公开(公告)号：US20170130032A1

公开(公告)日：2017-05-11

申请号：US15128335

申请日：2015-03-20

Applicant: NOK Corporation

Inventor： Takafumi AIBA ,  Hideyuki MURAKAMI ,  Kenichi UCHIDA ,  Akira MORIO ,  Hiroaki SATO

IPC: C08K7/06 ,  F16H55/56 ,  F16J15/3284 ,  C08K3/04 ,  C08K7/10

CPC classification number: C08K7/06 ,  C08K3/04 ,  C08K7/10 ,  C08K2201/003 ,  C08K2201/006 ,  C08K2201/011 ,  C08L15/00 ,  F16H55/56 ,  F16J15/3284 ,  C08L15/005

Abstract: An object of the present invention is to provide an HNBR composition and an HNBR crosslinked body excellent in abrasion resistance and pressure resistance. The object is achieved by an HNBR composition containing 3 to 20 parts by weight of carbon fibers or wollastonite as a hard filler per 100 parts by weight of a hydrogenated nitrile rubber and containing 72 to 87 parts by weight of a carbon black having an average particle diameter of 40 to 50 nm, an iodine adsorption of 35 to 49 g/kg, and a DBP oil absorption of 100 to 160 ml/100 g, as well as an HNBR crosslinked body acquired by crosslinking the HNBR composition.