Patent ID: 8993495
Filing Date: 2015-03-31
Classification: C08K,C08L,C10G

Abstract:
1. An asphalt composition, comprising: a mixture of a first heavy oil fraction and a deasphalting residue from solvent deasphalting of a second feedstock fraction, the first heavy oil fraction having a T5 boiling point of at least 350° C., the second feedstock fraction having a T5 boiling point of at least 350° C., wherein a weight ratio in the mixture of the first heavy oil fraction relative to the deasphalting residue is from 30:70 to 70:30, and further comprising up to 10 wt % of an alkyl substituted aromatic sulfonic acid, wherein the mixture of the first heavy oil fraction and the deasphalting residue comprises a dispersion of deasphalting residue in the first heavy oil fraction wherein the size of the dispersed particles is from 1 micron to 500 microns, and wherein the composition has performance grade at low temperature of −10° C. or less and a performance grade at high temperature of at least 64° C.