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:
Oct. 15, 2002
Filed:
May. 30, 2001
Tokai Rubber Industries, Ltd., Komaki, JP;
Abstract
A vibration damping rubber member having excellent durability, wherein an improvement includes: the vibration damping rubber member being obtained by vulcanizing a composition in which an unvulcanized natural rubber material and an unvulcanized acrylic rubber material are evenly mixed together in a proportion of 90/10˜60/40 by weight. Upon vulcanization, fine particles of a vulcanized acrylic rubber having a size of 1˜100 &mgr;m, obtained by vulcanization of the unvulcanized acrylic rubber material are dispersed in a matrix phase of a vulcanized natural rubber, which is obtained by vulcanization of the unvulcanized natural rubber material. A method of producing the vibration damping rubber member is also disclosed.