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:
May. 02, 2017
Filed:
Mar. 10, 2014
Applicant:
Sumitomo Rubber Industries, Ltd., Kobe-shi, Hyogo, JP;
Inventors:
Assignee:
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 19/00 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
C08L 19/00 (2013.01); G03G 15/6511 (2013.01); G03G 15/6529 (2013.01); G03G 15/6552 (2013.01); G03G 2215/00683 (2013.01);
Abstract
A rubber composition contains a higher ethylene content EPDM and a lower ethylene content EPDM as a rubber component. The proportion of the higher ethylene content EPDM is 30 to 80 mass % based on the overall amount of the rubber component. The rubber composition is less susceptible to reduction in friction coefficient μ and has a proper hardness, a smaller permanent elongation and an excellent abrasion resistance after crosslinking. Therefore, the rubber composition is suitable for a sheet conveying roller and an image forming apparatus incorporating the sheet conveying roller.