Fibrous mat especially suitable for roofing products and a metho

Details Fibrous mat especially suitable for roofing products and a metho Fibrous mat especially suitable for roofing products and a metho

1976-08-09

1978-12-12

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

523093, 162149, 428291, 428297, 428303, 428440, 428489, B04D 100

Patent

active

041296745

ABSTRACT:
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.

REFERENCES:
patent: 2477555 (1949-07-01), Roberts et al.
patent: 2859109 (1958-11-01), Hawley et al.
patent: 3684645 (1972-08-01), Temple et al.
patent: 3853683 (1974-12-01), Stapleford et al.

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