发明授权
- 专利标题： Coarse-cell polyurethane elastomers
- 专利标题（中）： 粗细胞聚氨酯弹性体
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申请号： US12921325申请日： 2009-03-13
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公开(公告)号： US08642670B2公开(公告)日： 2014-02-04
- 发明人: Nils Mohmeyer , Ralf Fritz , Annika Habicht , Daniela Tepe , Frank Prissok , Michael Harms , Bernd Bruchmann , Daniel Schoenfelder , Daniel Freidank , Andreas Emge , Andrea Eisenhardt
- 申请人： Nils Mohmeyer , Ralf Fritz , Annika Habicht , Daniela Tepe , Frank Prissok , Michael Harms , Bernd Bruchmann , Daniel Schoenfelder , Daniel Freidank , Andreas Emge , Andrea Eisenhardt
- 申请人地址： DE Ludwigshafen
- 专利权人： BASF SE
- 当前专利权人： BASF SE
- 当前专利权人地址： DE Ludwigshafen
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： EP08152768 20080314; EP08159849 20080707; EP08162280 20080813; EP08172757 20081223
- 国际申请： PCT/EP2009/052996 WO 20090313
- 国际公布： WO2009/112576 WO 20090917
- 主分类号： C08G18/28
- IPC分类号： C08G18/28
摘要：
The present invention relates to an open-cell polyurethane foam comprising polyester and polyether structures and having a density of 70 to 300 g/L, 1 to 20 cells/cm, a rebound intensity greater than 30%, an elongation at break of greater than 200%, a tear propagation resistance of greater than 1.2 N/mm and a tensile strength of greater than 200 kPa. The present invention further relates to a process for producing inventive open-cell polyurethane sponges and to the use thereof as a pipe cleaning sponge.
公开/授权文献
- US20110021652A1 COARSE-CELL POLYURETHANE ELASTOMERS 公开/授权日：2011-01-27
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