公开(公告)号：US20230305197A1

公开(公告)日：2023-09-28

申请号：US18023579

申请日：2021-08-30

Applicant: SOMAR CORPORATION

Inventor： Naoki SAKAZUME

IPC: G02B5/00

CPC classification number: G02B5/003

Abstract: A light shielding component with low gloss and high optical concentration independent of the film thickness of the light shielding layer is provided. The light shielding component includes a substrate film; and a light shielding layer formed on at least one surface of the substrate film. The maximum height Rz measured according to JIS B0601:2001 of the surface forming the light shielding layer is set to 1 μm or more and 5 μm or less, and the average length Rsm of the contour curve elements is set to 40 μm or less. Preferably, the light shielding layer includes a particle group with a particle size of 2 μm˜6 μm and a particle group with a particle size of 0.06 μm˜0.4 μm.

公开(公告)号：US11614571B2

公开(公告)日：2023-03-28

申请号：US17789507

申请日：2020-12-25

Applicant: SOMAR CORPORATION

Inventor： Hinoki Sakamura ,  Naoki Sakazume

IPC: C23C14/08 ,  G02B1/11 ,  G02B5/00 ,  G02B5/22

Abstract: Provided is a black light-shielding member, which has an excellent effect of anti-reflection that based on low glossiness and has a high blackness. A black light-shielding member including a substrate film, a resin-made light-shielding layer having a concave-convex shape formed on at least one surface of the substrate film, and a blackened layer formed on the resin-made light-shielding layer is produced. By adjusting an arithmetic mean surface roughness Ra of the surface on which the light-shielding layer and the blackened layer are formed to be 0.25 μm or more, and the maximum thickness of the blackened layer is less than the said Ra, a blackness with an L value of 12 or less is achieved.

公开(公告)号：US20220348798A1

公开(公告)日：2022-11-03

申请号：US17764161

申请日：2020-09-25

Applicant: SOMAR CORPORATION

Inventor： Ryusuke SHIMAGUCHI

IPC: C09J7/38 ,  C09J7/10 ,  C09J11/08

Abstract: The present invention provides a UV curable resin composition that can be cured without going through a high-temperature heating process and has excellent adhesiveness, and a sheet using the same.
The UV curable resin composition comprises a rubber component with a diene skeleton, a photopolymerization initiator, a crosslinker and a tackifier. The composition contains a solid rubber component and a liquid rubber component at 25° C. as the rubber component with the diene. Since the UV curable composition can be cured by UV irradiation in a short time, it can be applied not only to adherends with high heat resistance but also to various parts.

公开(公告)号：US20210327622A1

公开(公告)日：2021-10-21

申请号：US17228896

申请日：2021-04-13

Applicant: SOMAR CORPORATION

Inventor： Hirohisa Ishizaki ,  Akira Ochiai

IPC: H01F1/44 ,  H01F1/28

Abstract: There is provided a magnetic responsiveness composite material capable of increasing viscosity by applying a magnetic field when compounded together with a liquid in a composition. The magnetic responsive composite material comprises first particles as core particles composed of a nonmagnetic inorganic material and second particles composed of a magnetic material adhering to at least a part of surfaces of the first particles. A lipophilic treatment agent is applied to at least a part of surfaces of the second particles. The second particles satisfy a relationship of having a smaller average particle diameter than that of the first particles. A lipophilic treatment agent is preferably at least one kind selected from coupling agents and surfactants.

公开(公告)号：US20190309143A1

公开(公告)日：2019-10-10

申请号：US16463401

申请日：2017-11-27

Applicant: SOMAR CORPORATION

Inventor： Hirohisa ISHIZAKI ,  Akira OCHIAI

IPC: C08K3/22 ,  C08K9/04 ,  B29C35/02 ,  C08J3/09

Abstract: A resin composition including: a magnetic fluid that includes magnetic particles, a dispersant, and a dispersion medium; and a resin or precursor thereof that includes, in a molecule thereof, at least one partial structure selected from the group consisting of a diene skeleton, a silicone skeleton, a urethane skeleton, a 4- to 7-membered ring lactone skeleton, an alkyl group having from 6 to 30 carbon atoms and an alkylene group having from 6 to 30 carbon atoms, a production method thereof, a resin composition molded body obtained by using the resin composition, and a production method thereof.

公开(公告)号：US10407575B2

公开(公告)日：2019-09-10

申请号：US15698809

申请日：2017-09-08

Applicant: SOMAR CORPORATION

Inventor： Masaaki Toyoda

IPC: C09D163/02 ,  C09D5/03 ,  C08G59/24 ,  C09D163/00 ,  C09D7/61 ,  C09D7/65 ,  C09D7/40 ,  C08L51/00

Abstract: An epoxy resin powder coating material is provided, by which, while workability and coating property are not deteriorated, a coating film having excellent heat cycle resistance can be formed also on recent metal parts having a configuration of intricately combining a plurality of different kinds of metals of different material qualities and required to have high-standard performance. The epoxy resin powder coating material is manufactured by blending a spherical inorganic particle and acryl-based core shell type particle having an average particle diameter of 16 to 50 μm in a bisphenol A-type epoxy resin, wherein an average particle diameter of the acryl-based core shell type particle is preferably 0.1 to 0.4 μm.

公开(公告)号：US10189949B2

公开(公告)日：2019-01-29

申请号：US14903506

申请日：2014-07-07

Applicant: SOMAR CORPORATION

Inventor： Yoshiyasu Takiue

IPC: C08L77/00 ,  C08G73/10 ,  C09D179/08

Abstract: Provided are: a transparent polyimide copolymer which satisfies solvent solubility, storage stability, heat resistance, mechanical strength and thermal yellowing resistance at high levels and has excellent utility; a polyimide resin composition; a molded article; and a production method of the copolymer. The transparent polyimide copolymer is obtained by copolymerizing: (A) 4,4′-oxydiphthalic dianhydride and/or 2,2-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride; and (B) at least one diamine and/or diisocyanate represented by the following Formulae (1) to (3): (wherein, X represents an amino group or an isocyanate group; R1 to R8 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkenyl group having 2 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and at least one of the R1 to R8 is not a hydrogen atom).

公开(公告)号：US20180099445A1

公开(公告)日：2018-04-12

申请号：US15568403

申请日：2016-04-18

Applicant: SOMAR CORPORATION

Inventor： Hirohisa ISHIZAKI ,  Akira OCHIAI

IPC: B29C45/78 ,  B29C45/72 ,  C08K3/013

CPC classification number: B29C45/78 ,  B29C45/7207 ,  B29C2045/0058 ,  B29C2045/1833 ,  B29C2793/009 ,  B29K2101/10 ,  C08K3/013 ,  C08K3/36 ,  C08K3/40 ,  C08K2003/2227 ,  C08K2003/2237 ,  C08K2003/265 ,  C08K2201/01 ,  C08L63/00

Abstract: The present invention is a method that enables continuous injection molding of a thermosetting resin composition and reuse of an unnecessary part produced during the molding. The method includes injecting a thermosetting resin composition into a mold while a curing reaction of the resin composition is incomplete. The thermosetting resin composition is then cooled in the mold until becoming semi-cured and removed as a semi-cured product from the mold. The semi-cured product is separated from the unnecessary part and separately heated to progress a thermosetting reaction of the thermosetting resin composition. The unnecessary part may be used as a reworked raw material by regrinding the unnecessary part and mixing it with a fresh thermosetting resin composition. Then, a resultant mixture is used to perform a new injection molding.

公开(公告)号：US20180023057A1

公开(公告)日：2018-01-25

申请号：US15547316

申请日：2016-01-27

Applicant: THE UNIVERSITY OF TOKYO ,  SOMAR CORPORATION

Inventor： Yasuyuki SAKAI ,  Ikki HORIGUCHI ,  Kumiko MATSUNAGA ,  Shunji HAYASAKA

IPC: C12N5/074 ,  C07K14/705

CPC classification number: C12N5/0696 ,  C07K2/00 ,  C07K14/70596 ,  C07K14/78 ,  C07K16/18 ,  C07K19/00 ,  C07K2319/30 ,  C12N5/10 ,  C12N2501/599

Abstract: A method for culturing cells by which the diameter of cell aggregates can be controlled, and by which a large amount of cells can be obtained, a cell aggregate obtained by the method, a cell aggregation control agent, and a medium containing the cell aggregation control agent, are provided. A method for culturing cells by suspension culture, which method includes an aggregation control step of adding a substance that inhibits a cell adhesion molecule(s) of the cells to a medium to control cell aggregation of the cells, and the like are provided.

公开(公告)号：US20160083521A1

公开(公告)日：2016-03-24

申请号：US14785273

申请日：2014-04-17

Applicant: SOMAR CORPORATION

Inventor： Yoshiyasu TAKIUE

IPC: C08G73/10

CPC classification number: C08G73/1085 ,  C08G73/1042 ,  C08G73/105 ,  C08G73/1064 ,  C08G73/1067 ,  C08G73/1071 ,  C09D179/08

Abstract: The present invention provides: a polyimide copolymer which satisfies solvent solubility, storage stability and heat resistance at high levels and has excellent utility; and a method of producing the same. The polyimide copolymer is obtained by copolymerizing an oligomer of polyimide copolymer, which is obtained by copolymerizing (A) a pyromellitic dianhydride and (B) at least one diamine and/or diisocyanate represented by the following Formula (1) or (2): (wherein, X represents an amino group or an isocyanate group; R1 to R4 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkenyl group having 2 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and at least one of the R1 to R4 is not a hydrogen atom), with (C) second acid dianhydride different from the (A).

Abstract translation: 本发明提供了一种满足溶剂溶解性，保存稳定性和耐热性高，效果好的聚酰亚胺共聚物。 及其制造方法。 聚酰亚胺共聚物通过共聚（A）1,2,4,5-苯四酸二酐与（B）至少一种由下式（1）或（2）表示的二胺和/或二异氰酸酯得到的聚酰亚胺共聚物的低聚物而获得：（ 其中，X表示氨基或异氰酸酯基; R 1〜R 4各自独立地表示氢原子，碳原子数1〜4的烷基，碳原子数2〜4的烯基或碳原子数为1〜4的烷氧基 原子;且R 1至R 4中的至少一个不是氢原子），与（C）不同于（A）的第二酸二酐。