Invention Grant
- Patent Title: Process for preparing isosorbide ethoxylate di(meth)acrylate
- Patent Title (中): 异山梨醇乙氧基化二(甲基)丙烯酸酯的制备方法
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Application No.: US15051974Application Date: 2016-02-24
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Publication No.: US09562054B2Publication Date: 2017-02-07
- Inventor: Andrea Misske , Friederike Fleischhaker , Christoph Fleckenstein , Martin Kaller , Ulrik Stengel , Mathieu Blanchot , Claudia Stoer , Ritesh Nair
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: C07D493/04
- IPC: C07D493/04 ; C08F24/00 ; C09J4/06 ; C08F222/10 ; C09J4/00

Abstract:
A process for preparing isosorbide ethoxylate di(meth)acrylate by transesterifying alkyl (meth)acrylate with isosorbide ethoxylate, comprising the steps of: (i) ethoxylating isosorbide to give isosorbide ethoxylate, (ii) reacting alkyl (meth)acrylate with isosorbide ethoxylate in the presence of potassium phosphate as catalyst and a stabilizer and in the presence of an azeotroping agent which forms an azeotrope with the alcohol bound in the alkyl (meth)acrylate, (iii) continuously distilling off the azeotrope of azeotroping agent and alcohol, wherein steps (ii) and (iii) are conducted simultaneously until the isosorbide ethoxylate has been essentially fully converted, (iv) removing the catalyst from the product mixture comprising isosorbide ethoxylate di(meth)acrylate, (v) distilling unconverted alkyl (meth)acrylate and azeotroping agent out of the product mixture.
Public/Granted literature
- US20160251370A1 PROCESS FOR PREPARING ISOSORBIDE ETHOXYLATE DI(METH)ACRYLATE Public/Granted day:2016-09-01
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