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公开(公告)号：US11858049B2
公开(公告)日：2024-01-02
申请号：US17792711
申请日：2022-01-19
发明人： Yasuki Kido , Katsumi Okamura , Chiaki Tokuda
CPC分类号： B23B27/14 , C22C29/005 , C22C29/02 , B23B2224/28
摘要： A cemented carbide composed of a first hard phase, a second hard phase and a binder phase, in which the first hard phase is composed of tungsten carbide particles, the second hard phase is composed of at least one first compound selected from the group consisting of TiNbC, TiNbN and TiNbCN, the second hard phase has an average particle diameter of no more than 0.1 μm, the second hard phase has a dispersity of no more than 0.7, the second hard phase has a content of no less than 0.1 vol % and no more than 15 vol %, the binder phase contains at least one first element selected from the group consisting of iron, cobalt and nickel, and the binder phase has a content of no less than 0.1 vol % and no more than 20 vol %.
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公开(公告)号：US11919804B2
公开(公告)日：2024-03-05
申请号：US17271472
申请日：2020-06-10
IPC分类号： C03C25/1065 , C03C25/285 , C03C25/32 , C09D151/08 , G02B6/02 , C08K3/36
CPC分类号： C03C25/1065 , C03C25/285 , C03C25/32 , C09D151/08 , G02B6/02395 , C08K3/36
摘要： The resin composition according to an aspect of the present disclosure is a resin composition containing a photopolymerizable compound comprising urethane (meth)acrylate and a polyrotaxane, and a photopolymerization initiator, and the content of the polyrotaxane is 0.05% by mass or more and 11% by mass or less based on the total amount of the photopolymerizable compound.
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公开(公告)号：US11579358B2
公开(公告)日：2023-02-14
申请号：US17277793
申请日：2020-06-10
IPC分类号： G02B6/02 , C03C25/105 , C03C25/1065
摘要： An optical fiber comprises a glass fiber comprising a core and a cladding, and a coating resin layer, wherein the coating resin layer has a primary resin layer being in contact with the glass fiber and coating the glass fiber, and a secondary resin layer coating the primary resin layer, and the primary resin layer and the secondary resin layer are resin layers containing inorganic oxide particles.
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公开(公告)号：US12025829B2
公开(公告)日：2024-07-02
申请号：US17295914
申请日：2020-06-08
发明人： Chiaki Tokuda , Katsushi Hamakubo
IPC分类号： G02B6/02 , C03C25/1065 , C03C25/285 , C03C13/04 , C03C25/105 , C03C25/326 , C08F220/32 , C08F220/36 , C08K3/36 , C09D4/00 , C09D7/61 , C09D133/14
CPC分类号： G02B6/02395 , C03C25/1065 , C03C25/285 , C03C13/04 , C03C25/105 , C03C25/326 , C03C2213/00 , C08F220/325 , C08F220/36 , C08F2800/20 , C08K3/36 , C09D4/00 , C09D7/61 , C09D133/14
摘要： A resin composition for coating an optical fiber comprises: a base resin containing a photopolymerizable compound and a photopolymerization initiator; and hydrophobic inorganic oxide particles, wherein the photopolymerizable compound comprises urethane (meth)acrylate and aliphatic epoxy (meth)acrylate, and the content of the aliphatic epoxy (meth)acrylate is 1.0% by mass or more and 45% by mass or less based on the total amount of the photopolymerizable compound.
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公开(公告)号：US11820704B2
公开(公告)日：2023-11-21
申请号：US17278766
申请日：2020-06-04
IPC分类号： C03C25/10 , C03C25/1065 , C03C25/47 , C03C25/285 , C03C25/326 , C08G18/12 , C08G18/32 , C08G18/34 , C08G18/76 , C08K3/22 , C09D175/14 , G02B6/02
CPC分类号： C03C25/1065 , C03C25/285 , C03C25/326 , C03C25/47 , C08G18/12 , C08G18/3206 , C08G18/341 , C08G18/348 , C08G18/7621 , C08K3/22 , C09D175/14 , G02B6/02395 , C08K2003/2227
摘要： The present disclosure relates to a resin composition for coating an optical fiber, the resin composition including: a base resin that contains an oligomer, a monomer, and a photopolymerization initiator; and inorganic oxide particles, in which the inorganic oxide particles include a plurality of particle groups having different volume average particle sizes, and the volume average particle size is measured by small-angle X-ray scattering.
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公开(公告)号：US11472735B2
公开(公告)日：2022-10-18
申请号：US17257980
申请日：2020-04-30
IPC分类号： C03C25/47 , C03C25/105 , C03C25/1065 , G02B6/02
摘要： An optical fiber comprises a glass fiber comprising a core and a cladding, and a coating resin layer covering the outer periphery of the glass fiber, wherein the coating resin layer has a primary resin layer being in contact with the glass fiber and covering the glass fiber and a secondary resin layer covering the outer periphery of the primary resin layer, the secondary resin layer comprises hydrophobic spherical silica particles, and the content of the silica particles is 7% by mass or more and 60% by mass or less based on the total amount of the secondary resin layer, and the absolute value of the surface potential of the optical fiber is 10 mV or more and 60 mV or less.
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