Coating processes – Solid particles or fibers applied – Roofing produced
Patent
1992-08-24
1995-01-10
Owens, Terry J.
Coating processes
Solid particles or fibers applied
Roofing produced
427204, 428150, B05D 112
Patent
active
053805526
ABSTRACT:
A process for improving the adhesion of roofing granules to a hot asphalt surface in the manufacture of a roofing product. Onto an asphalt-based substrate having a hot asphalt surface, an amount of a non-asphalt adhesive effective for improving adhesion of roofing granules to the hot asphalt surface is applied and then roofing granules are embedded on the hot asphalt surface. The non-asphalt adhesive can be composed of or include as a component one or more of polyolefins, ethylene-vinyl acetate copolymers, ethylene-ethyl acetate copolymers, ethylene-n-butylacrylate polymers, ethylene-methylacrylate polymers, styrene-containing block or graft copolymers, polyamide terpolymers, hydrocarbon rubbers, polyesters, polyurethanes, and siloxanes. The resulting roofing product includes an asphalt-based substrate with an asphalt surface having roofing granules imbedded thereon with a non-asphalt adhesive at the interface between the asphalt and roofing granules.
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Asphalt Shingles and Roll Roofing, Chapter 2, pp. 2-9 (undated).
Babirad Stefan A.
Bigham Wilson S.
George Billy L.
Laraia, Jr. Vincent J.
Binder Mark W.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Owens Terry J.
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