Masonite Corporation

Thomas M Ruffin

John Peter Walsh

Allen Ray Hill

James P Pfau

Liqun Xu

Thomas A Lehtinen

Tamra Williams

David McMahan

The present invention is directed to a door facing formed from a polymeric composite material. The door facing has a first major surface intended to be interiorly disposed and a second major surface intended to be exteriorly disposed. At least a portion of the first major surface is to be subjected to thermal and mechanical stresses during door assembly. The first major surface has a textured pattern in the portion to be subjected to thermal and mechanical stresses. The textured pattern includes a plurality of spaced grooves extending into the first major surface and minimizing thermal and mechanical stresses. A door formed with the disclosed polymeric door facing and a method of forming a door facing are also disclosed.

Polymeric door facing with textured interior surface, and method of forming same

Disclosed herein is a cellulosic composite article and steam injection press methods of making the same by combining a phenolic resin with cellulosic material to form a mixture and, thereafter, providing a catalyzing agent, such as aluminum chloride, to the mixture. As an alternative, the method may include the steps of combining a catalyzing agent with a cellulosic material to form a mixture and, thereafter, providing a phenolic resin to the mixture. The method further includes the steps of forming a mat from the catalyzing agent-containing mixture and consolidating the catalyzing agent-containing mat in a pressing apparatus under heat, steam, and pressure to form the consolidated cellulosic product.

Composite article and method of making same

A method of forming a consolidated wood product is disclosed wherein zinc borate and resin are mixed with cellulosic material to form treated cellulosic material, followed by applying heat and pressure to form a consolidated cellulosic product. A consolidated product comprises zinc borate, resin, and cellulosic material, wherein the zinc borate is distributed throughout the lignocellulosic material. A steam injection process is also disclosed.

Method of making cellulosic composite articles

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Laurel, MS, United States of America

Thomas M Ruffin