VERLAUFMITTELHALTIGE POLYURETHAN-HIGH-SOLID-REAKTIVBESCHICHTUNGSSYSTEME UND IHRE VERWENDUNG ZUR REAKTIVBESCHICHTUNG

• Main Authors: ALBERTS,HEINRICH,DR, THOMA,WILHELM,DR, PISARIC,KARL
• Format: Patent
• Language: German
• Published: 03.05.1984
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR; INKS; LAUNDERING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; 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; PERFORMING OPERATIONS; POLISHES; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; USE OF MATERIALS THEREFOR; WALL, FLOOR OR LIKE COVERING MATERIALS, e.g. LINOLEUM,OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF AFIBROUS WEB COATED WITH A LAYER OF MACROMOLECULARMATERIAL; WOODSTAINS

The present invention is directed to a high-solids polyurethane reactive coating system based on blocked NCO-prepolymers, polyamines and, optionally, solvents, said coating system containing a leveller agent comprising (1) a combination of from about 1 to 10% by weight of (A) vinyl polymers and copolymers based on (meth)acrylic acid esters and, optionally, other comonomers and from about 0.1 to 2% by weight of (B) polysiloxanes and/or polyalkylene oxide/polysiloxane copolymers, (2) from about 0.2 to 2.0% by weight of (C) poly(meth)acrylic acid (hydroxy)alkyl ester graft polymers on silicones, (3) mixtures of (A), (B) and (C) in the amounts specified, (4) mixtures of (A) and (C) in the amounts specified or (5) mixtures of (B) and (C) in the amounts specified. The present invention also relates to textile substrates coated on one or both sides or surface-textured sheet-form materials, particularly velour leather, coated with the above leveller-containing, high-solids polyurethane reactive coating systems.