发明名称 |
Process for making polyurethane foam. |
摘要 |
A flexible polyurethane foam article with regions of different hardness is made by introducing into a mould a foam formulation giving a foam of a given hardness and then introducing a foam formulation giving a foam of different hardness directly into the first foam formulation at a time corresponding to a volume expansion in the range 100% to 2300%. |
申请公布号 |
EP0068820(A1) |
申请公布日期 |
1983.01.05 |
申请号 |
EP19820303294 |
申请日期 |
1982.06.24 |
申请人 |
BP CHEMICALS LIMITED |
发明人 |
TENHAGEN, RUDOLF JOHANN |
分类号 |
A47C7/18;B29C39/10;B29C39/12;B29C44/04;B29K75/00;B29K105/04;B29L31/58;B32B5/32;C08G18/76;C08J9/00;C08J9/14 |
主分类号 |
A47C7/18 |
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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