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Rolf Treckmann
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Cologne, DE
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last 30 patents
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Patent Grant
Isolation of polycarbonate with carbon dioxide
Patent number
5,250,658
Issue date
Oct 5, 1993
Bayer Aktiengesellschaft
Hanns-Ingolf Paul
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for isolating polymers from their solvents using liquids co...
Patent number
5,229,486
Issue date
Jul 20, 1993
Bayer Aktiengesellschaft
Hanns-Ingolf Paul
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for isolating polycarbonates with CO.sub.2 under pressure
Patent number
5,221,731
Issue date
Jun 22, 1993
Bayer Aktiengesellschaft
Gunther Weymans
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...