Chemical method and composition for promoting adhesion and preventing road cracking

Abstract

A method for increased adhesion and prevention of pavement cracking by subsurface application of a composition comprising a synthetic fluid or base oil, a pour point depressant, a binder, and various combinations thereof.

Having thus described the invention, it is now claimed: 
     
         1 . A method for increased adhesion and prevention of pavement cracking by subsurface application of a composition, the method comprising the steps of:
 applying the composition as a road pavement base, the composition comprising:   a synthetic fluid; and,   a binder, wherein after curing, the portion of the pavement in contact with the composition maintains flexibility.   
     
     
         2 . The method of  claim 1 , wherein the synthetic fluid is synthetic isoalkane, and the synthetic isoalkane is about 50% to about 99.9% by weight of a mixture of the synthetic isoalkane and the binder. 
     
     
         3 . The method of  claim 2 , wherein the binder is chosen from the group comprising a carboxylic acid, an ester, and a thermoplastic polyolefin. 
     
     
         4 . The method of  claim 1 , wherein the composition further comprises:
 a pour point depressant, wherein the pour point depressant is chosen from the group comprising acrylic, acrylic copolymers, ethylene vinyl acetate copolymers, vinyl acetate olefin copolymers, alkyl esters of styrene-maleic anhydride copolymers, alkyl esters of unsaturated carboxylic acids, polyalkylacrylates, alkyl phenols, alpha olefin copolymers, polymethylacrylate, and polyalkylmethacrylate.   
     
     
         5 . The method of  claim 1 , wherein the synthetic fluid meets EPA standards for offshore drilling. 
     
     
         6 . A method for increased adhesion and prevention of pavement cracking by subsurface application of a composition, the method comprising the steps of:
 applying the composition as a road pavement base, the composition comprising:
 a synthetic fluid; and, 
   a pour point depressant, wherein after curing, the portion of the pavement in contact with the composition maintains flexibility.   
     
     
         7 . The method of  claim 6 , wherein the synthetic fluid is synthetic isoalkane and the synthetic isoalkane is about 80% to about 95% by weight of a mixture of the synthetic isoalkane and pour point depressant. 
     
     
         8 . The method of  claim 6 , wherein the pour point depressant is chosen from the group comprising acrylic, acrylic copolymers, ethylene vinyl acetate copolymers, vinyl acetate olefin copolymers, alkyl esters of styrene-maleic anhydride copolymers, alkyl esters of unsaturated carboxylic acids, polyalkylacrylates, alkyl phenols, alpha olefin copolymers, polymethylacrylate, and polyalkylmethacrylate. 
     
     
         9 . The method of  claim 8 , wherein the composition further comprises:
 a binder, wherein the binder is chosen from the group comprising a carboxylic acid, an ester, and a thermoplastic polyolefin.   
     
     
         10 . The method of  claim 9 , wherein the composition further comprises an emulsifier. 
     
     
         11 . The method of  claim 6 , wherein the synthetic fluid meets EPA standards for offshore drilling. 
     
     
         12 . The method of  claim 9 , wherein the composition further comprises a second binder, wherein the second binder is chosen from the group comprising a carboxylic acid, an ester, and a thermoplastic polyolefin. 
     
     
         13 - 19 . (canceled)