The present invention provides a recyclable cold curing aqueous coating composition, comprising (a) an oxidative-polymerizable, modified epoxy resin with an acid value of 25 to 60, comprising 20 to 70 percents by weight of an epoxy resin based on the total weight of said modified epoxy resin, of which a particle size is not more than 200 nm in an aqueous medium, (b) an anticorrosive pigment and/or an ampholytic metal oxide and (c) a drier. The recyclable cold curing aqueous coating composition of the present invention can provide a coating film having improved water resistance and corrosion resistance, and repeatedly reuse by recycling and readjusting.
The present invention also provides a method for recycling the cold curing aqueous coating composition.
本发明提供了一种可回收的冷固化
水性涂料组合物,包括:(a) 可氧化聚合的改性环氧
树脂,其酸值为 25 至 60,其中环氧
树脂的重量占所述改性环氧
树脂总重量的 20 至 70%,其在
水性介质中的粒径不超过 200 纳米;(b) 防腐
颜料和/或两性金属氧化物;(c) 干燥剂。本发明的可回收冷固化
水性涂料组合物可以提供具有改进的耐
水性和耐腐蚀性的涂膜,并可通过回收和重新调整重复使用。
本发明还提供了一种回收冷固化
水性涂料组合物的方法。