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1. 发明公开

EP4082623A1 SILICA MICROCAPSULES 审中-实审
公开(公告)号：EP4082623A1
公开(公告)日：2022-11-02
申请号：EP20907520.9
申请日：2020-12-28
申请人： Kao Corporation
发明人： SAWADA, Risa , MOROFUJI, Tatsuya , YAMAZAKI, Daisuke , KOGA, Yoshito , ICHIKAWA, Tomohiko , KIYOFUJI, Harumi
IPC分类号： A61Q13/00 , A61K9/10 , A61K9/50 , A61K8/04 , A61K8/11 , A61K8/25 , A61K8/34 , A61K8/891 , A61K47/02 , A61K47/10 , A61K47/34 , B01J13/14 , C11B9/00
摘要： The present invention relates to silica microcapsules, each of which includes a shell, and a core containing one or more organic compounds inside the shell, a softener composition containing the silica microcapsules, and a method of producing the silica microcapsules. In the silica microcapsules, the shell contains silica as a constituent component, and the organic compound contains a primary alcohol.

2. 发明公开

EP4269550A1 METHOD FOR PRODUCING SILICA MICROCAPSULE 审中-实审
公开(公告)号：EP4269550A1
公开(公告)日：2023-11-01
申请号：EP20968029.7
申请日：2020-12-28
申请人： Kao Corporation
发明人： KOGA, Yoshito
IPC分类号： C11D17/08 , A61K9/50 , A61K8/11 , A61K8/89 , B01J13/14 , C11B9/00
摘要： The present invention relates to [1] a method for producing a silica microcapsule having a shell containing silica as a constituent component and a core containing one or more organic compounds, the method including a step of subjecting an emulsified liquid obtained by emulsifying an aqueous phase component containing a cationic surfactant and an oil phase component containing one or more organic compounds and a silica source to a sol-gel reaction in the presence of one or more sulfur-containing ions selected from the group consisting of a sulfate ion, a sulfite ion, and a sulfonate ion to form the silica microcapsule, and [2] a water dispersion containing a silica microcapsule having a shell containing silica as a constituent component and a core containing one or more organic compounds, in which a total content of a sulfate ion, a sulfite ion, and a sulfonate ion is 10 to 500 ppm.

3. 发明公开

EP4364813A1 AQUEOUS MICROCAPSULE DISPERSION 审中-实审
公开(公告)号：EP4364813A1
公开(公告)日：2024-05-08
申请号：EP22833245.8
申请日：2022-06-29
申请人： Kao Corporation
发明人： KOGA, Yoshito , FUKUZUMI, Keita
IPC分类号： A61Q1/00 , A61Q19/00 , A61K8/11 , A61K8/25 , A61K8/73 , B01J13/14
CPC分类号： A61K8/11 , A61K8/25 , A61K8/73 , A61Q1/00 , A61Q19/00 , B01J13/14
摘要： The present invention relates to an aqueous microcapsule dispersion liquid containing a component (A) and a component (B) below: component (A): microcapsules having a shell containing an inorganic material as a constitutional component, and a core containing one or more kind of an organic compound, inside the shell, and component (B): a polysaccharide including a cationically modified branched chain structure.

4. 发明公开

EP4364814A1 AQUEOUS MICROCAPSULE DISPERSION 审中-实审
公开(公告)号：EP4364814A1
公开(公告)日：2024-05-08
申请号：EP22833247.4
申请日：2022-06-29
申请人： Kao Corporation
发明人： KOGA, Yoshito , FUKUZUMI, Keita , KAMEYAMA, Yutaka , KONO, Hironori
IPC分类号： A61Q1/00 , A61Q19/00 , A61K8/11 , A61K8/25 , A61K8/44 , B01J13/14
CPC分类号： A61K8/11 , A61K8/25 , A61K8/44 , A61Q1/00 , A61Q19/00 , B01J13/14
摘要： The present invention relates to an aqueous microcapsule dispersion liquid containing a component (A) and a component (B) below, a method of producing an aqueous microcapsule dispersion liquid, and a method of stabilizing an aqueous microcapsule dispersion liquid: component (A): microcapsules having a shell containing an inorganic material as a constitutional component, and a core containing one or more kind of an organic compound, inside the shell, and component (B): one or more kind selected from the group consisting of an amino acid (B1), a polyhydroxyamine (B2), and a quaternary ammonium hydroxide (B3).

5. 发明公开

EP4268949A1 MICROCAPSULE 审中-实审
公开(公告)号：EP4268949A1
公开(公告)日：2023-11-01
申请号：EP20968028.9
申请日：2020-12-28
申请人： Kao Corporation
发明人： KOGA, Yoshito , YAMAZAKI, Daisuke , SAWADA, Risa , FUKUZUMI, Keita
IPC分类号： B01J13/14
摘要： The present invention relates to [1] a microcapsule having a shell containing an inorganic substance as a constituent component and a core containing one or more organic compounds inside the shell, in which the organic compounds contain the following component (A) and component (B1), and [2] a method for producing a microcapsule, including a step of emulsifying an oil-water mixture containing an oil phase component containing the following component (A), component (B1) and component (C) and an aqueous phase component, and subjecting the mixture to a sol-gel reaction to form the microcapsule. Component (A): a functional oil agent. Component (B1): one or more selected from the group consisting of a higher aliphatic alcohol having 6 or more carbon atoms, a higher fatty acid having 6 or more carbon atoms, a monoalkyl glyceryl ether having an alkyl group having 6 or more carbon atoms, and an amide compound having an alkyl group having 8 or more carbon atoms (provided that the component (A) is excluded). Component (C): a shell precursor.

6. 发明公开

EP4082656A1 METHOD FOR PRODUCING MICROCAPSULE 审中-实审
公开(公告)号：EP4082656A1
公开(公告)日：2022-11-02
申请号：EP20905473.3
申请日：2020-12-28
申请人： Kao Corporation
发明人： KOGA, Yoshito
IPC分类号： B01J13/14 , C11B9/00
摘要： The present invention relates to a method of producing a microcapsule that includes a shell containing silica as a constituent component and a core containing at least one organic compound inside the shell. The production method of the microcapsule includes:
step 1: obtaining a water dispersion of a silica microcapsule (1) containing an organic compound, and
step 2: adding an anionic surfactant to the water dispersion obtained in the step 1, and then performing a sol-gel reaction in the presence of a silica source to form a microcapsule having a shell that encloses the silica microcapsule (1).

7. 发明公开

EP4082624A1 METHOD FOR PREPARING MICROCAPSULE 有权
公开(公告)号：EP4082624A1
公开(公告)日：2022-11-02
申请号：EP20907521.7
申请日：2020-12-28
申请人： Kao Corporation
发明人： YAMAZAKI, Daisuke , MOROFUJI, Tatsuya , MISHIRO, Asami , SAWADA, Risa , KOGA, Yoshito
IPC分类号： A61Q13/00 , A61Q15/00 , A61Q19/10 , C11D3/50 , A61K8/11 , A61K8/41 , A61K8/58 , B01J13/14 , C11B9/00
摘要： The invention relates to a method for producing microcapsules each having a shell and a core that contains an organic compound inside the shell, which includes: Step 1: a step of emulsifying an aqueous phase component containing an emulsifier and an oily phase component containing an organic compound and a tetraalkoxysilane to give an emulsified liquid, Step 2: a step of subjecting the emulsified liquid prepared in the step 1 to a sol-gel reaction under an acidic condition to prepare an aqueous dispersion containing silica capsules (1) each having a core and a first shell, and Step 3: a step of further adding a tetraalkoxysilane to the aqueous dispersion containing the silica capsules (1) formed in the step 2, and subjecting the obtained mixture to sol-gel reaction to form microcapsules each having a second shell that encapsulates the first shell, and wherein the emulsifier used in the step 1 contains a cationic surfactant, and the content of the emulsifier in the aqueous phase component in the step 1 is 0.30% by mass or less.

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