The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 1999
Filed:
Oct. 09, 1997
Jack G Winterowd, Puyallup, WA (US);
Dan V Hanson, Puyallup, WA (US);
Jerry D Izan, Federal Way, WA (US);
Charles E Lewis, Federal Way, WA (US);
Stephen L Siebert, Lee's Summit, MO (US);
Kerry P Murphy, Rosscommon, MI (US);
David R Pflum, Rosscommon, MI (US);
Barbara A Wade, Grayling, MI (US);
Weyerhaeuser Company, Tacoma, WA (US);
Abstract
Wood-based products, to which an overlay material is attached, are pretreated with an aqueous suspension of alkaline, inorganic, multivalent compound such as magnesium hydroxide and a binding agent and then allowed to dry fixing the antistaining compound on the surface of the wood member. Selected additives can be added to the aqueous suspension to enhance application and surface properties. Thereafter the treated members are installed, a typical application being as wood-based underlayment or structural subflooring in flooring construction. When a vinyl floor covering material is attached to the pretreated panel, the treatment functions as a stain blocker preventing unsightly staining of the vinyl floor covering over time.