Protective coating for articles

Abstract

A protective coating for articles, and particularly titanium, is disclosed. The coating material comprises a combination of a metal halide and a fluorohydrocarbon amine. The surface of the article is preferably preliminarily cleaned by physical and/or chemical techniques, and is treated with a chemical conversion coating agent to provide an inert, microporous surface. The treated surface is then impregnated with the coating material to provide a low friction, protective surface.

What is claimed is: 
     
       1. A composition comprising the wax-like reaction product having a decomposition temperature of at least 575° F of: a polychloro-substituted aliphatic compound containing 1-8 carbon atoms; .Iadd.and having a boiling point above 100° C; .Iaddend.   a metal halide selected from a fluoride, chloride, bromide or iodide of aluminum, titanium or boron; and   a fluoroalkyl aryl compound of the formula: ##STR2## where n is an integer from 1 to 4, m is an integer from 0 to 2, and R is selected from hydrogen, lower alkyl, lower alkanol, aryl or aralkyl.   
     
     
       2. A composition according to claim 1 in which the metal is boron. 
     
     
       3. A composition according to claim 2 in which the boron halide is a fluoride. 
     
     
       4. A composition according to claim 3 in which the fluoroalkyl aryl compound is a fluoroalkyl aryl amine. 
     
     
       5. A composition according to claim 1 in which the polychloro-compound is a terminally chlorinated alkene containing .[.1.]. .Iadd.2 .Iaddend.to 8 .Iadd.carbon .Iaddend.atoms. 
     
     
       6. A composition according to claim 5 in which the alkene is tetrachloroethylene. 
     
     
       7. A composition according to claim 3 in which the metal halide is boron tri-fluoride etherate. 
     
     
       8. A composition according to claim 4 in which the fluoroalkyl-aryl amine is α,α,α-trifluoro-m-toluidine. 
     
     
       9. A composition according to claim 1 including 1 to 50 parts by volume of each of said metal halide and fluoroalkylaryl compound.