发明名称 |
PROCESS FOR PREPARING RIGID FOAMED MATERIALS CONTAINING URETHANE GROUPS. |
摘要 |
The invention relates to the preparation of rigid foamed materials containing urethane groups using a mixture of blowing agents of 5 to 50 parts by weight of C3- and/or C4-alkanes and 50 to 95 parts by weight of cyclopentane. The invention also relates to the use of the rigid foamed materials thus prepared as composite elements or for filling hollow spaces during the construction of refrigerators.
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申请公布号 |
MX9804573(A) |
申请公布日期 |
1998.09.30 |
申请号 |
MX19980004573 |
申请日期 |
1998.06.08 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
KARL WERNER DIETRICH;NORBERT EISEN;GERHARD HEILIG |
分类号 |
C08G18/32;C08G18/48;C08J9/14;(IPC1-7):C08J09/14 |
主分类号 |
C08G18/32 |
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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