Polymer blend based on polycarbonate polyols

摘要

An aqueous coating material comprises (A) hydroxyl-free polyurethane and/or polyurethane-urea, (B) ionically modified, hydroxyl- and/or amino-containing polyurethane and/or polyurethane-urea, and (C) crosslinker(s). Polyurethane and/or polyurethane-urea components (A) and (B) comprise polycarbonate polyol containing >=25 wt.% 1,4-butanediol as synthesis component. Independent claims are included for: (1) a two-component paint comprising the above coating materials; (2) a coating on the surface of mineral building materials, metallic surfaces, or asphaltic or bituminous coverings, paints and sealants for wood and wood-based materials or plastics surfaces, or high-gloss varnishes, comprising the above coating material; (3) a soft feel paint on plastic substrates or wood substrates, comprising the above coating material; and (4) a multi-coat system comprising a topmost coat (e.g. clearcoat or topcoat film), and a soft feel paint.