COATING MATERIAL COMPOSITIONS AND COATINGS PRODUCED THEREFROM WITH HIGH SCRATCH RESISTANCE AND GOOD POLISHABILITY AND GOOD OPTICAL PROPERTIES, AND USE THEREOF

• Main Authors: HUEBNER KATHARINA, HANNING SILKE, FRANK ANDREA, AUSTRUP BERTHOLD, MUELLER JOERG, GROENEWOLT MATTHIJS
• Format: Patent
• Language: English; Korean
• Published: 12.08.2015
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

The present invention provides nonaqueous coating material compositions, multistage coating processes and also the use of the coating material compositions, comprising (A) at least one polyhydroxyl-group-containing compound, (B1) at least one polyisocyanate-group-containing compound (B1) having free or blocked isocyanate groups and having a cycloaliphatic polyisocyanate parent structure, and/or a polyisocyanate derived therefrom, (B2) at least one polyisocyanate-group-containing compound (B2) having free or blocked isocyanate groups and having an acyclic, aliphatic polyisocyanate parent structure, and/or a polyisocyanate derived therefrom, (D) at least one catalyst for the crosslinking of silane groups, and (R) at least one rheological assistant (R) based on fumed silica, where component (B1) and/or component (B2) comprise at least one structural unit -NR-(X-SiR″x(OR′)3-x)  (I), and/or at least one structural unit -N(X-SiR″x(OR′)3-x)n(X′-SiR″y(OR′)3-y)m  (II).