Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1974-02-11
1976-01-06
Lusignan, Michael R.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
106282, 428285, 428443, D04H 108, B32B 1904
Patent
active
039314405
ABSTRACT:
A method of making a roofing shingle and an asphalt-saturated base sheet generally, utilizing a particular asphalt composition, are disclosed herein. The composition includes asphalt, which at least initially is in a molten state, and a filler material, preferably limestone or other similar mineral filler, dispersed throughout the molten asphalt. In addition, the composition includes a small amount of glass in the form of glass fiber bundles dispersed throughout the asphalt. The glass fiber bundles are made of monofilaments bonded together and are preselected to affect the viscosity of the molten asphalt in a predetermined way depending upon the temperature of the asphalt.
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Croop Robert William
Shepherd Philip Bickford
Johns-Manville Corporation
Krone Robert M.
Lusignan Michael R.
Shear Stephen C.
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