Invention Grant
- Patent Title: Preparation of polyisocyanates containing uretdione groups
- Patent Title (中): 含有脲二酮基团的多异氰酸酯的制备
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Application No.: US10719175Application Date: 2003-11-21
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Publication No.: US07067654B2Publication Date: 2006-06-27
- Inventor: Frank Richter , Reinhard Halpaap , Hans-Josef Laas , Andreas Hecking
- Applicant: Frank Richter , Reinhard Halpaap , Hans-Josef Laas , Andreas Hecking
- Applicant Address: DE Leverkusen
- Assignee: Bayer MaterialScience AG
- Current Assignee: Bayer MaterialScience AG
- Current Assignee Address: DE Leverkusen
- Agent Joseph C. Gil
- Priority: DE10254878 20021125
- Main IPC: C07D229/00
- IPC: C07D229/00
Abstract:
The invention relates to the use of cycloalkylphosphines as catalysts for isocyanate dimerization and to a process for preparing polyisocyanates containing uretdione groups.
Public/Granted literature
- US20040106789A1 Preparation of polyisocyanates containing uretdione groups Public/Granted day:2004-06-03
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