| US 7,514,486 B2 | ||
| Vibration damping rubber composition | ||
| Norihito Kimura, Kasugai (Japan); Fumihiko Jinno, Kasugai (Japan); and Takehiko Taguchi, Komaki (Japan) | ||
| Assigned to Tokai Rubber Industries, Ltd., Komaki-shi (Japan) | ||
| Filed on Mar. 24, 2006, as Appl. No. 11/387,779. | ||
| Claims priority of application No. 2005-092279 (JP), filed on Mar. 28, 2005. | ||
| Prior Publication US 2006/0217468 A1, Sep. 28, 2006 | ||
| Int. Cl. C08K 5/34 (2006.01) | ||
| U.S. Cl. 524—105 [524/543] | 6 Claims |
| 1. A vibration damping rubber composition comprising:
a diene-based rubber;
a vulcanizing agent of a bismaleimide compound selected from the group consisting of
N,N′(4,4,-diphenyl-methane) bismaleimide represented by the following chemical formula (3), bis (3-ethyl-5-methyl-4-maleimidephenyl)methane
represented by the following chemical formula (4), 2,2′-bis [4-(4-maleimide phenoxy) phenyl]propane represented by the following
chemical formula (5), m-phenylenebis(methylene) bismaleimide represented by the following chemical formula (6), and m-phenylenebis
(methylene) biscitraconimide represented by the following chemical formula (7),
 wherein the vulcanizing agent is sulfur-free; and
a vulcanization accelerator.
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