Additive powders for coating materials or plastics

Abstract From the Canadian patent

The present invention provides an additive powder for coating materials or plastics, comprising a particle of a metal or glass, comprised of a particle having a thickness of 0.5 to 5 µm, a minor axis/major axis of from 5 to 500 µm, an aspect ratio (ratio of the major axis to the thickness) of not less than 5, and a ratio of the minor axis to the major axis, of from 1 to 10 and having, the shape of a leaf as a whole. This powder can be prepared by melting a metal or glass, bringing the resulting melt to flow out from a nozzle and jetting a gas to the melt to form droplets of the melt and bringing, said droplets, before they solidify to collide against, the surface of a rotating cooling …