发明授权
- 专利标题: Process for the production of ballast
- 专利标题(中): 镇流器生产工艺
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申请号: US14006716申请日: 2012-03-21
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公开(公告)号: US09297121B2公开(公告)日: 2016-03-29
- 发明人: Andreas Hoffmann , Torsten Erwe , Udo Maier , Hans-Guido Wirtz , Thomas Kleiner , Ralf Busch
- 申请人: Andreas Hoffmann , Torsten Erwe , Udo Maier , Hans-Guido Wirtz , Thomas Kleiner , Ralf Busch
- 申请人地址: DE Leverkusen
- 专利权人: Covestro Deutschland AG
- 当前专利权人: Covestro Deutschland AG
- 当前专利权人地址: DE Leverkusen
- 代理机构: Drinker Biddle & Reath LLP
- 优先权: WOPCT/CN2011/000496 20110324
- 国际申请: PCT/EP2012/054972 WO 20120321
- 国际公布: WO2012/126936 WO 20120927
- 主分类号: E01C21/00
- IPC分类号: E01C21/00 ; E01B1/00 ; C08G18/10 ; C08G101/00
摘要:
A process for the production of ballast for railway track laying, road construction, dam construction and bank protection, wherein ballast stones are spread out to form ballast and a reaction mixture for the preparation of a polyurethane foam, produced from components by a low-pressure process, is applied between the spread ballast stones.
公开/授权文献
- US20140161526A1 PROCESS FOR THE PRODUCTION OF BALLAST 公开/授权日:2014-06-12