Exxon Mobil has patented a process for creating a renewable, high-performance polyester from a 5,5′-Di-(protected)-2,2′-bifuran derived from furfural. The process involves coupling protected 2-furaldehyde to form the bifuran, which can then be deprotected, functionalized, and polymerized to produce the polyester. GlobalData’s report on Exxon Mobil 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 Exxon Mobil, Microscale biofuel reactors was a key innovation area identified from patents. Exxon Mobil's grant share as of February 2024 was 68%. Grant share is based on the ratio of number of grants to total number of patents.

A recently granted patent (Publication Number: US11926605B2) discloses a furan coupling process involving the coupling of a protected 2-furaldehyde to form a 5,5'-di-(protected)-2,2'-bifuran. The process includes various steps such as oxidative addition, metalation, and reductive elimination, with the option of using an oxidant and/or a catalyst. Additionally, the coupling process may involve palladation for efficient synthesis.

Furthermore, the patent outlines the protection of 2-furaldehyde by reacting it with an alkylene diol to form a 2-furfural alkylene diol acetal. The protected 2-furaldehyde is then deprotected to obtain (2,2'-bifuran)-5,5'-dicarbaldehyde. Subsequent steps involve polymerization of the 5,5'-di(protected)-2,2'-bifuran to form a polyester comprising (2,2'-bifuran)-5,5'-dicarboxylate structural units. The process also includes the formation of intermediate compounds and the conversion of (2,2'-bifuran)-5,5'-dicarbaldehyde to (2,2'-bifuran)-5,5'-dicarboxylic acid or dialkyl (2,2'-bifuran)-5,5'-dicarboxylate, among other steps. Overall, the patent details a comprehensive method for the synthesis of bifuran-based polyesters with specific structural units, highlighting the potential for innovative applications in the field of materials science.

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

GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. 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.