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US 5,965,638 AGranted
Structural mat matrix
AssigneeElk Corporation of Dallas
InventorDarrell Heine
Life of this patent
Estimating the term…
Abstract
A structural mat matrix comprises (a) a substrate which consists essentially of from 80% to 99% by weight fiberglass fibers and from 20% to 1% by weight wood pulp and (b) a binder which consists essentially of from 80% to 95% by weight urea formaldehyde and from 20% to 5% by weight acrylic copolymer. The binder bonds the substrate fiberglass fibers and wood pulp together and comprises from 5% to 15% by weight of said matrix, preferably 10% by weight of the matrix.
Claims4
A structural mat matrix which comprises:
- a) a substrate which consists essentially of from 80% to 99% by weight fiberglass fibers and from 20% to 1% by weight wood pulp;
- and
- b) 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.
1 more element
Dependencies are inferred from the claim text.