20120184650 | EMULSION OF A POLYMER MODIFIED ASPHALT - A method for formulating an emulsified polymer modified asphalt, and the emulsion thus created. The method includes mixing at least one polymer and a first binder in a high shear device to produce a polymer-binder composite, where the polymer is at least 70% butadiene; mixing the polymer-binder composite with a second binder to form a polymer modified asphalt; and emulsifying the polymer modified asphalt by combining effective amounts of an emulsifying agent and of water with the polymer modified asphalt. The polymer-binder composite may be produced at lower than room temperature or may include metal fatty acids, such that the resultant polymer-binder composite may be stored and transported at room temperature. | 07-19-2012 |