The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2014
Filed:
Jul. 01, 2011
Yoshihisa Mizumoto, Kobe, JP;
Akihiko Kawatani, Kobe, JP;
Takashi Marui, Kobe, JP;
Kenichi Kuroda, Kobe, JP;
Yoshihisa Mizumoto, Kobe, JP;
Akihiko Kawatani, Kobe, JP;
Takashi Marui, Kobe, JP;
Kenichi Kuroda, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
The semiconductive roller according to the present invention includes a roller body having an outer peripheral surface made of a crosslinked substance of a semiconductive rubber composition and exhibiting Shore A hardness of not more than 60, the semiconductive rubber composition contains a base polymer made of a mixture of (1) mixed rubber N of liquid nitrile rubber and solid nitrile rubber, (2) chloroprene rubber C, and (3) epichlorohydrin rubber E in a mass ratio (C+E)/N of 10/90 to 80/20, the ratios of the chloroprene rubber and the epichlorohydrin rubber in the total quantity of the base polymer are not less than 5 mass % and not less than 5 mass % respectively, and roller resistance at an applied voltage of 5 V is not less than 10Ω and not more than 10Ω.