Erhard Michaels

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Koln, DE

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Patents Grantslast 30 patents

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Polymer dispersions in polyester polyols
- Patent number 7,893,150
- Issue date Feb 22, 2011
- Bayer MaterialScience AG
- Hartmut Nefzger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...