US 12,460,084 B2
Dispersion liquid, composition, sealing member, light-emitting device, illumination tool, display device, and method for producing dispersion liquid
Tomomi Ito, Tokyo (JP); Kenji Harada, Tokyo (JP); and Takeshi Otsuka, Tokyo (JP)
Assigned to SUMITOMO OSAKA CEMENT CO., LTD., Tokyo (JP)
Appl. No. 17/599,461
Filed by SUMITOMO OSAKA CEMENT CO., LTD., Tokyo (JP)
PCT Filed Mar. 24, 2020, PCT No. PCT/JP2020/012985
§ 371(c)(1), (2) Date Sep. 28, 2021,
PCT Pub. No. WO2020/203462, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 2019-066737 (JP), filed on Mar. 29, 2019.
Prior Publication US 2022/0177709 A1, Jun. 9, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C09C 3/12 (2006.01); C01G 25/02 (2006.01); C09C 3/10 (2006.01); C09D 7/40 (2018.01); C09D 7/62 (2018.01); C09D 183/04 (2006.01); H10H 20/854 (2025.01)
CPC C09C 3/12 (2013.01) [C01G 25/02 (2013.01); C09C 3/10 (2013.01); C09D 7/62 (2018.01); C09D 7/67 (2018.01); C09D 183/04 (2013.01); H10H 20/854 (2025.01); C01P 2002/82 (2013.01); C01P 2004/51 (2013.01); C01P 2004/64 (2013.01); C01P 2006/60 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A dispersion liquid comprising:
metal oxide particles which have been surface-modified with a silane compound and a silicone compound,
wherein, when the dispersion liquid is dried by vacuum drying to separate the metal oxide particles, a transmission spectrum of the separated metal oxide particles is measured in a wavenumber range from 800 cm−1 to 3800 cm−1 with a Fourier transform infrared spectrophotometer, and spectrum values measured in the range are standardized such that a maximum value of the spectrum values is set to 100 and a minimum value of the spectrum values is set to 0,
Formula (1) below is satisfied:
IA/IB≤3.5  (1)
(in the formula, “IA” represents a spectrum value at 3500 cm−1 and “IB” represents a spectrum value at 1100 cm−1), and
wherein the amount of surface-modifying material which consists of the silane compound and the silicone compound is 100% by mass or more and 1000% by mass or less with respect to the amount of the metal oxide particles.