Louisiana-Pacific. has filed a patent for a method to enhance the antifungal and anti-termite properties of wood panels by applying high levels of zinc borate. The process involves treating the top layer of the wood mat with zinc borate before forming the wood product. GlobalData’s report on Louisiana-Pacific gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Louisiana-Pacific, Structure Building Framework was a key innovation area identified from patents. Louisiana-Pacific's grant share as of January 2024 was 28%. Grant share is based on the ratio of number of grants to total number of patents.

Method for applying high levels of zinc borate to wood

Source: United States Patent and Trademark Office (USPTO). Credit: Louisiana-Pacific Corp

A patent application (Publication Number: US20240001587A1) outlines a method for producing a manufactured wood product with surface protection against fungal and insect attack. The method involves forming bottom, core, and top layers of a manufactured wood mat with lignocellulosic strands treated with zinc borate at specific concentrations. Heat and pressure are then applied to form the final product. Additional steps include blending all strands with a base concentration of zinc borate and adjusting the concentration in specific layers to achieve the desired protection levels.

Furthermore, the method includes incorporating a preservative composition with a concentration of zinc borate of at least 2.0% into the surface layers of a multi-layered composite wood product. This composition helps protect the product against fungal and insect attacks. The composite wood product can be customized with additional features such as resin-impregnated paper overlay, radiant barrier layer, or insulation layer to enhance its properties. Overall, the patent application aims to provide a comprehensive method for producing wood products with enhanced surface protection and customizable features to meet various requirements in construction and other industries.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.