Patent ID: 7648761

Claim:
A coated, clad moulding consisting essentially of a porous inorganic monolithic moulding having one side longer than the other(s) and having a cladding on the long side, wherein a free radical initiator is homogeneously distributed on the surface of said moulding before being coated with a polymer applied from a coating solution by impregnation, comprising at least one organic prepolymer or organic monomer and/or oligomer, which organic prepolymer or organic monomer and/or oligomer is precipitated from the coating solution by lowering the solution temperature and which polymer is physisorbed or chemisorbed on the inorganic moulding and bonded to said moulding via initiation, and wherein the polymer coating is stable against NaOH, and wherein all of the pores of the inorganic moulding have inner surfaces uniformly coated by said polymer such that a pore volume of the inorganic moulding is retained in the coated clad moulding.