公开(公告)号：US12264108B2

公开(公告)日：2025-04-01

申请号：US18254296

申请日：2020-12-16

Applicant: DIC Corporation

Inventor： Shaowei Yang ,  Minoru Tabuchi ,  Jianjun Yuan ,  Cheng Liu ,  Meng Li ,  Wei Zhao ,  Jian Guo

IPC: C04B35/488 ,  C04B35/64

Abstract: It relates to zirconia particles containing molybdenum and each having a polyhedron shape. The molybdenum is preferably unevenly distributed in surface layers of the zirconia particles. It also relates to a method for producing the zirconia particles. The method includes mixing a zirconium compound and a molybdenum compound to form a mixture and firing the mixture.

公开(公告)号：US20230131773A1

公开(公告)日：2023-04-27

申请号：US17766306

申请日：2019-10-09

Applicant: DIC Corporation

Inventor： Meng Li ,  Shingo Takada ,  Tomoki Dohi ,  Jianjun Yuan ,  Cheng Liu ,  Wei Zhao ,  Shaowei Yang

IPC: C01F7/442 ,  C01F7/30

Abstract: The composite particle of the present invention includes an alumina particle having a card-house structure which is formed of three or more pieces of plate-like alumina and in which the pieces of plate-like alumina are fixed to each other; and an inorganic coating part provided on a surface of the plate-like alumina.

公开(公告)号：US20230102456A1

公开(公告)日：2023-03-30

申请号：US17766298

申请日：2019-10-09

Applicant: DIC Corporation

Inventor： Meng Li ,  Shingo Takada ,  Tomoki Dohi ,  Masamichi Hayashi ,  Jianjun Yuan ,  Taro Morimitsu ,  Shaowei Yang ,  Cheng Liu ,  Wei Zhao

IPC: C09C1/40 ,  C09C3/06 ,  C09C3/04 ,  C09C3/00

Abstract: The present invention provides an alumina particle containing molybdenum (Mo) and an inorganic coating part provided on the surface of the alumina particle.

公开(公告)号：US20230097772A1

公开(公告)日：2023-03-30

申请号：US17766712

申请日：2019-10-09

Applicant: DIC Corporation

Inventor： Shaowei Yang ,  Masamichi HAYASHI ,  Hironobu OKI ,  Taro MORIMITSU ,  Jianjun YUAN ,  Yasuto MURATA ,  Cheng LIU ,  Wei ZHAO

IPC: C04B35/117 ,  C04B35/64 ,  C30B29/20 ,  C30B29/22

Abstract: A plate-like alumina particle containing a coloring component is provided. A plate-like alumina particle containing molybdenum, silicon, and a coloring component. A method for manufacturing the plate-like alumina particle, the method including the steps of mixing an aluminum compound containing an aluminum element, a molybdenum compound containing a molybdenum element, silicon or a silicon compound, and a coloring component so as to produce a mixture and calcining the resulting mixture.

公开(公告)号：US20230096825A1

公开(公告)日：2023-03-30

申请号：US17766716

申请日：2019-10-09

Applicant: DIC Corporation

Inventor： Shaowei Yang ,  Tomoki DOHI ,  Hironobu OKI ,  Jianjun YUAN ,  Cheng LIU ,  Meng LI ,  Wei ZHAO

IPC: C01F7/30 ,  C01F7/442 ,  C08K7/24

Abstract: A plate-like alumina particle, in which a ratio I (006)/I (113) of a peak intensity 1(006) at 20=41.6±0.3 degrees which corresponds to a (006) face to a peak intensity I(113) at 20=43.3±0.3 degrees which corresponds to a (113) face of diffraction peaks obtained by X-ray diffraction measurement using a Cu—Kα ray, is 0.2 or more. A method for manufacturing the plate-like alumina particle including mixing an aluminum compound including an aluminum element, a molybdenum compound including a molybdenum element, and a shape-controlling agent to produce a mixture and firing the mixture.

公开(公告)号：US20240101829A1

公开(公告)日：2024-03-28

申请号：US18271565

申请日：2021-12-31

Applicant: DIC Corporation

Inventor： Meng Li ,  Takanori Watanabe ,  Jianjun Yuan ,  Shaowei Yang ,  Xuan Li ,  Wei Zhao ,  Jian Guo

IPC: C09C1/00 ,  C08K9/02 ,  C09D5/36 ,  C09D7/40 ,  C09D7/62 ,  C09D11/037

CPC classification number: C09C1/0051 ,  C08K9/02 ,  C09C1/0021 ,  C09C1/0024 ,  C09D5/36 ,  C09D7/62 ,  C09D7/70 ,  C09D11/037 ,  C01P2002/52 ,  C01P2004/03 ,  C01P2004/24 ,  C01P2004/84 ,  C09C2200/1016 ,  C09C2200/308 ,  C09C2220/103 ,  C09C2220/106

Abstract: Composite particles of the present invention include alumina particles and an inorganic coating disposed on a surface of the alumina particles, the alumina particles containing molybdenum (Mo), the inorganic coating including a composite metal oxide.

公开(公告)号：US20240059899A1

公开(公告)日：2024-02-22

申请号：US18271681

申请日：2021-01-13

Applicant: DIC Corporation

Inventor： Meng Li ,  Takanori Watanabe ,  Jianjun Yuan ,  Shaowei Yang ,  Xuan Li ,  Wei Zhao ,  Jian Guo

IPC: C09C1/40 ,  C09C3/06

CPC classification number: C09C1/407 ,  C09C3/063 ,  C01P2002/52 ,  C01P2004/01 ,  C01P2004/20 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2004/84

Abstract: The composite particles contain alumina particles with a card-house structure formed of three or more plate-like alumina particles that adhere to each other and an inorganic covering portion located on a surface of the plate-like alumina particles and containing a composite metal oxide.

公开(公告)号：US20190308883A1

公开(公告)日：2019-10-10

申请号：US16467548

申请日：2016-12-22

Applicant: DIC Corporation

Inventor： Jianjun Yuan ,  Shaowei Yang ,  Cheng Liu ,  Shizheng Hou

IPC: C01F7/30 ,  C08K3/22 ,  C09K5/14

Abstract: α-Alumina in the related art has an average particle diameter of 2 to 20 μm, and it can be said that the α-alumina does not necessarily a large particle diameter. As a result, with respect to the molded product obtained from a resin composition including the α-alumina in the related art as a filler, high heat dissipation characteristics are not obtained, in some cases. An object of the present invention is to provide means of producing α-alumina having a large particle diameter according to a flux method. There is provided a method of producing α-alumina particles including molybdenum which have an average particle diameter of greater than 20 μm, and the production method includes a step of firing an aluminum compound in the presence of a molybdenum compound and a potassium compound.