| 发明名称 |
RIGID POLYURETHANE FOAM AND ITS PREPARATION USING A MIXTURE (AT LEAST 3) OF PHYSICAL BLOWING AGENTS |
| 摘要 |
Rigid polyurethane foams having a closed cell content higher than 85 %, a core density of below 32 kg/m<3> and a dimensional stability, expressed as the sum of the absolute values of the relative linear changes in the three dimensions after exposure to -20 DEG C for 14 days, of below 15 %. |
| 申请公布号 |
NZ293596(A) |
申请公布日期 |
1998.07.28 |
| 申请号 |
NZ19950293596 |
申请日期 |
1995.09.15 |
| 申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
BIESMANS, GUY LEON JEAN GHISLAIN;BARKER, MARTIN |
| 分类号 |
C08G18/00;C08J9/14 |
主分类号 |
C08G18/00 |
| 代理机构 |
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