Patent ID: 7455106

Claim:
An apparatus comprising: (a) a polymeric substrate formed into an oilfield element; and (b) a polymeric coating adhered to at least a portion of the polymeric substrate, wherein the polymeric coating comprises a polymer having the formula —[R(R 1 x )(R 2 y )] n —, wherein R is C—C, aryl, or —C(R 3 p )-aryl-C(R 5 r )(R 6 s ), and n is an integer ranging from 10 to 10,000, if R is C—C, then R 1 and R 2 are the same or different halogen atoms, x and y are integers ranging from 0 to 4, and x+y=4, if R is aryl, R 1 and R 2 are the same or different and are any organic or inorganic group that can be substituted on aromatic nuclei, and x and y are integers ranging from 0 to m, and x+y≦m, wherein m is the maximum number of substitution positions on the aryl, if R is —C(R 3 p )(R 4 q )-aryl-C(R 5 r )(R 6 s )—, x and y are integers ranging from 0 to m, and x+y≦m, wherein m is the maximum number of substitution positions on the aryl, R 1 and R 2 are attached to the aryl group and are independently selected from any organic or inorganic group that can be substituted on aromatic nuclei, R 3 , R 4 , R 5 , are independently selected from halogen atoms and hydrogen atoms, p, g, r, and s may be 0, 1, or 2, with p+q=2 and r+s=2.