发明名称 |
METHOD OF INCREASING THE CELL VOLUME OF PUR FOAMS |
摘要 |
The mean pore number of conventional open-celled PUR foams having at least 8 ppi can be significantly reduced if the foam is stored in a liquid compound having an aromatic skeleton and at least one hydroxy group or in such a compound dissolved in a solvent. During this treatment, the foam experiences an increase in volume of at least 10% without the pores collapsing. Ceramic foams produced from open-celled PUR foam having a mean pore count of less than 8 ppi are particularly suitable as flame zone structure for pore burners.
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申请公布号 |
CA2521454(A1) |
申请公布日期 |
2006.03.29 |
申请号 |
CA20052521454 |
申请日期 |
2005.09.28 |
申请人 |
SGL CARBON AG |
发明人 |
ROSSBERG, KARIN;CHODURA, ALFRED;BENITSCH, BODO;MATHEKE, TORSTEN |
分类号 |
C08J9/228;C08G18/48 |
主分类号 |
C08J9/228 |
代理机构 |
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代理人 |
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