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:
Sep. 16, 2003
Filed:
Mar. 15, 2001
Sadayuki Nakano, Ichihara, JP;
Takashi Nishida, Tokyo, JP;
Other;
Abstract
A rubber composition containing (A) an ethylene-&agr;-olefin based copolymer rubber having an intrinsic viscosity [&eegr;] of 2.0-10.0 as determined in xylene at 70° C., (B) a softening agent, and (C) a filler, which composition is superior in heat resistance and fatigue resistance, is obtained by a process including the steps of dividing component (A) into portions (A ) and (A ), dividing component (B) into portions (B ) and (B ), dividing component (C) into portions (C ) and (C ), kneading portions (A ), (B ) and (C ) together to obtain a first blend, adding portions (A ), (B ) and (C ) to the first blend to obtain a second blend and kneading the second blend to obtain the rubber composition.