E - Fixed Constructions – 04 – D
Patent
E - Fixed Constructions
04
D
92/10, 20/38.1
E04D 5/10 (2006.01) B32B 5/02 (2006.01) B32B 17/02 (2006.01) C04B 26/12 (2006.01) D06N 5/00 (2006.01) D21F 11/00 (2006.01) D21H 13/40 (2006.01) E04D 5/02 (2006.01) E04D 11/02 (2006.01)
Patent
CA 1137731
Abstract of the Disclosure The invention relates to a glass fiber mat having a novel struc- ture and high-strength properties which is particularly useful for roofing products, build up roofing membranes and systems, and a method of making these products. The glass mat of the invention is comprised of two fibrous components, namely, individual filament glass fibers and extended glass fiber elements, which are formed in situ in a wet-laid process from original bundles of glass fibers. The individual filaments appear by conventional filamenta- tion of the bundles. The extended fiber elements, however, are formed by longitudinal extension of a given bundle whose fibers are connected longi- tudinally. Thereby the effective length of a fiber element is very much greater than the length of the fibers therein. The fiber elements are further characterized by a non-uniform diameter, as contrasted to the fibers them- selves, being thicker in the mid-section of the element where connection of fibers is maximized, and tapered towards its ends, where fiber connection is at a minimum.
350763
Bondoc Alfredo A.
Canfield V. Robert
Ziegler B. Randall
G. A. F. Corporation
Smart & Biggar
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