Issued Patents 1989
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876310 | Hydrocarbon resin/polyphenylene ether comblike polymers, methods of producing these polymers, and their mixtures with polyphenylene ethers | — | 1989-10-24 |
| 4873310 | Aromatic polyamides based on phenoxyterephthalic acid and process for preparing them | Naoki Ikeda | 1989-10-10 |
| 4868283 | Process for the production of polyphenylene ethers with reduced inherent color | Wilfried Ribbing | 1989-09-19 |
| 4868272 | Molding materials, containing imide group-containing aromatic polyamides and process for their preparation | Juergen Finke, Friedrich Georg Schmidt | 1989-09-19 |
| 4864009 | Molding composition consisting of aliphatic/aromatic copolyamide | Juergen Finke, Wolfgang Neugebauer, Holger Koziel | 1989-09-05 |
| 4851496 | Molding material comprising a thermotropic, aromatic polyester from bis(carboxy phenoxy)diphenyl sulfone | Heinz-Guenter Poll, Wolfgang Neugebauer, Juergen Finke | 1989-07-25 |
| 4843140 | Aromatic polyesters based on phenoxyterephthalic acid, and methods of manufacturing and using same | Heinz-Guenter Poll | 1989-06-27 |
| 4843139 | Moldable high molecular weight aromatic polyamide from poly arylene oxy diamine | Juergen Finke | 1989-06-27 |
| 4824932 | Method of manufacturing thermoplastically processible aromatic polyamides and polyamidimides from bisamide | Juergen Finke | 1989-04-25 |
| 4822869 | Process for introducing gases into liquids in the production of polyphenylene ethers or sulfoxidized parrafins using horizontal reactors | Franz-Michael Bollenrath, Bernhard Hentschel | 1989-04-18 |
| 4814431 | Process for improving the color quality of polyphenylene oxide with unsaturated carboxylic acid ester | Wilfried Ribbing | 1989-03-21 |