Importance

Loading Importance Indicators...

Abstract

There is provided a process for preparing a low- or non-dusting substantially non-volatile (preferably highly light reflective) metal flake pigment composition, which comprises ball milling atomized metal powder in a milling fluid substantially comprised of water, in the presence of one or more corrosion inhibitors and a substance which acts as a lubricant for the milling process. Optionally, the paste may be formed into granules for easy storage. Preferred metal pigments are aluminum or gold bronze and in one embodiment the metal pigment is aluminum, the lubricant is oleic acid and the corrosion inhibitor is a phosphate ester having a polyethylene oxide side chain. Agent(s) having both lubricating and corrosion inhibiting properties are preferred as additives.

Loading the Abstract Image...

First Claim