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公开(公告)号：US20220348753A1
公开(公告)日：2022-11-03
申请号：US17763905
申请日：2020-09-25
发明人： Mayu Esaka , Yusuke Hemmi
IPC分类号： C08L23/16
摘要： A rubber composition includes an elastomer component, a polyvinyl pyrrolidone-based resin, and a non-water-absorbent short fiber, and includes substantially no water-absorbent fiber. The elastomer component may include an ethylene-α-olefin elastomer. The polyvinyl pyrrolidone-based resin may have a K value of 10 to 100. The non-water-absorbent short fiber may include an aliphatic polyamide short fiber.
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公开(公告)号：US20240360888A1
公开(公告)日：2024-10-31
申请号：US18292154
申请日：2022-07-22
发明人： Susumu Osaki , Yusuke Hemmi , Takumi Mizumoto
IPC分类号： F16G1/28 , B32B3/08 , B32B3/28 , B32B5/02 , B32B25/02 , B32B25/04 , B32B25/10 , B32B25/14 , C08L15/00
CPC分类号： F16G1/28 , B32B3/08 , B32B3/28 , B32B5/024 , B32B25/02 , B32B25/042 , B32B25/10 , B32B25/14 , C08L15/005 , B32B2262/0253 , B32B2262/0261 , B32B2262/0269 , B32B2262/0276 , B32B2262/0292 , B32B2262/106 , B32B2262/148 , B32B2264/1021 , B32B2264/1025 , B32B2264/104 , B32B2264/108 , B32B2307/536 , B32B2307/54 , B32B2307/737 , B32B2413/00 , B32B2433/04 , C08L2312/00
摘要： The disclosure relates to a toothed belt including: a back portion in which a tension member is embedded; a plurality of tooth portions formed on an inner circumferential surface of the back portion; a back rubber layer formed on a belt outer circumference side with respect to the tension member; and a first rubber layer and a second rubber layer formed on a belt inner circumferential side with respect to the tension member, in which an inner circumferential belt surface is formed of a tooth fabric, the back portion includes the back rubber layer, an elastic modulus of the first rubber layer is larger than an elastic modulus of the second rubber layer, and the tooth portion includes the tooth fabric, the first rubber layer formed along the tooth fabric, and the second rubber layer interposed between the first rubber layer and the tension member.
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公开(公告)号：US11982336B2
公开(公告)日：2024-05-14
申请号：US17763929
申请日：2020-09-25
发明人： Mayu Esaka , Yusuke Hemmi , Eyobashenafi Tessema
摘要： A frictional power transmission belt includes a compression rubber layer that includes a frictional power transmission surface at least a part of which can come into contact with a pulley and that is formed of a cured product of a rubber composition. On a surface of the frictional power transmission surface, a surface layer comprising a cured product of a rubber composition containing a polyvinyl pyrrolidone-based resin and an elastomer component is laminated.
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公开(公告)号：US20240077131A1
公开(公告)日：2024-03-07
申请号：US18273499
申请日：2022-01-21
发明人： Susumu Osaki , Yusuke Hemmi
摘要： A toothed belt including a reinforcing layer with 0.05 mm to 0.2 mm thickness buried along a contour of tooth portions such that a maximum height from a bottom portion of the tooth portion to the reinforcing layer is in a range of 30% to 100% of a height from the bottom portion to a tooth tip, in which the reinforcing layer includes reinforcing fiber filaments arranged in a belt circumferential direction, in the reinforcing layer, a weight per unit area of fibers intersecting the belt circumferential direction is 30% or less of a weight per unit area of the reinforcing fiber filaments, the reinforcing layer has a structure where the reinforcing fiber filaments are arranged in the belt circumferential direction and bonded to form a sheet shape in an untwisted state, and a tensile modulus of the reinforcing fiber filament satisfies a specific condition.
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公开(公告)号：US20220325777A1
公开(公告)日：2022-10-13
申请号：US17763929
申请日：2020-09-25
发明人： Mayu Esaka , Yusuke Hemmi , Eyobashenafi Tessema
摘要： A frictional power transmission belt includes a compression rubber layer that includes a frictional power transmission surface at least a part of which can come into contact with a pulley and that is formed of a cured product of a rubber composition. On a surface of the frictional power transmission surface, a surface layer comprising a cured product of a rubber composition containing a polyvinyl pyrrolidone-based resin and an elastomer component is laminated.
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