Institut F&uuml;r Neue Materialien Gem. Gmbh

Leibniz-institut Fuer Neue Materialien Gemeinnuetzige Gmbh

Institut Fuer Neue Materialien Gemeinnuetzige Gmbh

Ursapharm Arzneimittel Gmbh & Co. Kg

Hermann Schirra

Helmut Schmidt

Thomas Schiestel

Gerhard Jonschker

Ertugrul Arpac

Christoph Lesniak

Detmar Buxmann

Stefan Brueck

Thomas Mueller

A microbicidally coated article, especially a container, having on at least part of it a coating comprising an organically modified inorganic matrix comprising silver colloids which is obtainable by application of a coating composition comprising a) a hydrolysate or condensate based on at least one hydrolysable silane with at least one non-hydrolysable substituent and b) a silver compound to the surface of the article and treatment with heat and/or radiation to form the silver colloid coating. Articles coated in accordance with the invention are therefore particularly suitable for purposes of disinfection, preservation, cosmetic, pharmaceutical or medical purposes. Articles from the pharmaceutical or medical sector, especially containers for pharmaceuticals or articles or components which come into contact with the human body and are required to be free from germs, are preferred fields of application.

Object having a microbicide coating, method for the production thereof and use of the same

Components are separated from liquid or gaseous media with the aid of a nanocomposite comprising nanoparticles in a matrix, wherein the liquid or gaseous medium is brought into contact with the nanocomposite in such a way that at least part of the components to be separated off is bound to the nanocomposite and the resulting laden nanocomposite is separated from the liquid or gaseous medium.

Method for separating components from liquid and gaseous media with nanocomposites

The invention relates to a method for coating a substrate according to which a self-crosslinking coating composition is produced on the basis of a) at least one hydrolysable silane with at least one nonhydrolysable substituent, said silane having one or more electrophilic groups X on at least one nonhydrolysable substitutent, b) at least one hydrolysable silane with at least one nonhydrolysable substituent, said silane having one or more nucleophilic groups Y on at least one nonhydrolysable substituent, c) at least one hydrolysable silane with at least one nonhydrolysable carbonic group that has an average of 2 to 30 fluorine atoms that are bound to one or more aliphatic carbon atoms that are separated from the silicon atom by at least two atoms. The silanes (a), (b) and/or (c) are optionally precondensed and either the silanes (a) may be completely or partially replaced by organic compounds with at least two groups X or the silanes (b) may be completely or partially replaced by organic compounds with at least two groups Y. The self-crosslinking coating composition is then applied to a substrate and allowed to cure at ambient temperature (below 40&deg; C.) to form a coating.

Self-crosslinking compositions based on fluorine-containing polycondensates

A process for preparing a composition for producing nanostructured mouldings and layers comprises contacting an aqueous and/or alcoholic sol of a compound of an element selected from silicon sand metals of the main groups and transition groups of the Periodic Table with species possessing hydrolysable alkoxy groups and comprising at least one organically modified alkoxysilane or a precondensate derived therefrom, under conditions which lead to (further) hydrolysis of the species, and subsequent removal of the alcohol formed and any alcohol already present originally. The process is characterized in that the alcohol is removed in an amount such that the residual alcohol content of the composition is not more than 20% by weight.

Nanostructured forms and layers and method for producing them using stable water-soluble precursors

Growing community of inventors

Saarbruecken, Germany

Hermann Schirra