Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684202 | Tertiary amines, a process for their preparation and their use as hardening accelerators | Helmut-Martin Meier, Horst Clemens | 1997-11-04 |
| 5652307 | Three stage graft copolymers and weathering-stable, dull thermoplastic molding materials containing said copolymers and having good low-temperature toughness | Norbert Niessner | 1997-07-29 |
| 5637740 | Production of 2, 3-epoxypropyl trialkyl ammonium chlorides | Manfred Langer, Gert Roessler | 1997-06-10 |
| 5631323 | Composition of styrene-acrylonitrile copolymer matrix with particles of graft copolymer and crosslinked copolymer | Norbert Güntherberg, Ekkehard Jahns, Graham E. McKee, Bernhard Rosenau | 1997-05-20 |