Patent ID: 8088841
Filing Date: 2012-01-03
Classification: C08L

Abstract:
1. A pigmentable asphalt binder composition comprising: a mixture of light-coloured aggregates; and a pigmentable asphalt binder, wherein said pigmentable binder comprises: petroleum asphalt cement (CAP); deasphaltation residue or vacuum residue, modified by polymers; diluents derived from shale oil, wherein the diluents contain 35% to 50% aromatic carbons, have a viscosity in a range of 2 to 100 P at 60° C., and do not contain asphaltene; inorganic pigments; and optionally, containing fillers, wherein the pigmentable asphalt binder has an asphaltene content of 2 to 4%, wherein the composition contains 30 to 50 wt % of an asphalt cement or deasphaltation residue or vacuum residue containing no more than 7 wt % of asphaltenes, wherein the composition contains 5 to 15 wt % polymers, wherein the composition contains 5 to 30 wt % diluents derived from shale oil, wherein the composition contains 2 to 20 wt % inorganic pigments, wherein the composition contains up to 15 wt % fillers.