公开(公告)号：US20170203553A1

公开(公告)日：2017-07-20

申请号：US15324571

申请日：2015-08-07

Applicant: I.S.T CORPORATION

Inventor： Kazuki TSUJIKAWA ,  Masaaki KASHIWA

IPC: B32B27/18 ,  G03G15/20 ,  B32B27/34

CPC classification number: B32B27/18 ,  B32B27/34 ,  C10M107/38 ,  C10M2213/0623 ,  C10N2220/082 ,  C10N2230/06 ,  C10N2250/18 ,  G03G15/2053 ,  G03G2215/2035

Abstract: A problem addressed by the present invention is to provide a low-friction member which does not easily lose low-friction properties thereof even when used for a relatively long period. The low-friction member LS according to the present invention is consisting of at least lubricating materials PL, PS and a polyimide resin MR. The low-friction member has a surface roughness Rsk or 0.500 or more and the surface exposure ratio of the lubricating materials of 15.0% or more. It is particularly preferred that the surface roughness Rsk be in a range of 0.0900 (inclusive) to 0.1400 (inclusive), and the surface exposure ratio of the lubricating materials be 35.0% or more. It is preferred that the lubricating materials be a fluororesin. The low-friction member thus has the property of not losing the low-friction properties thereof easily even when used for a relatively long period.