发明公开
EP1786857A1 LOW DENSITY POLYURETHANE INTEGRAL SKIN FOAM SYSTEM PREPARED USING EXPANDABLE MICROSPHERES AND WATER AS COBLOWING AGENT
有权
系统与压实RAND ZONE聚氨酯泡沫低密度制成，采用可膨胀微球和水作为助发泡剂
- 专利标题： LOW DENSITY POLYURETHANE INTEGRAL SKIN FOAM SYSTEM PREPARED USING EXPANDABLE MICROSPHERES AND WATER AS COBLOWING AGENT
- 专利标题（中）： 系统与压实RAND ZONE聚氨酯泡沫低密度制成，采用可膨胀微球和水作为助发泡剂
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申请号： EP05789829.8申请日： 2005-09-08
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公开(公告)号： EP1786857A1公开(公告)日： 2007-05-23
- 发明人: BRUSA, Federico, Elachem S.R.L. , BRAMBILLASCA, Davide, Elachem S.R.L.
- 申请人： Elachem S.r.l.
- 申请人地址： Largo Isabella d'Aragona 4 20122 Milan IT
- 专利权人： Elachem S.r.l.
- 当前专利权人： Elachem S.r.l.
- 当前专利权人地址： Largo Isabella d'Aragona 4 20122 Milan IT
- 代理机构： Gislon, Gabriele
- 优先权： PCT/IT2004/000486 20040908
- 国际公布： WO2006027671 20060316
- 主分类号： C08J9/32
- IPC分类号： C08J9/32
摘要：
Foamed products with free-rise densities between 0.05 and 0.22 are obtained by reacting at least one polyol with at least one isocyanate-prepolymer, in the presence of an amount of expandable microspheres within the range of 1.0% to 30% by weight on the weight of said polyol and an amount of expanding agent which is from 0.5 to 0.1 times the amount of microspheres, and carrying out the polymer expansion step at a temperature which is sufficient to cause the expansion of the microspheres.
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