Patent ID: 7811373
Filing Date: 2010-10-12
Classification: C08L,C10C

Abstract:
1. A process for incorporating recycled tire rubber in an asphalt mastic, said process comprising: (a) forming a mixture consisting of (i) carbonaceous waste solids in the form of particles whose longest dimension is a maximum of about 1 mm, (ii) recycled tire rubber in the form of particles whose longest dimension is a maximum of about 1 mm, (iii) optionally an oil selected from the group consisting of crude oil, a liquid petroleum fraction, motor oil, tall oil, agriculturally-derived oil, and (iv) clarified slurry oil; (b) subjecting said mixture to a heat treatment by maintaining said mixture at a temperature of from about 100° C. to about 260° C. for a duration of from about 30 minutes to about 24 hours to release moisture and volatile organics from said recycled tire rubber and thereby cause a reduction in weight of said mixture of at least about 10% prior to combining said mixture with asphalt; and (c) combining said mixture following said heat treatment with a liquid asphalt composition to form said asphalt mastic.