发明授权
US08258196B2 Method for producing rigid polyurethane foam, and rigid polyurethane foam
失效
硬质聚氨酯泡沫塑料的制造方法，硬质聚氨酯泡沫塑料
- 专利标题： Method for producing rigid polyurethane foam, and rigid polyurethane foam
- 专利标题（中）： 硬质聚氨酯泡沫塑料的制造方法，硬质聚氨酯泡沫塑料
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申请号： US12469178申请日： 2009-05-20
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公开(公告)号： US08258196B2公开(公告)日： 2012-09-04
- 发明人: Katsuhiko Shimizu , Teruhiko Yasuda , Hiroshi Wada
- 申请人： Katsuhiko Shimizu , Teruhiko Yasuda , Hiroshi Wada
- 申请人地址： JP Tokyo
- 专利权人： Asahi Glass Company, Limited
- 当前专利权人： Asahi Glass Company, Limited
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2006-312813 20061120
- 主分类号： C08G77/46
- IPC分类号： C08G77/46
摘要：
To provide a method for producing a rigid polyurethane foam, whereby it is possible to reduce the density without causing deterioration in dimensional stability, and a rigid polyurethane foam.A method for producing a rigid polyurethane foam, which comprises a step of reacting a polyol having a hydroxyl value of from 200 to 800 mgKOH/g with a polyisocyanate compound in the presence of an amino-modified silicone, a catalyst, a blowing agent and a surfactant.
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