Back to results
US 5,034,432 AGranted
Powder coatings
AssigneeNippon Paint Co., Ltd.
InventorsTasaburo Ueno, Akimitsu Uenaka, Yuji Toyoda, Katsuaki Kida, Masayuki Maruta, Koichi Tsutsui
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeNippon Paint Co., Ltd.
InventorsTasaburo Ueno, Akimitsu Uenaka, Yuji Toyoda, Katsuaki Kida, Masayuki Maruta, Koichi Tsutsui
Estimating the term…
The invention concerns powder coatings comprising thermoplastic or thermosetting type resin powder particles, each particle carrying at least on the surface thereof, a number of microparticles having an average diameter of 0.001 to 10.mu. of such resin as having a glass transition temperature of 50.degree. to 150.degree. C. and a SP value of 9 to 15, said microparticle optionally containing UV absorber or antioxidant or hardening catalyst, the weight ratio of said microparticles to the total weight of the powder coatings being 0.05 to 30% by weight. The present powder coatings are excellent in blocking resistance and capable of forming a coating with excellent stain resistance, coating appearance and other desired properties.
Powder coatings comprising thermoplastic or thermosetting resin powder particles, each particle carrying, at least on the surface thereof, a number of microparticles having an average diameter of 0.001 to 10.mu. of such resin as having a glass transition temperature of 50 to 150.degree. C. and a SP value of 9 to 15, the weight ratio of said microparticles to the total weight of the powder coatings being 0.05 to 30% by weight.
Dependencies are inferred from the claim text.