Repsol has been granted a patent for stable modified polymer polyol dispersions, involving polymeric particles in a liquid polyol mixture. The process includes reacting compounds with basic-nitrogen atoms and phosphorus atoms, resulting in improved polyurethane materials. GlobalData’s report on Repsol 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 Repsol, Photoelectrochemical water splitting was a key innovation area identified from patents. Repsol's grant share as of March 2024 was 56%. Grant share is based on the ratio of number of grants to total number of patents.
A recently granted patent (Publication Number: US11912812B2) discloses a stable modified polymer polyol dispersion of polymeric particles in a liquid polyol mixture. The patent claims that this dispersion is obtainable through a process involving the preparation of polymeric particles in the presence of the liquid polyol mixture by reacting compounds bearing basic-nitrogen atoms with a mixture of compounds bearing phosphorus atoms. The patent specifies various compounds and their concentrations, including [bis(hydroxymethyl)phosphanyl]methanol (THP), tetrakis(hydroxymethyl) phosphonium salt (THPX), and others, to achieve the stable modified polymer polyol dispersion.
Furthermore, the patent details a process for the preparation of the stable modified polymer polyol dispersion, involving mixing a polymeric particle precursor, base polyol, and monofunctional polyetheramine. The process includes specific steps such as mixing the base polyol with the monofunctional polyetheramine, preparing polymeric particles by adding compounds bearing basic-nitrogen atoms and compounds bearing phosphorus atoms, and other optional steps like filtering and oxidizing. The patent also covers the use of the stable modified polymer polyol in preparing polyurethane materials with low formaldehyde emissions, meeting international standards for indoor air quality. Overall, the patent provides a detailed and specific method for producing a stable modified polymer polyol dispersion and its application in polyurethane foam production with reduced formaldehyde emissions.
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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.
