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公开(公告)号：US20220349455A1
公开(公告)日：2022-11-03
申请号：US17717482
申请日：2022-04-11
发明人： Yuya SHINDO , Shogo KOBAYASHI
摘要： A friction transmission belt includes a belt body which transmits power to a pulley. In a relationship between a friction coefficient and a slipping speed which is a difference between a speed of the belt body and a speed of the pulley, when a slipping speed at which a maximum friction coefficient is indicated is defined as a first slipping speed, a friction coefficient when the slipping speed is increased from the first slipping speed to a second slipping speed is defined as a reference friction coefficient, and a difference between the second slipping speed and the first slipping speed is 500 mm/s, a decrease rate Dm of the friction coefficient indicated by the following equation (1) with the maximum friction coefficient being denoted by μx and the reference friction coefficient being denoted by μr is not greater than 20%. Dm=(μx−μr)/μx×100 (1)
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公开(公告)号：US11441011B2
公开(公告)日：2022-09-13
申请号：US16074335
申请日：2017-01-31
发明人： Fumihiro Mukai , Kotaro Yamaura , Hiroki Naito , Yasuhiro Sako
IPC分类号： C08K3/38 , C08K3/22 , H01L23/373 , H01L33/64
摘要： Provided is a thermally conductive molded resin article that can be inexpensively mass-produced and that exhibits a low thermal resistance value as a result of reducing internal thermal resistance by high filling and reducing interfacial thermal resistance by improving cutting precision. The thermally conductive molded resin article is characterized by comprising a resin and thermally conductive fillers including a first thermally conductive filler and a second thermally conductive filler having a smaller particle size than the first thermally conductive filler. The thermally conductive molded resin article is also characterized in that: the first thermally conductive filler has an aspect ratio of 10 or more and is oriented approximately in the thickness direction of the thermally conductive molded resin article; the resin is a silicone resin, an acrylic rubber, or a fluororubber; and the second thermally conductive filler has a thermal conductivity surpassing 5 W/mK.
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公开(公告)号：US20220229391A1
公开(公告)日：2022-07-21
申请号：US17614549
申请日：2019-05-31
发明人： Ken HIROTOMI
摘要： The present invention addresses the issue of providing a cleaning blade having excellent durability. An elastic body for blades is provided that has an abutting section that comprises a heat-curable polyurethane urea that is a reaction product of at least a polyol, a polyisocyanate, and a curing agent including a diaminobenzoic acid ester indicated by general formula (1).
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公开(公告)号：US20220090648A1
公开(公告)日：2022-03-24
申请号：US17543497
申请日：2021-12-06
发明人： Ikuhito DOI , Shogo KOBAYASHI , Yoshihito NAKAHIRA
摘要： A large V-belt includes an endless rubber belt body including an adhesive rubber layer and a cord embedded in the adhesive rubber layer of the belt body. The large V-belt has a belt thickness of 15 mm or more and the belt width of 10 mm or more at the center, in a belt thickness direction, of a cord embedded position. The belt body further includes reinforced rubber layers made of a rubber composition having a type A durometer hardness of 92 or more, the reinforced rubber layers being stacked on a belt inner side and/or a belt outer side of the adhesive rubber layer in the belt thickness direction.
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公开(公告)号：US11141963B2
公开(公告)日：2021-10-12
申请号：US16327316
申请日：2017-08-22
发明人： Yutaka Kamada , Arata Tani , Toshihiko Horie , Soh Kato
IPC分类号： B32B27/08 , B32B27/40 , C08J5/18 , C08G18/44 , G06F3/041 , C08G18/24 , C08G18/32 , C08G18/66 , C08G18/75 , C09D175/06 , B32B7/02 , B32B27/36 , G02B5/30 , C08J7/043 , C08J7/046 , B32B7/027 , B32B7/022 , B32B7/023
摘要： The present invention addresses the problem of providing a surface protective film which is resistant to discoloration, expansion and the like caused by the penetration of a plasticizer. A surface protective film having, on the outermost surface thereof, a protective layer made of polycarbonate type polyurethane is provided as the solution of the problem.
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公开(公告)号：US11027398B2
公开(公告)日：2021-06-08
申请号：US15737755
申请日：2016-05-24
发明人： Kazuo Saito , Kenji Shimoyama , Tomoki Iwanaga , Toshikazu Taura
IPC分类号： B24D3/02 , B24D11/00 , B24D3/00 , C09K3/14 , B24D3/34 , B24D3/04 , B24D13/14 , B24D11/02 , B24D3/14 , B24D18/00 , C09C1/68
摘要： The purpose of the present invention is to provide a grinding material which has a superior grinding rate and planarizing accuracy, with the grinding rate being less likely to be reduced over a relatively long period of time. The present invention is directed to a grinding material including a base, a grinding layer overlaid on a front face side of the base and including grinding grains and a binder for the grinding grains, and an adhesion layer overlaid on a back face side of the base, in which the grinding grains are diamond grinding grains, a wear quantity of the grinding layer as determined by a Taber abrasion test is no less than 0.03 g and no greater than 0.18 g, and, an Asker D hardness measured from a front face side of the grinding layer is no less than 80° and no greater than 98°.
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公开(公告)号：US10988614B2
公开(公告)日：2021-04-27
申请号：US15576509
申请日：2016-05-13
发明人： Mitsuru Yamada
IPC分类号： C08L75/04 , C08K5/11 , F16G1/28 , C08G18/10 , F16G1/08 , C08G18/66 , C08G18/48 , C08L75/08 , C09D175/08 , C08G18/76 , C08G18/78 , C08G18/32 , C08K5/053 , F16G1/14
摘要： An object is to provide a polyurethane elastomer excellent in strength and surface smoothness. To attain the object, a urethane composition including a certain prepolymer, a plasticizer and a crosslinking agent is provided.
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公开(公告)号：US10941325B2
公开(公告)日：2021-03-09
申请号：US16561092
申请日：2019-09-05
发明人： Hiroki Naito , Masaya Miyake , Fumihiro Mukai
IPC分类号： C09K5/14 , H05K7/20 , H01L23/373 , F28F21/06 , H01L23/42
摘要： A thermally conductive resin molded article having a resin and a thermally conductive filler is provided. The thermally conductive filler is oriented substantially in the thickness direction of the thermally conductive resin molded article. The volumetric filling factor of the thermally conductive filler in the thermally conductive resin molded article is 20-80% by volume. Weld lines in the resin are formed substantially in the thickness direction of the thermally conductive resin molded article. An oil component is included in the thermally conductive resin molded article.
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公开(公告)号：US20210002466A1
公开(公告)日：2021-01-07
申请号：US17027589
申请日：2020-09-21
发明人： Takayuki OKUBO , Masashi KITATSUJI , Takuya MORI , Taiichi OKADA
摘要： A crosslinked rubber composition contains a rubber component and para-aramid short fibers having a filament fineness of 2.5 dtex or more and dispersed in the rubber component.
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公开(公告)号：US20210001612A1
公开(公告)日：2021-01-07
申请号：US16980418
申请日：2019-03-14
发明人： Yutaka KAMADA , Kazumi SAKANO
IPC分类号： B32B27/26 , B32B27/24 , B32B27/20 , B32B27/40 , B32B7/12 , C09D175/06 , C08G18/73 , C08G18/76 , C08G18/32 , B32B7/06
摘要： The present invention addresses the problem of providing a surface protection film having superior oil resistance. Provided is a surface protection film having a coating layer obtained by curing an isocyanate compound, on one surface of a protection layer formed of a polyurethane.
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