Coating processes – Direct application of electrical – magnetic – wave – or... – Polymerization of coating utilizing direct application of...
Reexamination Certificate
2006-11-28
2006-11-28
Cameron, Erma (Department: 1762)
Coating processes
Direct application of electrical, magnetic, wave, or...
Polymerization of coating utilizing direct application of...
C427S493000, C427S379000, C427S385500, C427S386000
Reexamination Certificate
active
07141276
ABSTRACT:
The invention is used in the field of chemistry and relates to coatings which can be used, for example, for the production of paint films, and a method for production thereof.The object of the invention is to describe permanent coatings with hydrophobic to ultrahydrophobic properties.The object is attained by hydrophobic permanent coatings of a crosslinked layer of a hardener component (A) and resin component (B), whereby (A) and/or (B) comprise chemically coupled lateral and/or terminal perfluoroalkyl groups with at least one trifluoromethyl end group, with a coupling between the layer and the surface region of the substrate.The object is further attained with a method in which the coating agent containing perfluoroalkyl groups is applied to a surface in the form of a melt, powder, dispersion or solution, with input of energy a film formation is carried out in one or more stages with or without a partial cross-linking and at least one partial coupling and subsequently again with input of energy a complete cross-linking of the layer is carried out.
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Appelhans Dietmar
Gedan-Smolka Michaela
Lehmann Dieter
Cameron Erma
Greenblum & Bernstein P.L.C.
Leibniz-Institut Fuer Polymerforschung Dresden E.V.
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