Invention Grant
- Patent Title: Process for preparing polyester alcohols
- Patent Title (中): 聚酯醇的制备方法
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Application No.: US14498294Application Date: 2014-09-26
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Publication No.: US09133093B2Publication Date: 2015-09-15
- Inventor: Lionel Gehringer , Veronika Wloka , Ulrich Mueller , Marine Boudou , Ulrike Mahn , Elke Guetlich-Hauk
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP09168315 20090820
- Main IPC: C07C67/08
- IPC: C07C67/08 ; C08G18/42 ; C08G63/06 ; C08G63/12 ; C08G63/82 ; C08G63/87 ; B01J29/89
Abstract:
The invention relates to a process for preparing polyester alcohols by catalytic reaction of at least one at least polyfunctional carboxylic acid with at least one polyfunctional alcohol and/or by catalytic ring-opening polymerization of cyclic esters in the presence of catalysts, wherein a zeolite is used as catalyst.
Public/Granted literature
- US20150011792A1 PROCESS FOR PREPARING POLYESTER ALCOHOLS Public/Granted day:2015-01-08
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