Invention Grant
- Patent Title: Acylation process
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Application No.: US15027366Application Date: 2014-10-08
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Publication No.: US10889654B2Publication Date: 2021-01-12
- Inventor: Andreas Hummel , Hans-Juergen Ehret
- Applicant: SOLVAY ACETOW GmbH
- Applicant Address: DE Freiburg
- Assignee: SOLVAY ACETOW GmbH
- Current Assignee: SOLVAY ACETOW GmbH
- Current Assignee Address: DE Freiburg
- Agency: Vorys, Sater, Seymour & Pease
- Priority: EP13188120 20131010
- International Application: PCT/EP2014/071573 WO 20141008
- International Announcement: WO2015/052255 WO 20150416
- Main IPC: C08B3/06
- IPC: C08B3/06 ; C08B31/04 ; C08B37/00 ; C02F1/44 ; C07C51/487 ; C08B3/28 ; C02F101/30 ; C02F103/28

Abstract:
The invention concerns a process for the manufacture of an acylated polysaccharide which comprises. (a) reacting a polysaccharide with an acylating agent to produce an acylated polysaccharide and (b) washing the acylated polysaccharide with water containing from 0.05 to 15 mg/l Ca2+-ions (c) recovering the washed acylated polysaccharide and an aqueous phase containing carboxylic acid from step (b).
Public/Granted literature
- US20160237172A1 Acylation Process Public/Granted day:2016-08-18
Information query