发明名称 |
Rigid polyurethane foam with a thin non-porous skin |
摘要 |
One-shot polyurethane mouldings, consisting of a thin rigid skin and an internal zone of low density rigid foam, are made from a polyether-polyol (I) which is at least trifunctional and a diisocyanate (II) using at least twice the amount of faming mixture to fill normally the mould after expansion. |
申请公布号 |
DE1902836(A1) |
申请公布日期 |
1969.11.06 |
申请号 |
DE19691902836 |
申请日期 |
1969.01.21 |
申请人 |
NAPHTACHIMIE S.A. |
发明人 |
CORDONNIER,MICHEL;REPIQUET,GERARD;REGNAULT,JACQUES |
分类号 |
C08G18/48;C08G18/76;C08J9/34 |
主分类号 |
C08G18/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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