     
         12 . The method of  claim 2 , wherein the substrate comprises vinyl or wood. 
     
     
         13 . An article comprising a substrate and surface layer, wherein the surface layer comprises the reaction product of a composition comprising at least one non-urethane aliphatic (meth)acryl compound and at least one polymerizable fluorochemical. 
     
     
         14 . An article comprising a substrate and surface layer, wherein the surface layer comprises the reaction product of a composition comprising at least one non-urethane (meth)acryl compound and at least one monoterminated (per)fluoropolyether (meth)acryl compound. 
     
     
         15 . The article of  claim 13 , wherein the surface layer is provided by coating the composition onto the substrate. 
     
     
         16 . The article of  claim 14 , wherein the surface layer is provided by coating the composition onto the substrate. 
     
     
         17 . The article of  claim 13 , wherein the substrate comprises vinyl or wood. 
     
     
         18 . The article of  claim 14 , wherein the substrate comprises vinyl or wood. 
     
     
         19 . The article of  claim 13 , wherein the at least one polymerizable fluorochemical is selected from the group consisting of perfluoroether-containing acrylates and methacrylates. 
     
     
         20 . The article of  claim 14 , wherein the at least one non-urethane (meth)acryl compound is selected from the group consisting of aliphatic (meth)acrylates and aromatic (meth)acrylates.