Georgia-Pacific has patented gypsum panels with a unique barrier coating method. The panels feature a gypsum core and a polymer binder barrier coating on fiberglass mats, eliminating pin holes. The coating thickness ranges from 1 to 100 microns, enhancing durability and quality. GlobalData’s report on Georgia-Pacific gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Georgia-Pacific, was a key innovation area identified from patents. Georgia-Pacific's grant share as of February 2024 was 61%. Grant share is based on the ratio of number of grants to total number of patents.

Gypsum panels with polymer barrier coating to eliminate pin holes

Source: United States Patent and Trademark Office (USPTO). Credit: Georgia-Pacific LLC

A recently granted patent (Publication Number: US11873261B2) discloses a gypsum panel with a unique construction. The panel includes a gypsum core associated with a fiberglass mat, with a barrier coating made of a polymer binder applied to the second surface of the mat. This barrier coating, ranging from 1 to 40 lb/MSF in amount and 1 to 100 microns in thickness, effectively eliminates pinholes present in the fiberglass mat's surface. The polymer binder used in the coating can be selected from a variety of materials such as acrylics, silicone, polyurethane, and others, providing specific properties to the panel.

Furthermore, the patented gypsum panel demonstrates exceptional performance characteristics, including a high HET passing rate of at least 90 percent, a column water loss of less than 0.25 inch, and a water gain of less than 5 percent. The barrier coating, when applied in the specified amounts and thickness, ensures the elimination of over 99 percent of pinholes in the fiberglass mat's surface. Additionally, the inclusion of a UV curable monomer or polymer in the polymer binder enhances the panel's durability and resistance to environmental factors. Overall, the patented gypsum panel offers a novel solution in the construction materials industry, providing improved quality and performance in building applications.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

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.