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1. 发明授权

US11926531B2 Flaky alumina particles and method for producing flaky alumina particles 有权
公开(公告)号：US11926531B2
公开(公告)日：2024-03-12
申请号：US17259932
申请日：2018-07-26
申请人： DIC Corporation
发明人： Shingo Takada , Kazuo Itoya , Jian-Jun Yuan , Takayuki Kanematsu , Masamichi Hayashi , Fumihiko Maekawa , Yoshiyuki Sano
IPC分类号： B32B5/30 , B22F1/05 , B22F9/30 , C01F7/442 , C04B35/185 , C04B35/65
CPC分类号： C01F7/442 , B22F1/05 , B22F9/30 , B32B5/30 , C04B35/185 , C04B35/65 , B22F2302/253 , B22F2302/256 , B22F2304/10 , B32B2255/04
摘要： Flaky alumina particles including mullite in a surface layer of the flaky alumina particles. A method for producing flaky alumina particles including forming a mixture by mixing together an aluminum compound that contains elemental aluminum, a molybdenum compound that contains elemental molybdenum, and silicon or a silicon compound that contains elemental silicon, the aluminum compound being in an amount greater than or equal to 50 mass %, calculated as Al2O3, the molybdenum compound being in an amount less than or equal to 40 mass %, calculated as MoO3, the silicon or the silicon compound being in an amount of 0.5 mass % or greater and less than 10 mass %, calculated as SiO2, relative to a total mass of the flaky alumina particles taken as 100 mass %; and firing the mixture.

2. 发明授权

US09540453B2 Method for producing modified cellulose nanofibers 有权
标题翻译：生产改性纤维素纳米纤维的方法
公开(公告)号：US09540453B2
公开(公告)日：2017-01-10
申请号：US14899765
申请日：2014-05-13
申请人： DIC Corporation
发明人： Tomoaki Harada , Kenichi Hamada , Kazuo Itoya
IPC分类号： C08B3/12 , C08B15/00 , C08L1/10
CPC分类号： C08B15/00 , C08B3/12 , C08L1/10 , C08L2205/16
摘要： Provided are modified cellulose nanofibers that can be easily formed into a composite with a resin containing a solvent and a resin composition that contains the modified cellulose nanofibers. A method for producing modified cellulose nanofibers is characterized in that a step of obtaining modified cellulose by causing cellulose having hydroxyl groups to react with a resin having an intramolecular polybasic anhydride structure and a step of miniaturizing the modified cellulose are performed in the same step. In this method, the polybasic anhydride structure is a cyclic polybasic anhydride structure obtained by ring formation through dehydration condensation of carboxyl groups in the molecule.
摘要翻译：提供了可以容易地与含有溶剂的树脂和含有改性纤维素纳米纤维的树脂组合物形成复合材料的改性纤维素纳米纤维。改性纤维素纳米纤维的制造方法的特征在于，通过使具有羟基的纤维素与具有分子内多元酸酐结构的树脂反应获得改性纤维素的步骤和使改性纤维素小型化的步骤在同一步骤中进行。在该方法中，多元酸酐结构是通过分子中羧基的脱水缩合而形成环状的多元酸酐结构。

3. 发明授权

US11214494B2 Spinel compound oxide particle, method for producing the same, resin composition including spinel compound oxide particle, and molded article 有权
公开(公告)号：US11214494B2
公开(公告)日：2022-01-04
申请号：US16611621
申请日：2018-05-01
申请人： DIC Corporation
发明人： Kazuo Itoya , Masaki Iida , Jian-Jun Yuan , Yasuyo Yoshimoto , Hironobu Oki , Masamichi Hayashi
IPC分类号： C01F7/00 , C01F7/16 , C01G9/02 , C01G39/02 , C01G51/04 , C08K3/22 , C08L101/00
摘要： A spinel compound oxide particle includes metallic atoms, aluminum atoms, oxygen atoms, and molybdenum atoms, wherein the metallic atoms are selected from the group consisting of zinc atoms, cobalt atoms, and strontium atoms, and a crystallite size in a [111] plane is 100 nm or more. Included are a step (1) of firing a first mixture including a molybdenum compound and a metallic-atom-containing compound or a first mixture including a molybdenum compound, a metallic-atom-containing compound, and an aluminum compound to prepare an intermediate; and a step (2) of firing, at a temperature higher than a temperature selected in the step (1), a second mixture including the intermediate or a second mixture including the intermediate and an aluminum compound.

4. 发明授权

US11040887B2 Spinel particles, method for producing same and composition and molded article including spinel particles 有权
公开(公告)号：US11040887B2
公开(公告)日：2021-06-22
申请号：US16310942
申请日：2016-06-23
申请人： DIC Corporation
发明人： Hironobu Oki , Kazuo Itoya , Masaki Iida , Jian-Jun Yuan , Hiroshi Kinoshita
IPC分类号： C01F7/00 , C01F7/16 , C30B9/10
摘要： Alumina is generally used as an inorganic filler, while spinel, which is known to be lower in thermal conductivity than alumina, is used in applications such as gems, fluorescence emitters, catalyst carriers, adsorbents, photocatalysts and heat-resistant insulating materials, but not expected to be used as a thermally conductive inorganic filler. Thus, an object of the invention is to provide spinel particles having excellent thermal conductive properties. The invention relates to a spinel particle including magnesium, aluminum and oxygen atoms and molybdenum and having a [111] plane crystallite diameter of 220 nm or more.

5. 发明申请

US20200062607A1 SPINEL COMPOUND OXIDE PARTICLE, METHOD FOR PRODUCING THE SAME, RESIN COMPOSITION INCLUDING SPINEL COMPOUND OXIDE PARTICLE, AND MOLDED ARTICLE 审中-公开
公开(公告)号：US20200062607A1
公开(公告)日：2020-02-27
申请号：US16611621
申请日：2018-11-11
申请人： DIC Corporation
发明人： Kazuo Itoya , Masaki Iida , Jian-Jun Yuan , Yasuyo Yoshimoto , Hironobu Oki , Masamichi Hayashi
IPC分类号： C01F7/16 , C01G9/02 , C01G39/02 , C01G51/04 , C08L101/00 , C08K3/22
摘要： A spinel compound oxide particle includes metallic atoms, aluminum atoms, oxygen atoms, and molybdenum atoms, wherein the metallic atoms are selected from the group consisting of zinc atoms, cobalt atoms, and strontium atoms, and a crystallite size in a [111] plane is 100 nm or more. Included are a step (1) of firing a first mixture including a molybdenum compound and a metallic-atom-containing compound or a first mixture including a molybdenum compound, a metallic-atom-containing compound, and an aluminum compound to prepare an intermediate; and a step (2) of firing, at a temperature higher than a temperature selected in the step (1), a second mixture including the intermediate or a second mixture including the intermediate and an aluminum compound.

6. 发明授权

US11905420B2 Tabular alumina particles and method of producing tabular alumina particles 有权
公开(公告)号：US11905420B2
公开(公告)日：2024-02-20
申请号：US17265354
申请日：2019-08-09
申请人： DIC Corporation
发明人： Shingo Takada , Hironobu Oki , Jian-Jun Yuan , Kazuo Itoya , Yoshiyuki Sano
IPC分类号： C09C1/40 , C09C3/06
CPC分类号： C09C1/407 , C09C3/063 , C01P2002/85 , C01P2004/03 , C01P2004/20 , C01P2004/54 , C01P2004/61 , C01P2004/84 , C01P2006/10
摘要： To provide plate-like alumina particles that are less likely to wear apparatuses. Plate-like alumina particles containing germanium or a germanium compound. The plate-like alumina particles preferably have a molar ratio of Ge to Al, [Ge]/[Al], of 0.08 or more as determined in an XPS analysis. The plate-like alumina particles preferably contain the germanium or germanium compound in a surface layer. The plate-like alumina particles preferably have a density of 3.7 g/cm3 or more and 4.1 g/cm3 or less. The plate-like alumina particles preferably have a molar ratio of Ge to Al, [Ge]/[Al], of 0.08 or less as determined in an XRF analysis.

7. 发明授权

US11279830B2 Surface-treated spinel particles, method for producing the same, resin composition, and molded article 有权
公开(公告)号：US11279830B2
公开(公告)日：2022-03-22
申请号：US16334557
申请日：2017-09-21
申请人： DIC Corporation
发明人： Kazuo Itoya , Atsushi Oshio , Hironobu Oki , Masaki Iida , Yasuyo Sakamoto , Masamichi Hayashi , Takayuki Kanematsu , Fumihiko Maekawa , Jian-Jun Yuan , Hiroshi Kinoshita
IPC分类号： C09C1/40 , C08K9/04 , C08K3/22 , C08K9/06
摘要： Provided is a surface-treated spinel particle (B) including a spinel particle (A) including a magnesium atom, an aluminum atom, and an oxygen atom and a surface treatment layer disposed at least a portion of the surface of the spinel particle (A). The surface treatment layer includes a surface-treating agent including an organic compound or a cured product of the surface-treating agent. The spinel particle (A) further includes molybdenum. The crystallite diameter of the [111] plane of the spinel particle (A) is 220 nm or more. Also provided are a method for producing the surface-treated spinel particle (B), a resin composition including the surface-treated spinel particle (B), and a molded article.

8. 发明申请

US20210301144A1 TABULAR ALUMINA PARTICLES AND METHOD OF PRODUCING TABULAR ALUMINA PARTICLES 有权
公开(公告)号：US20210301144A1
公开(公告)日：2021-09-30
申请号：US17265354
申请日：2019-08-09
申请人： DIC Corporation
发明人： Shingo Takada , Hironobu Oki , Jian-Jun Yuan , Kazuo Itoya , Yoshiyuki Sano
IPC分类号： C09C1/40 , C09C3/06
摘要： To provide plate-like alumina particles that are less likely to wear apparatuses. Plate-like alumina particles containing germanium or a germanium compound. The plate-like alumina particles preferably have a molar ratio of Ge to Al, [Ge]/[Al], of 0.08 or more as determined in an XPS analysis. The plate-like alumina particles preferably contain the germanium or germanium compound in a surface layer. The plate-like alumina particles preferably have a density of 3.7 g/cm3 or more and 4.1 g/cm3 or less. The plate-like alumina particles preferably have a molar ratio of Ge to Al, [Ge]/[Al], of 0.08 or less as determined in an XRF analysis.

9. 发明申请

US20210301143A1 SURFACE-TREATED SPINEL PARTICLES, METHOD FOR PRODUCING THE SAME, RESIN COMPOSITION, AND MOLDED ARTICLE 有权
公开(公告)号：US20210301143A1
公开(公告)日：2021-09-30
申请号：US16334557
申请日：2017-09-21
申请人： DIC Corporation
发明人： Kazuo Itoya , Atsushi Oshio , Hironobu Oki , Masaki Iida , Yasuyo Sakamoto , Masamichi Hayashi , Takayuki Kanematsu , Fumihiko Maekawa , Jian-Jun Yuan , Hiroshi Kinoshita
IPC分类号： C09C1/40 , C08K9/04 , C08K9/06 , C08K3/22
摘要： Provided is a surface-treated spinel particle (B) including a spinel particle (A) including a magnesium atom, an aluminum atom, and an oxygen atom and a surface treatment layer disposed at least a portion of the surface of the spinel particle (A). The surface treatment layer includes a surface-treating agent including an organic compound or a cured product of the surface-treating agent. The spinel particle (A) further includes molybdenum. The crystallite diameter of the [111] plane of the spinel particle (A) is 220 nm or more. Also provided are a method for producing the surface-treated spinel particle (B), a resin composition including the surface-treated spinel particle (B), and a molded article.

10. 发明申请

US20200308014A1 SPINEL PARTICLES, METHOD FOR PRODUCING SAME AND COMPOSITION AND MOLDED ARTICLE INCLUDING SPINEL PARTICLES 审中-公开
公开(公告)号：US20200308014A1
公开(公告)日：2020-10-01
申请号：US16310942
申请日：2016-06-23
申请人： DIC Corporation
发明人： Hironobu Oki , Kazuo Itoya , Masaki Iida , Jian-jun Yuan , Hiroshi Kinoshita
IPC分类号： C01F7/16
摘要： Alumina is generally used as an inorganic filler, while spinel, which is known to be lower in thermal conductivity than alumina, is used in applications such as gems, fluorescence emitters, catalyst carriers, adsorbents, photocatalysts and heat-resistant insulating materials, but not expected to be used as a thermally conductive inorganic filler. Thus, an object of the invention is to provide spinel particles having excellent thermal conductive properties. The invention relates to a spinel particle including magnesium, aluminum and oxygen atoms and molybdenum and having a [111] plane crystallite diameter of 220 nm or more.

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