Tenneco has patented a wrappable textile sleeve with a method to reduce cracking in the foil layer. By using specific thicknesses for the polymeric film and metal foil layers, the innovation aims to enhance durability and performance. GlobalData’s report on Tenneco 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 Tenneco, Piston head combustion chambers was a key innovation area identified from patents. Tenneco's grant share as of February 2024 was 64%. Grant share is based on the ratio of number of grants to total number of patents.

Wrappable textile sleeve with reduced cracking in foil layer

Source: United States Patent and Trademark Office (USPTO). Credit: Tenneco Inc

A recently granted patent (Publication Number: US11926135B2) discloses a method aimed at reducing cracking in the foil layer of a wrappable textile sleeve. The method involves providing a textile layer, a preshrunk polymeric film layer, and a metal foil layer with specific thickness ranges. The preshrunk polymeric film layer is bonded directly to the textile layer, followed by bonding the metal foil layer directly to the polymeric film layer. This configuration ensures that the textile layer serves as the inner layer of the sleeve, while the metal foil layer acts as the outer layer, ultimately reducing the occurrence of cracking in the foil layer.

Furthermore, the method includes additional steps such as using soft aluminum for the metal foil layer, a woven textile layer, and incorporating discrete circumferentially extending annular bands in the textile layer. By providing specific thickness ranges for the polymeric film layer and metal foil layer, along with utilizing a preshrunk polymeric film layer and a dead soft metal foil layer, the method aims to enhance the durability and performance of the wrappable textile sleeve. The inclusion of different diameters in the weft yarns of the textile layer adds to the structural integrity of the sleeve, contributing to the overall effectiveness of reducing cracking in the foil layer.

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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.