Alkylacrylate ester composition for anchoring materials in or to concrete or masonry

Abstract

This invention provides a composition for anchoring materials in or to concrete or masonry. The composition comprises an alkylacrylate ester monomer, an alkylacrylate ester/methacrylic acid copolymer, a free-radical catalyst and a filler.

What is claimed is:  
     
         1 . A composition for anchoring materials in or to concrete or masonry, which composition comprises: 
 a. Alkylacrylate ester monomer;    b. A copolymer or alkylacrylate ester and methacrylic acid monomers;    c. A filler; and    d. A free-radical catalyst.    
     
     
         2 . The composition of  claim 1  wherein the polymer to monomer ratio is in the range of about 1 to 9 to about 2.5 to 1 by weight.  
     
     
         3 . The composition of  claim 1  wherein the polymer to monomer ratio is in the range of about 1 to 4 to about 1 to 2.5 by weight.  
     
     
         4 . The composition of  claim 1  wherein the combination of monomer and copolymer comprises about 20% to about 90% of the composition.  
     
     
         5 . The composition of  claim 1  wherein the combination of monomer and copolymer comprises about 20% to about 45% of the composition.  
     
     
         6 . The composition of  claim 1  wherein the filler comprises from about 10% to about 90% by weight of the composition.  
     
     
         7 . The composition of  claim 1  wherein the filler comprises from about 40% to about 80% by weight of the composition.  
     
     
         8 . The composition of  claim 1  further comprising a chain transfer agent.  
     
     
         9 . The composition of  claim 1  further comprising a free-radical inhibitor.  
     
     
         10 . The composition of  claim 1  further comprising an activator.  
     
     
         11 . A composition for anchoring materials in or to concrete or masonry that is made by mixing a first composition, which first composition comprises: 
 a. A solution of methacrylate ester monomer and methacrylate ester/methacrylic acid copolymer; and    b. A filler; and    a second composition, which second composition comprises:    a. A free-radical catalyst.    
     
     
         12 . The composition of  claim 11  wherein the polymer to monomer ratio is in the range of about 1 to 9 to about 2.5 to 1 by weight.  
     
     
         13 . The composition of  claim 11  wherein the polymer to monomer ratio is in the range of about 1 to 4 to about 1 to 2.5 by weight.  
     
     
         14 . The composition of  claim 11  wherein the monomer/copolymer solution comprises about 20% to about 90% of the composition.  
     
     
         15 . The composition of  claim 11  wherein the monomer/copolymer solution comprises about 20% to about 45% of the composition.  
     
     
         16 . The composition of  claim 11  wherein the first composition further comprises a chain transfer agent.  
     
     
         17 . The composition of  claim 11  further comprising a free-radical inhibitor.  
     
     
         18 . The composition of  claim 11  further comprising an activator.  
     
     
         19 . The composition of  claim 11  wherein the second composition further comprises a filler.  
     
     
         20 . A method for anchoring a material in or to concrete or masonry comprising the steps of: 
 a. Delivering the composition of  claim 1  to concrete or masonry, the material to be anchored to the concrete or masonry or both;    b. Contacting the material to be anchored, the concrete or masonry and the anchor composition; and    c. Polymerizing the anchor composition.