Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1992-01-17
1994-02-08
Lesmes, George F.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428245, 428246, 428247, 428255, 428256, 428283, 428284, 428285, 428288, 428289, 428298, 428302, 428920, 428921, B27N 900, B32B 516, B32B 700, B32B 506
Patent
active
052847004
ABSTRACT:
Mineral fibers, and products (e.g., building insulation products) formed of mineral fibers are treated, and thus rendered fire-resistant, by placing a phosphate-containing compound onto or in close proximity to the mineral fibers. The phosphate-containing compound is at least one which forms a high-temperature protective coating or layer on the surfaces of the mineral fibers. A preferred product of the invention will include two mineral wool layers with a septum carrying the phosphate-containing compound interposed therebetween. Exemplary phosphate-containing compounds include monoammonium phosphate, diammonium phosphate, dicalcium phosphate, monocalcium phosphate, phosphoric acid, aluminum phosphate, tetrasodium pyrophosphate, tetrapotassium pyrophosphate, sodium hexametaphosphate, potassium tripolyphosphate, sodium tripolyphosphate, ammonium polyphosphate, monosodium dihydrogen phosphate, and mixtures thereof.
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Brandenburg Kathryn L.
Crothers Steven D.
Godfrey Richard D.
Goudy Beverly A.
Shafer Roy E.
Davidson Bryan H.
Gillespie Ted C.
Lesmes George F.
Owens-Corning Fiberglas Corporation
Pacella Patrick P.
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