Patent ID: 6316085
Filing Date: 2001-11-13
Classification: D06N,D21H,E04D,Y10T

Abstract:
A roofing product which comprises:a) a structural mat matrix which comprises:i) a substrate which consists essentially of from 80% to 99% by weight fiberglass fibers and from 20% to 1% by weight wood pulp; andii) a binder which consists essentially of from 80% to 95% by weight urea formaldehyde resin and from 20% to 5% by weight acrylic copolymer;wherein said binder bonds the substrate fiberglass fibers and wood pulp together and wherein said binder comprises from 5% to 15% by weight of said matrix; andb) a filled asphalt which impregnates and/or coats the mat matrix.