Subsea 7 has been granted a patent for a method of manufacturing a spacer for a pipe-in-pipe system. The process involves mixing aerogel particles with a polymer, molding the mixture, and solidifying the polymer to create the spacer. The resulting product features aerogel particles dispersed in a solidified polymer matrix. GlobalData’s report on Subsea 7 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 Subsea 7, Ship loading/unloading cableways was a key innovation area identified from patents. Subsea 7's grant share as of January 2024 was 56%. Grant share is based on the ratio of number of grants to total number of patents.
Manufacturing spacer for pipe-in-pipe system using aerogel particles
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A recently granted patent (Publication Number: US11885457B2) discloses a method for manufacturing a spacer for a pipe-in-pipe system. The method involves mixing aerogel particles with a polymer to create a mixture where the particles are dispersed in the polymer. This mixture is then moulded and the polymer is solidified at a temperature ranging from 30°C to 250°C, resulting in the formation of the spacer or a component of the spacer. The aerogel particles are suspended in a matrix of the solidified polymer, with the polymer being a thermoset.
Furthermore, the method includes various steps such as injection-moulding or pouring the mixture into a mould cavity, mixing the aerogel particles with the polymer in liquid or granular form, and solidifying the polymer through processes like heating, catalysing, or cooling. The aerogel particles used in the method are specified to be polyimide aerogel particles with a diameter between 5 µm and 50 µm. Additionally, the percentage of aerogel particles in the mixture by volume ranges from 5% to 50%. The patent also mentions the temperature and pressure conditions at which the filler is mixed with the polymer and the polymer is solidified. The polymer options include epoxy, nylon, polyester, vinyl ester, polypropylene, or dicyclopentadiene, and the method results in the creation of a pipe-in-pipe structure as well.
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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.
