Invention Grant
- Patent Title: Process and apparatus for continuous production of aqueous polyurethane dispersions
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Application No.: US15743342Application Date: 2016-07-07
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Publication No.: US10752727B1Publication Date: 2020-08-25
- Inventor: Hans Georg Grablowitz , Alexander Pross , Reiner Witkowski , Holger Breuer , Sven Gestermann , Christian Joachim Hahn , Stephan Schubert , Joachim Ritter
- Applicant: Covestro Deutschland AG
- Applicant Address: DE Leverkusen
- Assignee: Covestro Deutschland AG
- Current Assignee: Covestro Deutschland AG
- Current Assignee Address: DE Leverkusen
- Agency: Faegre Drinker Biddle & Reath LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1239143b
- International Application: PCT/EP2016/066078 WO 20160707
- International Announcement: WO2017/009161 WO 20170119
- Main IPC: C08G18/42
- IPC: C08G18/42 ; C08G18/08 ; C08G18/75 ; C08G18/44 ; C08G18/73
Abstract:
The application relates to a process for continuously producing aqueous polyurethane dispersions, which is characterized by the use of micro structured mixing elements and addition of water twice during the dispersion step. The energy input in the mixing of the dispersion is low. In addition, the application describes an apparatus suitable for execution of the aforementioned process.
Information query
