公开(公告)号：US20250136789A1

公开(公告)日：2025-05-01

申请号：US18837880

申请日：2023-03-28

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Ryo TAKEDA ,  Tomomi ITO ,  Kenji HARADA

IPC: C08K9/06 ,  C08L101/00

Abstract: A dispersion liquid including metal oxide particles surface-modified with a surface-modifying material, and a hydrophobic solvent, where said particles have a refractive index of 1.70 or higher and 2.00 or lower, the surface-modifying material includes a silane compound and a silicone compound, the silane compound includes a methyl group-containing silane compound, and if the dispersion liquid and methyl phenyl silicone are mixed so a total mass ratio of said particles and the surface-modifying material to methyl phenyl silicone is 7:93, thereby obtaining a cured product having a thickness of 1 mm, a scattering fraction at a wavelength of 450 nm of the cured product is 17% or more and 38% or less, and a value obtained by dividing the scattering fraction at a wavelength of 450 nm of the cured product by a scattering fraction at a wavelength of 600 nm of the cured product is 1.25 or higher.

公开(公告)号：US20230365787A1

公开(公告)日：2023-11-16

申请号：US18029101

申请日：2021-09-29

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Kenji HARADA ,  Tomomi ITO ,  Ryo TAKEDA

IPC: C08K9/08 ,  C08J3/07 ,  C09J11/04 ,  C09J183/04

CPC classification number: C08K9/08 ,  C08J3/07 ,  C09J11/04 ,  C09J183/04 ,  C08J2383/04 ,  C08K2201/014

Abstract: In a dispersion liquid according to the present invention, regarding metal oxide particles that are obtained by vacuum-drying a dispersion liquid containing the metal oxide particles which have been surface-modified by at least one kind of a silane compound containing a methyl group and a hydrocarbon group having 2 or more carbon atoms and at least one kind of silicone compound, in a case where a transmission spectrum in a wavenumber range of 800 cm-1 or higher and 3,800 cm-1 or lower is measured by FT-IR, and values of the transmission spectrum are standardized, the following expression (1) is satisfied.
IA/IB ≤ 3.5 (1)
(“IA” represents a spectrum value standardized at 3,500 cm-1, and “IB” represents a spectrum value standardized at 1,100 cm-1).

公开(公告)号：US20250101231A1

公开(公告)日：2025-03-27

申请号：US18730317

申请日：2023-02-24

Applicant: SUMITOMO OSAKA CEMENT CO., LTD. ,  Kyoto University

Inventor： Kazuo TANAKA ,  Masayuki GON ,  Yoshiki CHUJO ,  Ryo TAKEDA ,  Tomomi ITO ,  Kenji HARADA

IPC: C09B45/22 ,  C09B57/10 ,  C09C3/08 ,  G01N21/31

Abstract: A pigment of the present invention is a compound represented by General Formula (1) or General Formula (2) (in the above-described formulae, M is Sn or Ge, X is C or N, R1 is an alkyl group or a phenyl group, Y1 and Y2 are each hydrogen, a halogen group, a methyl group, an alkoxy group, a phenyl group, a diphenylamide group, a thiophenyl group, or a phenylethynyl group, and Z is a single bond or represented by Formula (3), where R2 is an alkyl group or a phenyl group).

公开(公告)号：US20240018341A1

公开(公告)日：2024-01-18

申请号：US18029092

申请日：2021-09-29

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Kenji HARADA ,  Tomomi ITO ,  Ryo TAKEDA

IPC: C08K9/08 ,  H01L33/56 ,  C08J3/07

CPC classification number: C08K9/08 ,  H01L33/56 ,  C08J2383/04 ,  H01L2933/005 ,  C08K2201/003 ,  C08J3/07

Abstract: A dispersion liquid according to the present invention contains metal oxide particles which have been surface-modified by at least one kind of silane compound and a solvent, the silane compound contains a methyl group or a methyl group and a hydrocarbon group having 2 or more carbon atoms, in a case where a transmission spectrum of the metal oxide particles that are obtained by drying the dispersion liquid by vacuum drying is measured within a wavenumber range of 800 cm−1 to 3,800 cm−1 with a Fourier transform infrared spectrophotometer, and values of the transmission spectrum are standardized such that a maximum value of the transmission spectrum in the range is 100 and a minimum value is 0, the following expression (1) is satisfied.


IA/IB≤3.5   (1)

公开(公告)号：US20230416500A1

公开(公告)日：2023-12-28

申请号：US18029098

申请日：2021-09-29

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Kenji HARADA ,  Tomomi ITO ,  Ryo TAKEDA

IPC: C08K9/06 ,  C08K3/22 ,  C09C3/08 ,  C08L83/04 ,  H01L33/56

CPC classification number: C08K9/06 ,  C08K3/22 ,  C08K2003/2244 ,  C08L83/04 ,  H01L33/56 ,  C09C3/08

Abstract: In a dispersion liquid according to the present invention, regarding metal oxide particles that are obtained by vacuum-drying a dispersion liquid containing metal oxide particles which have been surface-modified by a methyl group and a phenyl group in a predetermined ratio, in a case where a transmission spectrum in a wavenumber range of 800 cm−1 or higher and 3,800 cm−1 or lower is measured by FT-IR, and values of the transmission spectrum are standardized, IA/IB≤3.5 is satisfied (IA represents a spectrum value standardized at 3,500 cm−1, and IB represents a spectrum value standardized at 1,100 cm−1).