申请人:NIPPON PAINT CO., LTD.
公开号:EP0570992A1
公开(公告)日:1993-11-24
The invention concerns powder coatings comprising a mother powder coating having an average particle diameter of 30 to 50 microns and comprising a thermoplastic or thermosetting binder, resin, said particle carrying, at least on the surface thereof, microparticles of a crosslinked or uncrosslinked resin and having an average diameter of 0.001 to 10µm, a glass transition temperature of 50 to 150°C and an SP value of 9 to 15, and containing a functional material which is UV absorber, antioxidant or hardening catalyst, the weight ratio of the microparticles to the total weight of the powder coatings being from 0.05 to 30% by weight.
本发明涉及粉末涂料,包括平均颗粒直径为 30 至 50 微米的母粉末涂料,其中包含热塑性或热固性粘结剂、树脂,所述颗粒至少在其表面携带交联或未交联树脂的微颗粒,其平均直径为 0.001至10µm,玻璃化温度为50至150°C,SP值为9至15,并含有紫外线吸收剂、抗氧化剂或硬化催化剂等功能材料,微粒子与粉末涂料总重量的重量比为0.05至30%(重量比)。