Patent ID: 8993657
Filing Date: 2015-03-31
Classification: C08K,C08L,E01C

Abstract:
1. A method of forming an emulsified asphalt binder material comprising: forming a base asphalt binder by combining an asphalt binder and polyphosphoric acid or superphosphoric acid, mixing an amine compound and a phosphorous-based acid in water to form an emulsifier solution including an amine phosphate, and mixing the base asphalt binder and the emulsifier solution, in high shear dispersion equipment to form asphalt binder sheared into fine particles of 4 to 20 micrometers, to form the emulsified asphalt binder material; or adding an amine compound to an asphalt binder to form an amine-treated asphalt binder, contacting the amine-treated asphalt binder with a mixture of phosphorous-based acid and water required to react with the amine compound in high shear dispersion equipment to form an amine phosphate in situ as the asphalt binder is sheared into fine particles and the amine phosphate and asphalt binder form the emulsified asphalt binder material.