Abrasion-resistant and alkali-resistant coatings or moulded bodies having a low-energy surface
AssigneeLeibniz-Institut fuer Neue Materialien gemeinnuetzige GmbH
InventorsErtugrul Arpac, Helmut Schmidt, Murat Akarsu
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Abstract
The invention relates to a composition for producing abrasion-resistant and alkali-resistant layers or molded bodies having a low-energy surface, said composition comprising a) a hardenable binder system containing at least one organic polymer or oligomer comprising at least one functional group, or a precursor thereof, b) at least one fluorine-containing polymer or oligomer containing at least one functional group that can react with a functional group of the binder system, and c) inorganic particles, and to the products thus obtained. The coatings and molded bodies obtained are especially suitable for surfaces to be kept clean.
Claims36
A composition for the production of an abrasion-resistant and alkali-resistant coating or shaped body, wherein the composition comprises
- (a) a curable binder system comprising at least one organic polymer or oligomer with one or more functional groups, or a precursor thereof, and further comprising a crosslinking agent and/or hardener, which crosslinking agent and/or hardener comprises one or more of a di- or tetracarboxylic acid, an anhydride thereof or another derivative thereof as a carboxylic acid component, and at least one of a diamine and a tetramine as an amine component, at least one of the carboxylic acid component and the amine component comprising an aromatic radical,
- (b) at least one fluorinated polymer or oligomer having at least one functional group which is capable of undergoing a chemical reaction with a functional group of the binder system, and
- (c) one or more types of inorganic particles having a mean particle diameter of from 1 μm to 100 μm and comprising at least one abrasive material selected from diamond, granite, pumice, tripel, silicon carbide, emery, alumina, silica, gypsum, boron carbide.
A composition for the production of an abrasion-resistant and alkali-resistant coating or shaped body, wherein the composition comprises
- (a) a curable binder system comprising one or more of an epoxy resin, a polyol, a polyisocyanate, a polyester, a polyacrylate, a polyamine, a polyamide, a polyimide, a polybenzimidazole and precursors thereof, and further comprising a crosslinking agent and/or hardener, which crosslinking agent and/or hardener comprises one or more of a di- or tetracarboxylic acid, an anhydride thereof or another derivative thereof as a carboxylic acid component, and at least one of a diamine and a tetramine as an amine component, at least one of the carboxylic acid component and the amine component comprising an aromatic radical,
- (b) at least one fluorinated polymer or oligomer having at least one functional group which is capable of undergoing a chemical reaction with a functional group of the binder system and comprises one or more of a —SO3H group, a —PO3H group, an amino group, a carboxyl group and a hydroxyl group, and
- (c) one or more types of inorganic particles having a mean particle diameter of from 1 μm to 50 μm and comprising at least one abrasive material selected from diamond, granite, pumice, tripel, silicon carbide, emery, alumina, silica, gypsum, boron carbide.
Dependencies are inferred from the claim text.