发明名称 |
Process for the preparation of lightweight, planar molded articles |
摘要 |
The subject of this invention is a process for the preparation of lightweight, planar molded articles, e.g. those having a thickness from 0.1 to 40 mm and having a density of 0.015 to 0.25 g/cm3, by treating porous materials, preferably open celled or flexible or semi-rigid polyurethane foams, with an effective amount of an aqueous dispersion or emulsion of organic compounds containing NCO groups and allowing the isocyanate compound to cure, optionally while molding, at a temperature from 25 DEG C. to 180 DEG C. and optionally at a pressure of 1 to 50 bar. The invention also relates to molded articles prepared according to this process which have special mechanical properties.
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申请公布号 |
US4812368(A) |
申请公布日期 |
1989.03.14 |
申请号 |
US19870136990 |
申请日期 |
1987.12.23 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
SCHERZER, DIETRICH;ZAHN, ERWIN;FRANK, WOLFRAM |
分类号 |
C08J9/04;C08G18/00;C08G18/70;C08J9/36;C08J9/40;C08L75/04;(IPC1-7):B32B5/18;B32B5/24;C08J7/16;B29C67/20 |
主分类号 |
C08J9/04 |
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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