Patent ID: 6916549

Claim:
A composition of matter made by a process comprising: in the case of gaseous fluoromonomer (a) contacting a porous substrate with a solution comprising an initiator dissolved in a solvent; (b) exposing said substrate and said initiator to gaseous fluoromonomer, under polymerization temperature and pressure conditions, wherein the fluoromonomer polymerizes inside the pores of said substrate; or in the case of liquid fluoromonomer (a) preparing a solution comprising initiator and liquid fluoromonomer; (b) contacting a porous substrate with said solution; and (c) polymerizing the liquid fluoromonomer under polymerization temperature and pressure conditions, wherein the fluoromonomer polymerizes inside the pores of said substrate, optionally in the presence of gaseous fluoromonomer; wherein the substrate is wood or a wood by-product, and the polymerized fluoromonomer in the substrate partially or completely fills the substrate.