Coating processes – Solid particles or fibers applied – Roofing produced
Reexamination Certificate
2011-05-31
2011-05-31
Parker, Frederick J (Department: 1715)
Coating processes
Solid particles or fibers applied
Roofing produced
C427S188000
Reexamination Certificate
active
07951417
ABSTRACT:
An adhesive product and method of making the product replaces asphalt in the manufacture of roofing shingles. The method comprises steps of forming a mixture of oil comprising fatty acids and a powdered catalyst operable to catalyze the polymerization of the oil; maintaining the oil to powdered catalyst weight ratio in the mixture between 1 to 0.01 and 1 to 4.9; heating the mixture to a reaction temperature greater than 100 degrees Centigrade; maintaining the reaction temperature for at least five minutes; and, injecting air into the mixture while maintaining the reaction temperature. In making a roofing shingle, the method includes additional steps of: applying the heated mixture to a fiberglass mat sheet from an upstream roll to form a tacky coated strip; and, adding a layer of granules to the tacky coated strip. The adhesive material of this method comprises polymerized oil and the powdered catalyst.
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patent: 2007/0087166 (2007-04-01), Lee et al.
patent: 2008/0245269 (2008-10-01), Forth et al.
Wen Ben
Zhang Jessica P.
Parker Frederick J
United Environment & Energy LLC
Ventre, Jr. Louis
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