公开(公告)号：US20230312944A1

公开(公告)日：2023-10-05

申请号：US18021638

申请日：2021-08-18

申请人： BASF SE

发明人： Nikolay A. GRIGORENKO ,  Andre OSWALD ,  Gloria RUIZ GOMEZ

IPC分类号： C09D7/61 ,  C09D7/20 ,  C09D1/00 ,  B05D1/00 ,  B05D3/06

CPC分类号： C09D7/61 ,  C09D7/20 ,  C09D1/00 ,  B05D1/005 ,  B05D3/067 ,  B05D2601/24

摘要： The present invention relates to coating compositions, comprising i) single or mixed metal oxide nanoparticles, wherein the volume average diameter (Dv50) of the metal oxide nanoparticles is in the range of 1 to 20 nm; the nanoparticles comprise at least one volatile surface-modifying compound selected from alcohols, β-diketones, or salts thereof; carboxylic acids and β-ketoesters and Ge mixtures thereof, wherein the total amount of volatile surface-modifying compounds is at least 5% by weight, preferably at least 10% by weight based on the amount of metal oxide nano-particles, and ii) a solvent, coatings obtained therefrom and the use of the comositions for coating surface relief micro- and nanostructures (e.g. holograms), manufacturing of optical waveguides, solar panels, light outcoupling layers for display and lighting devices and anti-reflection coatings. Coatings obtained from the coating composition have a high refractive index and holograms are bright and visible from any angle, when the coating compositions are applied to them.