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1.发明公开
公开(公告)号：EP4403606A1
公开(公告)日：2024-07-24
申请号：EP22866295.3
申请日：2022-08-04
发明人： SONG, Xibin , MA, Haiyang , ZHANG, Dong , ZHANG, Wei , XI, Hongliang , AI, Liaodong , ZHAO, Jianbin
摘要： A nano-zirconia dispersion and a preparation method thereof as well as a monomer dispersion and an optical film obtained therefrom are provided. The present application belongs to the field of fine chemicals. The nano-zirconia dispersion includes nano-zirconia particles in an amount of 45-75 wt% and has a refractive index of 1.420-1.565, where it is observed that the nano-zirconia particles are surface-grafted with functional groups having respective peak ranges as follows when they are characterized by infrared spectroscopy: hydroxyl group: 3200 cm-1-3600 cm-1, Zr-O-Zr: 480 cm-1-850 cm-1, saturated carbon-hydrogen bond: 2850 cm-1-2960 cm-1, ester carbonyl group: 1700 cm-1-1750 cm-1, delocalized conjugated ester group: 1460 cm-1-1580 cm-1, Si-O-Zr: 800 cm-1-1200 cm-1, and C-O ether bond: 1000 cm-1-1200 cm-1. The nano-zirconia dispersion has a high dispersing content. The nano-zirconia monomer dispersion is obtained based on the nano-zirconia dispersion and has a dispersing content up to 55-85 wt% and a refractive index of 1.620-1.720.
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2.发明公开
公开(公告)号：EP4438561A1
公开(公告)日：2024-10-02
申请号：EP22931733.4
申请日：2022-09-16
发明人： SONG, Xibin , MA, Haiyang , LYU, Yuxing , AI, Liaodong , XI, Hongliang , ZHANG, Yan
IPC分类号： C01G25/02
摘要： The present invention relates to the technical field of zirconium oxide, and provides a zirconium oxide monomer dispersion and a preparation method therefor, an optical film and a display screen. The zirconium oxide monomer dispersion is mainly prepared from raw materials such as nano zirconium oxide, monomer resin, a stabilizer and a refractive index regulator. Using the nano zirconium oxide as inorganic dispersion particles can reduce the scattering effect of particles on light, thereby improving the transmissivity of the system; the addition of the stabilizer can improve the dispersity and uniformity of the zirconium oxide monomer dispersion; in addition, due to the addition of the refractive index regulator, the refractive indexes of the raw materials in the whole system can be better matched, thereby improving the transmissivity of the system. The present invention also provides a preparation method for the zirconium oxide monomer dispersion, the process is simple, and the entire dispersion process does not require the participation of an intermediate phase, so that the process steps can be greatly reduced, and the cost is lowered.
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3.发明公开
公开(公告)号：EP4417662A1
公开(公告)日：2024-08-21
申请号：EP22941427.1
申请日：2022-09-15
发明人： SONG, Xibin , MA, Haiyang , AI, Liaodong , XI, Hongliang
摘要： The present invention provides a zirconia resin-based dispersion liquid, a UV-curable adhesive, a preparation method and use thereof, which relates to the technical field of optical film preparation. The zirconia resin-based dispersion liquid is mainly composed of modified zirconia particles and resin, wherein the surface of the modified zirconia particles has hydrogen bond donor groups, and the grafted amount of the hydrogen bond donor groups on the surface of the zirconia particles is 1-20 wt%. The modified zirconia particles in the above zirconia resin-based dispersion liquid can not only increase the liposolubility of the zirconia particles due to the introduction of hydrogen bond donor groups on the surface, but also have the hydrogen bond interaction with alkoxy bisphenol A resin (BPA resin), thereby increasing the compatibility and stability of the zirconia resin-based dispersion liquid and the BPA resin.
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