| 摘要 |
An anti-corrosive polyurethane coating composition which has excellent anti-corrosive property, water resistance, adhesive property to metals and impact resistance and can be coated thick in one coating operation, comprising (1) a polyol mixture of castor oil or a polyol derived from castor oil and an amine polyol produced by addition reaction of an alkylene oxide to a nitrogen-containing compound having at least 2 active hydrogen atoms such as ammonia, an aliphatic amine or an aromatic amine, the amine polyol having at least 2 hydroxyl groups and a hydroxyl value of at least 150 mgKOH/g, (2) a polyisocyanate compound, and optionally coal tar, an aromatic hydrocarbon oil or resin, or usual paint additives. |
