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公开(公告)号：US20150094390A1
公开(公告)日：2015-04-02
申请号：US14394549
申请日：2013-04-25
Applicant: BRIDGESTONE CORPORATION
Inventor： Masaru Otsuka , Katsuya Seki , Tomohiro Yamamoto , Tsuyoshi Itoyama
IPC: C09K3/10
CPC classification number: C09K3/1006 , C08J9/0061 , C08J9/103 , C08J2201/026 , C08J2300/22 , C08J2423/16 , C08K3/04 , C08K3/26 , C08K5/0025 , C08L23/0853 , C08L23/16 , C09K3/1025 , C09K2200/0239 , C09K2200/0447 , C09K2200/0607 , C09K2200/062 , C09K2200/0622 , C09K2200/0642
Abstract: Provided is a sealing material having low hardness, low density, and excellent sealing properties. A sealing material, made by vulcanizing and foaming a blend containing: a thermoplastic resin; a foaming agent; a vulcanizing agent; and a rubber component containing a rubber copolymer of ethylene, a non-conjugate diene, and an α-olefin with 3 or more carbon atoms; wherein the blend contains 2 to 4 mass parts of stearic acid and 5 to 7 mass parts of CaO in 100 mass parts of the rubber component, and the 50% compressive stress of the sealing material is 100 kPa or less.
Abstract translation: 提供具有低硬度，低密度和优异的密封性能的密封材料。 一种密封材料，其通过硫化和发泡包含热塑性树脂的共混物制成; 发泡剂; 硫化剂; 和含有乙烯，非共轭二烯，碳原子数3以上的α-烯烃的橡胶共聚物的橡胶成分; 其中所述共混物在100质量份橡胶组分中含有2至4质量份的硬脂酸和5至7质量份的CaO，并且密封材料的50％的压缩应力为100kPa以下。
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公开(公告)号：US20150094385A1
公开(公告)日：2015-04-02
申请号：US14395096
申请日：2013-04-09
Applicant: BRIDGESTONE CORPORATION
Inventor： Koji Achiha , Takahiro Sakami , Tsuyoshi Itoyama
IPC: C08J9/10
CPC classification number: C08J9/103 , C08J9/0023 , C08J2201/026 , C08J2203/04 , C08J2323/16 , C08J2347/00 , C08L23/16
Abstract: Provided are a rubber foam composition from which a rubber foam having low metal corrosive properties, low fogging properties and reduced odor and causing no poor foaming or tackiness of the rubber foam surface can be obtained, and a rubber foam using the same. The rubber foam composition comprises: a rubber component including a copolymer rubber of ethylene, an α-olefin having three or more carbon atoms and a non-conjugated diene, a vulcanizing agent, and a foaming agent, the composition being characterized in that the vulcanizing agent comprises α,α′-di(t-butylperoxy)diisopropylbenzene and a quinoid-based vulcanizing agent, and characterized by being substantially free of urea-based foaming auxiliary, and the rubber foam uses the same.
Abstract translation: 提供一种橡胶发泡组合物，可以获得具有低金属腐蚀性，低雾化性和气味降低并且不会发生橡胶泡沫表面的不良发泡或粘性的橡胶泡沫，以及使用其的橡胶泡沫。 该橡胶组合物包括：包含乙烯，具有三个以上碳原子的α-烯烃和非共轭二烯的共聚物橡胶，硫化剂和发泡剂的橡胶组分，其特征在于硫化 试剂包括α，α'-二（叔丁基过氧）二异丙基苯和醌型硫化剂，其特征在于基本上不含脲基发泡助剂，并且橡胶泡沫使用它们。
