专利号:US-10336912-B2 优先权日:2014-08-01 标 题 :Methods for producing and using aqueous polyurethane/polyacrylate hybrid dispersions and use of said aqueous polyurethane/polyacrylate hybrid dispersions in coating agents 发明人:JAHNS EKKEHARD; MANGEL TIMO; ROESCH CHRISTINE; ROMANATO PAOLA; BURK YENI; PAKUSCH JOACHIM 权利人:BASF SE 摘要:The present invention provides an aqueous polyurethane (PU)-polyacrylate hybrid dispersion obtainable by free radical polymerization of at least one acrylate polymer (A1) in the presence of at least one polyurethane (P1), a process for preparing these aqueous polyurethane-polyacrylate hybrid dispersions, wherein said process comprises a) preparing an aqueous polyurethane dispersion and b) using the polyurethane dispersion thus prepared as raw material for the further synthesis of a polyacrylate dispersion, and the use of the hybrid dispersion thus obtained as binder in filled coating materials, particularly as a binder for flexible roof coatings.
专利号:US-2025187071-A1 优先权日:2022-08-16 标题 :Multi-principal element alloy (mpea) nanoparticles 发明人:WANG CHAO; XU FEI 权利人:UNIV JOHNS HOPKINS 摘要:The present disclosure relates to multi-principal element alloy (MPEA) nanoparticles and the synthesis of said MPEA nanoparticles in organic solutions. The present disclosure also relates to catalysts comprising the MPEA nanoparticles for use, for example, in fuel cells and water electrolyzers.
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