发明授权
- 专利标题： EPDM foam, producing method thereof, and sealing material
- 专利标题（中）： EPDM泡沫，其制造方法和密封材料
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申请号： US12926682申请日： 2010-12-03
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公开(公告)号： US08481155B2公开(公告)日： 2013-07-09
- 发明人: Takayuki Iwase , Joji Kawata , Takumi Kousaka , Nobuyuki Takahashi
- 申请人： Takayuki Iwase , Joji Kawata , Takumi Kousaka , Nobuyuki Takahashi
- 申请人地址： JP Osaka
- 专利权人： Nitto Denko Corporation
- 当前专利权人： Nitto Denko Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： Edwards Neils PLLC
- 代理商 Jean C. Edwards, Esq.
- 优先权： JP2009-276576 20091204
- 主分类号： B32B7/10
- IPC分类号： B32B7/10 ; B29C44/58
摘要：
An EPDM foam is obtained by foaming a foam composition containing, based on 100 parts by weight of an ethylenepropylenediene rubber, 0.1 to 5 parts by weight of a vulcanizer, 0.1 to 10 parts by weight of a vulcanization accelerator, 1 to 30 parts by weight of a foaming agent, and a foaming auxiliary agent. The vulcanization accelerator contains a thiourea vulcanization accelerator, a thiazole vulcanization accelerator, a dithiocarbamate vulcanization accelerator, and a thiuram vulcanization accelerator such that a thiourea vulcanization accelerator/thiazole vulcanization accelerator/dithiocarbamate vulcanization accelerator/thiuram vulcanization accelerator weight ratio is in a range of 1 to 20/1 to 20/1 to 20/1 to 30.
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