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公开(公告)号:US20080108776A1
公开(公告)日:2008-05-08
申请号:US11591779
申请日:2006-11-02
申请人: James Michael Barnes , Harmut Nefzger , Erika Bauer , Stefan Penninger , Thomas Schutz , Heinrich Lutz , Horst Mews , Charles S. Gracik
发明人: James Michael Barnes , Harmut Nefzger , Erika Bauer , Stefan Penninger , Thomas Schutz , Heinrich Lutz , Horst Mews , Charles S. Gracik
IPC分类号: C08G18/00
CPC分类号: C08G18/4277 , C08G18/10 , C08G18/7678 , C08G18/3206
摘要: Stable NCO prepolymers are produced from polyisocyanates having a melting point greater than 70° C., preferably, naphthalene diisocyanate, having advantageous physical properties. An important feature of the process of the present invention is the rapid cooling of the prepolymer. The process of the present invention may be carried out on a continuous or batch basis. The prepolymers of the present invention are particularly suitable for the production of cast polyurethane elastomers.
摘要翻译: 稳定的NCO预聚物由熔点大于70℃的多异氰酸酯,优选萘二异氰酸酯制成,具有有利的物理性能。 本发明方法的一个重要特征是快速冷却预聚物。 本发明的方法可以连续或间歇地进行。 本发明的预聚物特别适用于生产铸塑聚氨酯弹性体。