公开(公告)号：US11933383B2

公开(公告)日：2024-03-19

申请号：US17611629

申请日：2020-05-15

Applicant: Mitsuboshi Belting Ltd.

Inventor： Yosuke Sueto ,  Takuya Tomoda ,  Mayu Esaka

IPC: F16G1/28 ,  B29C53/14 ,  B29K105/10 ,  B29L31/00

CPC classification number: F16G1/28 ,  B29C53/14 ,  B29K2105/103 ,  B29K2995/0094 ,  B29L2031/7094

Abstract: The present invention relates to a twisted cord for constituting a core wire of a power-transmission belt, the twisted cord including a plurality of primary twisted yarns that are bundled and secondarily-twisted, in which when secondary twist is untwisted by 25 cm, a difference in length between the longest primary twisted yarn L and the shortest primary twisted yarn S among the plurality of primary twisted yarns is 1 to 10 mm.

公开(公告)号：US20220348753A1

公开(公告)日：2022-11-03

申请号：US17763905

申请日：2020-09-25

Applicant: Mitsuboshi Belting Ltd.

Inventor： Mayu Esaka ,  Yusuke Hemmi

IPC: C08L23/16

Abstract: 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.

公开(公告)号：US20220243785A1

公开(公告)日：2022-08-04

申请号：US17611629

申请日：2020-05-15

Applicant: Mitsuboshi Belting Ltd.

Inventor： Yosuke Sueto ,  Takuya Tomoda ,  Mayu Esaka

IPC: F16G1/28 ,  B29C53/14

Abstract: The present invention relates to a twisted cord for constituting a core wire of a power-transmission belt, the twisted cord including a plurality of primary twisted yarns that are bundled and secondarily-twisted, in which when secondary twist is untwisted by 25 cm, a difference in length between the longest primary twisted yarn L and the shortest primary twisted yarn S among the plurality of primary twisted yarns is 1 to 10 mm.

公开(公告)号：US11982336B2

公开(公告)日：2024-05-14

申请号：US17763929

申请日：2020-09-25

Applicant: Mitsuboshi Belting Ltd.

Inventor： Mayu Esaka ,  Yusuke Hemmi ,  Eyobashenafi Tessema

IPC: F16G5/08 ,  F16G5/20

CPC classification number: F16G5/08 ,  F16G5/20

Abstract: 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.

公开(公告)号：US20220325777A1

公开(公告)日：2022-10-13

申请号：US17763929

申请日：2020-09-25

Applicant: Mitsuboshi Belting Ltd.

Inventor： Mayu Esaka ,  Yusuke Hemmi ,  Eyobashenafi Tessema

IPC: F16G5/08 ,  F16G5/20

Abstract: 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.