发明名称 |
RIGID POLYURETHANE AND POLYISOCYANATE FOAMS |
摘要 |
31,567 IMPROYED RIGID POLYURETHANES AND POLYISOCYANURATE FORMS Novel rigid polyurethane and/or polyisocyanurate foams are disclosed which have fine cell structure, low K-factor, and flame retardance. These foams are prepared by the reaction of a polyisocyanate with herterocyclic nitrogen containing polybeta-hydroxy urethane functional polyols which act as chemically bound flame retardants. Also disclosed are novel modified poly-beta-hydroxyalkyl carbamylalkylated heterocyclic nitrogen containing polyols useful for the formation of rigid foams.
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申请公布号 |
CA2059171(A1) |
申请公布日期 |
1992.07.15 |
申请号 |
CA19922059171 |
申请日期 |
1992.01.10 |
申请人 |
AMERICAN CYANAMID COMPANY |
发明人 |
POROSOFF, HAROLD;SINGH, BALWANT;FRISCH, KURT C. |
分类号 |
C08G18/32;C08G18/30;C08G18/38;C08G18/50;(IPC1-7):C07D251/48;C07D251/70;C07D487/04;C08J9/00;C08L79/04 |
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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