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:
Apr. 26, 2011
Filed:
Feb. 24, 2010
Takayuki Hattori, Kobe, JP;
Tetsuo Mizoguchi, Kobe, JP;
Shunichi Yabushita, Kobe, JP;
Kenichi Uesaka, Kobe, JP;
Takayuki Hattori, Kobe, JP;
Tetsuo Mizoguchi, Kobe, JP;
Shunichi Yabushita, Kobe, JP;
Kenichi Uesaka, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Hyogo, JP;
Abstract
A polymer composition for a conductive roller composed of a rubber component whose main component is an epichlorohydrin rubber containing ethylene oxide at not less than 55 mol % nor more than 95 mol %. Thioureas are added to 100 g of the rubber component as a crosslinking agent at a rate not less than 0.014 mol nor more than 0.080 mol. In a compression set test of a vulcanized rubber described in JIS K6262, a compression set measured at 70° C. for 22-24 hours is less than 15%; and in a volume resistivity value test described in JIS K6911, a volume resistivity value measured at an applied voltage of 1000V is less than 10[Ω·cm].