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公开(公告)号：US20250009941A1
公开(公告)日：2025-01-09
申请号：US18713511
申请日：2022-11-29
Inventor： Takuma NISHIMURA , Yudai SHIOJI , Shichidai TANABE , Masahito NISHIURA , Shingo KOBAYASHI , Masaru TANAKA
Abstract: Provided is a medical device containing a polyurethane resin elastomer that can achieve both biocompatibility and physical properties. The medical device in an embodiment contains a polyurethane resin elastomer and water contained in the polyurethane resin elastomer. The polyurethane resin elastomer contains polyethylene glycol and a polyisocyanate as constituents, the polyethylene glycol has a number average molecular weight of 200 or more and 2200 or less, and the polyethylene glycol is present in an amount of 1 mass % or higher and lower than 50 mass % based on 100 mass % of the constituents of the polyurethane resin elastomer.
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公开(公告)号：US20240101807A1
公开(公告)日：2024-03-28
申请号：US18274886
申请日：2022-01-14
Applicant: DKS Co. Ltd.
Inventor： Ken MORISHITA , Koichi AKIYAMA , Ginga HOSHI
CPC classification number: C08L25/06 , C08K5/06 , C08K5/098 , C08L2201/02 , C08L2203/14
Abstract: Provided are a flame retardant composition for expandable styrene resin that can be used to produce a foamed molded article having excellent flame retardancy and excellent heat resistance, a flame-retardant expandable styrene-based resin composition, and an extrusion-foamed molded article of the styrene-based resin compostion. The flame retardant composition for expandable styrene resin of the present invention comprises at least tetrabromobisphenol A-bis(2,3-dibromo-2-methylpropyl ether) as a component (B1), fatty acid zinc as a component (C), and a fatty acid metal salt, excluding the component (C), as a component (D), the component (C) being contained in an amount of 0.1 to 15 parts by mass based on 100 parts by mass of the component (B1), and the component (D) being contained in an amount of 1 to 35 parts by mass based on 100 parts by mass of the component (B1).
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公开(公告)号：US20240052088A1
公开(公告)日：2024-02-15
申请号：US18278493
申请日：2022-02-16
Applicant: DKS Co. Ltd.
Inventor： Kazuhito TAKADA , Azusa KANAI
CPC classification number: C08G18/698 , C08G18/7685
Abstract: Provided is a two-component-curable polyurethane resin composition that has high compatibility, high adhesion, and a good low-dielectric-constant characteristic.
A two-component-curable polyurethane resin composition according to an embodiment includes a first component including a polyol and a terpene resin, and a second component including a polyisocyanate, wherein the polyol includes 30 mass % or more of a polybutadiene polyol and/or a hydrogenated polybutadiene polyol, and a content of the terpene resin relative to 100 parts by mass of the polyol is 1 to 60 parts by mass.-
公开(公告)号：US20240047742A1
公开(公告)日：2024-02-08
申请号：US18268093
申请日：2021-12-20
Applicant: DKS CO. LTD.
Inventor： Junshi OKUHARA , Fumiya KANEKO
IPC: H01M10/0565 , H01M10/052 , H01G11/56
CPC classification number: H01M10/0565 , H01M10/052 , H01G11/56 , H01M2300/0082 , H01G11/06
Abstract: Techniques relating to an electrolyte having high ion conductivity and high strength are provided. The electrolyte includes an ionic liquid, an inorganic oxide, and a binder, wherein the binder is formed from raw materials that are a polycarbonate polyol and a polyisocyanate, and the binder includes, at an end, at least one functional group selected from the group consisting of a trialkoxysilyl group having 1 to 4 carbon atoms, an epoxy group, and an oxetanyl group.
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公开(公告)号：US20230207889A1
公开(公告)日：2023-06-29
申请号：US17913237
申请日：2021-03-09
Applicant: DKS CO. LTD.
Inventor： Yuji HOSHIHARA , Akiyoshi NISHIKAWA , Tetsuya HIGASHIZAKI , Soki KAJI
IPC: H01M10/39 , H01M10/0525
CPC classification number: H01M10/399 , H01M10/0525 , H01M2300/0048
Abstract: Provided is a technique with high strength, superior ionic conductivity, and superior electrical characteristics.
A lithium ion secondary battery includes a positive electrode, a negative electrode, and a polymer electrolyte. The polymer electrolyte contains a lithium salt, an ionic liquid, and a polymer. The ionic liquid contains a bis(fluorosulfonyl)imide anion as an anion component. The content of the lithium salt is 2 mol/kg or more and 6 mol/kg or less based on the sum of the content of the ionic liquid and the content of the polymer. The content of the polymer is 25% by mass or more and 40% by mass or less based on the sum of the content of the ionic liquid and the content of the polymer.-
Patent Agency Ranking
公开(公告)号：US12244016B2
公开(公告)日：2025-03-04
申请号：US17604215
申请日：2020-03-05
Applicant: DKS Co. Ltd.
Inventor： Ayano Sofue , Toshiya Watanabe , Yasuteru Saito
IPC: H01M4/62 , C08G18/08 , C08G18/62 , C08G18/69 , H01G11/06 , H01G11/38 , B82Y30/00 , B82Y40/00 , H01M4/02 , H01M10/0525
Abstract: Provided are an electrode binder composition that provides an electrode that exhibits high durability even when an active material that shows a large volume change is used, an electrode coating liquid composition containing the electrode binder composition, a power storage device electrode including an electrode mixture layer containing a solid of the electrode coating liquid composition, and a power storage device including the power storage device electrode. An electrode binder composition includes (A) a polyurethane, (B) a fibrous nanocarbon material having an average fiber length of 0.5 μm or more, and (C) water. The polyurethane is obtained by reacting together (a) a polyisocyanate, (b) a polyol, (c) a compound having one or more active hydrogen groups and a hydrophilic group, and (d) a chain extender. (b) contains an olefinic polyol having 1.5 or more active hydrogen groups and/or a carbonate diol having less than 6 carbon atoms between carbonate bond chains.
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公开(公告)号：US20240117099A1
公开(公告)日：2024-04-11
申请号：US18273308
申请日：2022-01-31
Applicant: DKS Co. Ltd.
Inventor： Takuma NISHIMURA , Shinya MIZUKAMI
CPC classification number: C08G18/3234 , C08G18/0823 , C08G18/0866 , C08G18/12 , C08G18/3203 , C08G18/348 , C08G18/44 , C08G18/4833 , D06N3/146
Abstract: Provided is a technique that provides high durability and high flexibility at low temperatures.
A polyurethane resin composition is produced by chain-extending, using polyamine, a reaction product between a polyol including a polycarbonate polyol including a structural unit derived from 1,10-decanediol, a polyhydric alcohol including, as functional groups, three or more hydroxy groups alone and having a number-average molecular weight of 420 or more and 2000 or less, and a polyol including an anionic hydrophilic group, and polyisocyanate.-
8.发明公开公开(公告)号：US20230261196A1
公开(公告)日：2023-08-17
申请号：US18014685
申请日：2021-10-06
Applicant: DKS Co. Ltd.
Inventor： Masaaki MATSUMOTO , Akiyoshi NISHIKAWA , Koichi SAKAMOTO , Tetsuya HIGASHIZAKI
Abstract: A technique relating to a binder having high workability while retaining binding properties is provided.
An electrode binder composition includes an aqueous polyurethane resin dispersion in which a polyurethane resin is dispersed in water, a carbon nanotube, and a surfactant. The surfactant includes at least one selected from the group consisting of nonionic surfactants, silicon-based surfactants, and fluorine-based surfactants, and a content of the surfactant is 0.1 mass % or more and 20 mass % or less relative to a total amount of the polyurethane resin, the carbon nanotube, and the surfactant.-
公开(公告)号：US20230134720A1
公开(公告)日：2023-05-04
申请号：US17910566
申请日：2021-03-09
Applicant: DKS Co. Ltd.
Inventor： Akiyoshi NISHIKAWA , Tetsuya HIGASHIZAKI , Ayano SOFUE , Toshiya WATANABE , Fumiya KANEKO
Abstract: A technology which exhibits a low internal resistance and good output characteristics is provided.
An aqueous polyurethane resin dispersion for a secondary battery separator includes an aqueous polyurethane resin dispersion containing a polyurethane resin dispersed in water, the polyurethane resin being obtained by reacting a polyol, a polyisocyanate compound, and a chain extender. The polyol contains a polycarbonate polyol. The polyurethane resin has a crosslink density of 0.02 mol/kg or more and 0.28 mol/kg or less.-
公开(公告)号：US20230100493A1
公开(公告)日：2023-03-30
申请号：US17758586
申请日：2021-01-13
Applicant: DKS Co. Ltd.
Inventor： Takuma NISHIMURA , Masahito NISHIURA
IPC: C08G18/83 , C09D175/04 , A61L33/06 , C08J7/12
Abstract: Provided is a technology for exhibiting good ant ithrombogenicity.
A polyurethane or polyurethane urea has a graft chain having a specific structure. Two functional groups included in the specific structure are each an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an aralkyl group having 7 to 20 carbon atoms and may be the same or different from each other.
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