OMV has been granted a patent for a lamination process to produce multilayer laminates, specifically for photovoltaic modules. The process involves assembling layers in a specific order, applying pressure and heat, and ensuring thickness uniformity. The resulting laminate has a low thickness variation and is suitable for solar energy applications. GlobalData’s report on OMV 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 OMV, Corrosion resistant fuel additives was a key innovation area identified from patents. OMV's grant share as of January 2024 was 50%. Grant share is based on the ratio of number of grants to total number of patents.
Lamination process for producing photovoltaic module with specific layer elements
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A recently granted patent (Publication Number: US11884044B2) outlines a process for producing a multilayer laminate that serves as a photovoltaic (PV) module. The layers in the laminate are arranged in a specific order, starting with a protective front layer element, followed by a front encapsulation layer element, a photovoltaic element, a rear encapsulation layer element, and a protective back layer element. The front and back protective layers are made of glass, while the encapsulation layers can be polymeric. The process involves steps such as assembly, heating, pressure build-up, pressure holding, and recovery, with a key requirement being that the pressure during the holding step should not exceed 790 mbar. Additionally, the average thickness variation of the resulting laminate should be 60% or less, calculated based on the thickness variation at the edges compared to the middle of the laminate.
Furthermore, the patent details various aspects of the polymer composition used in the process, including the specific types of polymers, comonomers, and functional groups involved. The composition may include ethylene polymers with polar comonomers or alpha-olefin comonomers, as well as silane groups. Importantly, the process emphasizes that no peroxide crosslinking agent should be introduced to the polymer before or during lamination. The duration and pressure levels during the pressure holding step are also specified, with variations allowed within certain ranges. Overall, the patented process aims to produce high-quality PV modules with consistent thickness and structural integrity, utilizing a carefully controlled lamination process.
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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.
