Invention Grant
- Patent Title: Process for preparing polyisocyanates from biomass
- Patent Title (中): 从生物质制备多异氰酸酯的方法
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Application No.: US13479961Application Date: 2012-05-24
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Publication No.: US08933262B2Publication Date: 2015-01-13
- Inventor: Eckhard Stroefer , Otto Machhammer , Stefan Bitterlich , Roman Prochazka , Mario Emmeluth , Julia Leschinski , Emmanouil Pantouflas , Dirk Klingler , Stephan Deuerlein , Stephan Schunk , Jochem Henkelmann , Dieter Stützer
- Applicant: Eckhard Stroefer , Otto Machhammer , Stefan Bitterlich , Roman Prochazka , Mario Emmeluth , Julia Leschinski , Emmanouil Pantouflas , Dirk Klingler , Stephan Deuerlein , Stephan Schunk , Jochem Henkelmann , Dieter Stützer
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: C07C263/00
- IPC: C07C263/00 ; C07C263/10
Abstract:
The present invention relates to a process for preparing polyisocyanates from natural raw material sources, in which a composition comprising low molecular weight aromatics which comprise at least one hydroxy group or at least one alkoxy group per molecule (oxyaromatics) is produced from a biomass material, these oxyaromatics are converted into the corresponding aromatic amines and, optionally after condensation with formaldehyde, reacted further with phosgene to give compounds comprising isocyanate groups.
Public/Granted literature
- US20120302786A1 PROCESS FOR PREPARING POLYISOCYANATES FROM BIOMASS Public/Granted day:2012-11-29
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