Fibrous mat especially suitable for roofing products

Details Fibrous mat especially suitable for roofing products Fibrous mat especially suitable for roofing products

1976-07-21

1978-09-05

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

162149, 428280, 428288, 428297, 428303, 428426, 428440, D06N 500

Patent

active

041121740

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.

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