Fibrous mat especially suitable for roofing products and a method of making the mat

An economical and uniform fibrous glass mat displaying improved tear strength and a wet forming process of making such a mat is disclosed herein. The mat, which is especially suitable as a carrier material in the manufacture of asphalt shingles or other such roofing products, includes a web of base...

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Bibliographische Detailangaben
Hauptverfasser:	HANNES, GEORGE J, ROHWEDER, THEODORE R, SHEPHERD, PHILIP B, DREIKORN, HANS W
Format:	Patent
Sprache:	eng
Schlagworte:	BUILDING FIXED CONSTRUCTIONS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GUTTERS IMPREGNATING OR COATING OF PAPER INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS LAUNDERING PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PERFORMING OPERATIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS ROOF COVERINGS ROOF-WORKING TOOLS SKY-LIGHTS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TEXTILES TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TREATMENT OF TEXTILES OR THE LIKE WALL, FLOOR OR LIKE COVERING MATERIALS, e.g. LINOLEUM,OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF AFIBROUS WEB COATED WITH A LAYER OF MACROMOLECULARMATERIAL WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An economical and uniform fibrous glass mat displaying improved tear strength and a wet forming process of making such a mat is disclosed herein. The mat, which is especially suitable as a carrier material in the manufacture of asphalt shingles or other such roofing products, includes a web of base fibers comprising individual monofilament glass fibers and reinforcement fibers in the form of glass fiber bundles interspersed throughout the web in a randomly oriented pattern. The mat also includes a binder substance to assist in holding the base fibers and reinforcement fiber bundles together.