Hartwig Kempkes

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Overath, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for the production of ABS compositions having an improved su...
- Patent number 9,714,324
- Issue date Jul 25, 2017
- Covestro Deutschland AG
- Hans-Juergen Thiem
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for working up distillation residues from isocyanate production
- Patent number 9,029,595
- Issue date May 12, 2015
- Bayer MaterialScience AG
- Friedhelm Steffens
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR THE PRODUCTION OF ABS COMPOSITIONS HAVING AN IMPROVED SU...
- Publication number 20150361225
- Publication date Dec 17, 2015
- Bayer MaterialScience AG
- Hans-Juergen THIEM
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
METHOD FOR WORKING UP DISTILLATION RESIDUES FROM ISOCYANATE PRODUCTION
- Publication number 20150126769
- Publication date May 7, 2015
- Bayer MaterialScience LLC
- Friedhelm Steffens
- C07 - ORGANIC CHEMISTRY