The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 2006
Filed:
Apr. 19, 2002
Dieter Lehmann, Coswig, DE;
Dietmar Appelhans, Dresden, DE;
Michaela Gedan-smolka, Ortrand, DE;
Leibniz-Institut Fuer Polymerforschung Dresden E.V., Dresden, DE;
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.