发明名称 |
Polymeric allophanates of diphenylmethane diisocyanate, prepolymers of these polymeric allophanates, and processes for the preparation of the polymeric allophanates and the prepolymers thereof |
摘要 |
The present invention relates to a new high functionality MDI. In particular, this invention relates to polymeric allophanates based on diphenylmethane diisocyanate having an NCO group content of 12 to 30%, prepolymers thereof, and processes for the production of these compositions. The prepolymers are stable liquids having NCO group contents of about 10 to about 28%.
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申请公布号 |
US2004049001(A1) |
申请公布日期 |
2004.03.11 |
申请号 |
US20020238444 |
申请日期 |
2002.09.09 |
申请人 |
SLACK WILLIAM E.;KEMP HERSEL T.;MILLER WILLIAM E. |
发明人 |
SLACK WILLIAM E.;KEMP HERSEL T.;MILLER WILLIAM E. |
分类号 |
C08G18/09;C08G18/10;C08G18/76;C08G18/78;(IPC1-7):C08G18/00 |
主分类号 |
C08G18/09 |
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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