Patent ID: 6706110
Filing Date: 2004-03-16
Classification: C01P,C09B,C09C

Abstract:
A process to manufacture a pigment granulate suitable for the coloring of a homopolar media selected from the group consisting of asphalt, bitumen, bituminous materials and tar, said granulate comprising a mixture containing one or more pigments, one or more waxes having a melting point in the range of 50Â° C. to 200Â° C., and a dispersant for polar systems, said method comprising (a) mixing one or more pigments as a powder mixture or as a suspension in a solvent with one or more waxes having a melting point in the range of 50Â° C. to 200Â° C., a dispersant for polar systems and water; and (b) subjecting said mixture from step (a) to a granulating step, whereby said granulate suitable for the coloring of said homopolar media is obtained.