Dispersion liquid, composition, sealing member, light-emitting device, illumination tool, display device, and method for producing dispersion liquid
AssigneeSumitomo Osaka Cement Co., Ltd.
InventorsTomomi Ito, Kenji Harada, Takeshi Otsuka
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Abstract
A dispersion liquid according to the present invention is a dispersion liquid containing metal oxide particles which have been surface-modified with a silane compound and a silicone compound, in which, when the dispersion liquid is dried by vacuum drying to separate the metal oxide particles, and 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, Formula (1) below: IA/IB≤3.5 is satisfied (in the formula, “IA” represents a spectrum value at 3500 cm−1 and “IB” represents a spectrum value at 1100 cm−1).
Claims13
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.
Dependencies are inferred from the claim text.