Invention Grant
- Patent Title: Method for purification of 4-hydroxyacetophenone
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Application No.: US16337467Application Date: 2017-04-21
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Publication No.: US10752571B2Publication Date: 2020-08-25
- Inventor: Ravikumar Pillai , Sven Siegel , Ev Suess , Karolin Bolte , Yan Liuxin
- Applicant: SYMRISE AG , SINO-HIGH (CHINA) CO. LTD.
- Applicant Address: DE Holzminden CN Nanjing
- Assignee: SYMRISE AG,SINO-HIGH (CHINA) CO. LTD.
- Current Assignee: SYMRISE AG,SINO-HIGH (CHINA) CO. LTD.
- Current Assignee Address: DE Holzminden CN Nanjing
- Agency: Polsinelli PC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@21db61ce
- International Application: PCT/EP2017/059489 WO 20170421
- International Announcement: WO2018/068902 WO 20180419
- Main IPC: C07C45/81
- IPC: C07C45/81 ; C07C45/79 ; C07C49/825
Abstract:
Methods of purifying crude 4-hydroxyacetophenone using one or more solvents as well as products comprising or consisting of crystallized 4-hydroxyacetophenone and one, two or more solvent(s). The products may be obtained or obtainable from the methods for purifying crude 4-hydroxyacetophenone.
Public/Granted literature
- US20200039911A1 METHOD FOR PURIFICATION OF 4-HYDROXYACETOPHENONE Public/Granted day:2020-02-06
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