Patent ID: 9090774
Filing Date: 2015-07-28
Classification: C04B,C08L,C09C,Y02P

Abstract:
1. A coloring agent comprising: at least one inorganic pigment selected from the group consisting of iron oxides, iron oxide hydroxides, chromium oxides, titanium dioxides and mixed-phase pigments based on metal oxides; one or more oils; and one or more waxes, wherein: at least 50 wt % of the agent has a particle size of 1 mm or more; the total amount of wax or waxes is greater than 10 to 25 wt %, based on the total amount of the agent; the total amount of oil or oils is from 0.1 to 5.0 based on the total amount of the agent; and the agent has an attrition value of 10 wt % or less.