......DE....FR....IT............................................................JDIM360 (Ver 1.5 21 Nov 2005) - 1999001/01674521CORRECTED EUROPEAN PATENT APPLICATIONpublished in accordance with Art. 158(3) EPCA8A120061018W10000000072deBibliographieenBibliographyfrBibliographieEP04792617.52004101320060426jaenen200335397420031014JP200336461320031024JP200338380820031113JP200338384920031113JP200338394320031113JP200338522020031114JP200338680020031117JP200338819720031118JP200339097920031120JP200339714620031127JP200610182006422006062820062620061018200642

C08L 21/00 20060101AFI20050427BHEP

C08K 5/45 20060101ALI20050427BHEP

C07D 341/00 20060101ALI20050427BHEP

deKAUTSCHUKZUSAMMENSETZUNG MIT CYCLISCHEM POLYSULFOD ALS VULKANISATIONSMITTEL UND DARAUS HERGESTELLTER LUFTREIFENenRUBBER COMPOSITION CONTAINING CYCLIC POLYSULFIDE AS VULCANIZER AND PNEUMATIC TIRE MADE THEREFROMfrCOMPOSITION DE CAOUTCHOUC CONTENANT UN POLYSUFLIDE CYCLIQUE COMME AGENT VULCANISANT ET PNEUMATIQUE FABRIQUE A PARTIR DE LADITE COMPOSITION1THE YOKOHAMA RUBBER CO., LTD.00204783110 345 a/jme36-11, Shimbashi 5-chome Minato-kuTokyo 105-8685JPCHOI, Wonmun; c/o The Yokohama Rubber Co., Ltd.Hiratsuka Factory,2-1, OiwakeHiratsuka-shi, Kanagawa 254-8601JPMATSUMURA, Tomoyuki c/o The Yokohama Rubber Co LtdHiratsuka Factory,2-1, OiwakeHiratsuka-shi, Kanagawa 254-8601JPAMINO, Naoya; c/o The Yokohama Rubber Co., Ltd.Hiratsuka Factory,2-1, OiwakeHiratsuka-shi, Kanagawa 254-8601JPTAKASE, Kazuhiro c/o The Yokohama Rubber Co., Ltd.Hiratsuka Factory,2-1, OiwakeHiratsuka-shi, Kanagawa 254-8601JPKANENARI, Daisuke c/o The Yokohama Rubber Co. Ltd.Hiratsuka Factory,2-1, OiwakeHiratsuka-shi, Kanagawa 254-8601JPHOTAKA, Takeshi; c/o The Yokohama Rubber Co., Ltd.Hiratsuka Factory,2-1, OiwakeHiratsuka-shi, Kanagawa 254-8601JPNATORI, Junichirou c/o The Yokohama Rubber Co Ltd.Hiratsuka Factory,2-1, OiwakeHiratsuka-shi, Kanagawa 254-8601JPHOFFMANN EITLE00102421Patent- und Rechtsanwälte Arabellastrasse 481925 MünchenDEDEFRITJP200401545120041013jaWO200503564720050421200516

A rubber composition containing 100 parts by weight a sulfur-vulcanizable rubber (A) and 0.1 to 30 parts by weight of a vulcanization agent of a cyclic polysulfide (B) having the formula (I): wherein R is a substituted or unsubstituted C₂ to C₂₀ alkylene group, substituted or unsubstituted C₂ to C₂₀ oxyalkylene group or alkylene group having an aromatic ring, n is an integer of 1 to 20, x is a number of 2 to 6 on average.