- 专利标题: Process for the manufacture of carboxylic anhydride
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申请号: US15532306申请日: 2015-12-01
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公开(公告)号: US20170327450A1公开(公告)日: 2017-11-16
- 发明人: Thomas KRUMREY , Andreas HUMMEL , Dirk HÖLTER
- 申请人: SOLVAY ACETOW GmbH
- 申请人地址: DE FREIBURG
- 专利权人: SOLVAY ACETOW GmbH
- 当前专利权人: SOLVAY ACETOW GmbH
- 当前专利权人地址: DE FREIBURG
- 优先权: EP14195884.3 20141202
- 国际申请: PCT/EP2015/078160 WO 20151201
- 主分类号: C07C51/56
- IPC分类号: C07C51/56 ; C07C11/21 ; B27K5/00 ; C07C51/573 ; C07C49/90
摘要:
The present invention concerns a process for manufacturing a fraction comprising carboxylic acid anhydride by reaction of a fraction comprising carboxylic acid with a ketene, and the use of the fraction comprising carboxylic acid anhydride in a process for acylation of polysaccharides.
公开/授权文献
- US10106485B2 Process for the manufacture of carboxylic anhydride 公开/授权日:2018-10-23
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