Inorganic monolithic mouldings coated with organic polymers
AssigneeMerck Patent GmbH
InventorsZöfre Bayram-Hahn, Klaus Unger, Robertus Hendriks, Dieter Lubda
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Abstract
The present invention relates to inorganic monolithic mouldings whose surface is coated with physi- or chemisorbed organic polymers, and to processes for the production of materials of this type. The materials according to the invention are highly suitable as sorbents for chromatography, in particular for high pressure liquid chromatography of biological materials.
Claims23
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.
Dependencies are inferred from the claim text.