Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Quickel Hans Rudolph Jurgen Hocker Jurgen Lewalter Hans Jurgen Rosenkranz Birger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE2431071Aexternal-prioritypatent/DE2431071C2/en
Application filed by Bayer AGfiledCriticalBayer AG
Application grantedgrantedCritical
Publication of AU8242975ApublicationCriticalpatent/AU8242975A/en
Publication of AU491666B2publicationCriticalpatent/AU491666B2/en
Asymmetrical, semipermeable membranes made of cyclic polyureas and their use for seawater desalination or for the separation and concentration of mixtures of substances