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Priority claimed from DE4019050Aexternal-prioritypatent/DE4019050A1/en
Priority claimed from DE4019052Aexternal-prioritypatent/DE4019052A1/en
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Priority claimed from EP91109074Aexternal-prioritypatent/EP0461517B1/en
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Publication of ATE93409T1publicationCriticalpatent/ATE93409T1/en
Removal of concn. of heavy metal ions from aq. soln. - by contacting with opt. neutralised copolymer of ethylene, (meth)acrylic acid and (meth)acrylate ester