公开(公告)号：US20230192432A1

公开(公告)日：2023-06-22

申请号：US17866556

申请日：2022-07-18

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： MASASHI HAMAKUBO ,  RYOSUKE FUJII ,  SATOSHI ITO

IPC: B65H27/00

CPC classification number: B65H27/00 ,  B65H2404/19

Abstract: A sheet transport roller having a high friction coefficient and a rubber composition for forming a roller main body thereof. The rubber composition of the present disclosure, which is a rubber composition for forming the roller main body of the sheet transport roller, contains a rubber component containing an ethylene-α-olefin copolymer and a rosin component.

公开(公告)号：US20230193008A1

公开(公告)日：2023-06-22

申请号：US17888492

申请日：2022-08-16

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： RYOSUKE FUJII ,  MASASHI HAMAKUBO

IPC: C08L23/16 ,  C08J3/00 ,  C08J3/24 ,  B65H27/00

CPC classification number: C08L23/16 ,  B65H27/00 ,  C08J3/005 ,  C08J3/247 ,  B65H2404/10 ,  C08J2323/16 ,  C08J2445/02 ,  C08L2312/00

Abstract: A rubber composition capable of manufacturing a sheet transport roller having an excellent friction coefficient and wear resistance. A sheet transport roller rubber composition contains an ethylene-α-olefin-diene copolymer as a base rubber, a sulfur-based crosslinking agent, and a coumarone-indene resin. It is preferable that the sheet transport roller rubber composition be obtained by mixing the base rubber and the coumarone-indene resin at a temperature equal to or higher than a softening point of the coumarone-indene resin to prepare a mixture, and then mixing this mixture with a sulfur-based crosslinking agent.