Invention Grant
- Patent Title: EPDM foam, producing method thereof, and sealing material
- Patent Title (中): EPDM泡沫，其制造方法和密封材料
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Application No.: US12926682Application Date: 2010-12-03
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Publication No.: US08481155B2Publication Date: 2013-07-09
- Inventor: Takayuki Iwase , Joji Kawata , Takumi Kousaka , Nobuyuki Takahashi
- Applicant: Takayuki Iwase , Joji Kawata , Takumi Kousaka , Nobuyuki Takahashi
- Applicant Address: JP Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Osaka
- Agency: Edwards Neils PLLC
- Agent Jean C. Edwards, Esq.
- Priority: JP2009-276576 20091204
- Main IPC: B32B7/10
- IPC: B32B7/10 ; B29C44/58
Abstract:
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.
Public/Granted literature
- US20110135909A1 EPDM foam, producing method thereof, and sealing material Public/Granted day:2011-06-09
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