发明名称 |
Method for producing rigid polyurethane foams by means of graft polyhydric alcohols |
摘要 |
The invention relates to a process for producing rigid polyurethane foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms reactive toward isocyanate groups, in the presence of c) catalysts, and d) blowing agents, where, among the compounds having at least two hydrogen atoms reactive toward isocyanate groups, there is at least one graft polyol present capable of preparation via in-situ polymerization of ethylenically unsaturated monomers in polyether alcohols.
|
申请公布号 |
US2006058409(A1) |
申请公布日期 |
2006.03.16 |
申请号 |
US20050530707 |
申请日期 |
2005.04.08 |
申请人 |
ZASCHKE BERND;EMGE ANDREAS;KNORR GOTTFRIED;MALOTKI PETER V;SEIFERT HOLGER |
发明人 |
ZASCHKE BERND;EMGE ANDREAS;KNORR GOTTFRIED;MALOTKI PETER V.;SEIFERT HOLGER |
分类号 |
C08G18/00;C08G18/40;C08G18/63 |
主分类号 |
C08G18/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|