Process for the preparation of a phosphoric-acid-containing asph

Details Process for the preparation of a phosphoric-acid-containing asph Process for the preparation of a phosphoric-acid-containing asph

1995-06-21

1996-05-21

Szekely, Peter A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 59, 525 545, C08L 9500, C08L 6300

Patent

active

055190731

ABSTRACT:
A method of making an asphalt composition by mixing phosphoric acid with an asphalt base, resulting in an acid-asphalt mixture; blowing air through the acid-asphalt mixture, resulting in an acid-blown asphalt composition; mixing a terpolymer made from the concurrent reaction of ethylene, normal butyl acrylate, and glycidyl ester selected from glycidyl acrylate and glycidyl methacrylate according to U.S. Pat. No. 5,306,750, with the acid-blown asphalt composition, resulting in an glycidyl-functionalized polymer-containing acid-asphalt composition; and mixing an amine anti-strip additive with the glycidyl-functionalized polymer-containing acid-blown asphalt composition, resulting in a final asphalt composition; and recovering the final asphalt composition.

REFERENCES:
patent: 5037474 (1991-08-01), Mesch et al.
patent: 5306343 (1994-04-01), Richardson, III et al.
patent: 5306750 (1994-04-01), Goodrich et al.

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