Weyerhaeuser Company Limited

Weyerhaeuser Nr Company

Daniel V Hanson

Jack G Winterowd

Jerry D Izan

Charles E Lewis

Michael N Taylor

Naomi C High

Amar N Neogi

Cheng Zhang

Erik M Parker

Roger M Shantz

Tri Tran

Thomas F Schulner

Naomi High

Douglas R Loates

Albert C Phillips

Darrell C Roden

The present invention is an adhesive suitable for use in the production of engineered wood products, said adhesive comprised of an aromatic diisocyanate (99.0-10.0 parts by mass) and an aromatic petroleum distillate (1.0-90.0 parts by mass) with low volatility. The adhesive composition may result in improved coverage or distribution on the outer surface of raw materials, such as strands, particles, flakes, fibers, or veneer.

Adhesive having aromatic diisocyanates and aromatic petroleum distillates with low volatility for use in engineered wood products

Systems for attaching a plurality of wood products are provided. In a first type of system, a first wood product has a first chemical compound applied to a surface of the first wood product. A second wood product has a second chemical compound applied to a surface of the second wood product. An adduct is formed when the first chemical compound contacts the second chemical compound wherein the first wood product becomes adhered to the second wood product. In a second type of system, a pressure sensitive and/or anaerobic adhesive is placed on at least one of the wood products prior to assembly. The compounds/adhesives have an open assembly time greater than or approximately equal to 24 hours.

Systems for attaching wood products

A composition and method for inhibiting stain formation in a floor covering. The composition includes a copper glycine complex in combination with magnesium hydroxide and a carrier. The composition can be advantageously applied to a wood-based substrate upon which a floor covering is overlaid. Flooring assemblies that include the composition are also provided.

Composition and method for inhibiting stain formation in a floor covering

A process for making engineered lignocellulosic-based panels with superior strength and dimensional stability. The process comprising adding to green lignocellulosic particles a low-nitrogen content, high molecular weight, phenol-formaldehyde resin before the green particles are dried. The resin is added in an amount from about 1 to 25 weight percent based on the dry weight of the green lignocellulosic particles. The resin has a nitrogen content of from about 0 to 3%, a viscosity of from about 20 to 2000 cps at 20&#xb0; C., and a molar ratio of formaldehyde/phenol of from about 1.2 to 3.0. The green lignocellulosic particles treated with the resin are dried until the particles have a moisture content of from 1 to 8%. A second resin is added to the dried particles and then the dried particles are consolidated under heat and pressure to form the engineered panel.

Process for making engineered lignocellulosic-based panels

A coating that inhibits stain formation in floor covering. The coating includes a copper amine complex, preferably a copper morpholine complex, and is advantageously applied to an underlayment upon which a floor covering is adhered. Coated panels and floor assemblies that include the coating are also described.

Coating for inhibiting stain formation in floor covering

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Auburn, WA, United States of America

Daniel V Hanson