Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5426126 | Liquid, light-colored polyisocyanate mixtures and a process for their production | Herbert Gebauer, Pramod Gupta, Martin Hoppe | 1995-06-20 |
| 5367000 | Process for the production of rigid foams containing urethane and isocyanurate groups | Stephan Herman Wendel, Ulrich Weber | 1994-11-22 |
| 5223549 | Process for the production of rigid polyurethane foams | Gerhard Heilig, Wolfgang Schmitz | 1993-06-29 |
| 5084485 | Process for the production of rigid foams containing urethane and predominantly isocyanurate groups and their use as insulating materials | Gerhard Heilig, Wolfgang Schmitz | 1992-01-28 |
| 5028636 | Liquid polyisocyanate mixtures, a process for their preparation, and their use in the preparation of polyurethane foams | Herbert Gebauer, Pramod Gupta, Gerhard Heilig | 1991-07-02 |
| 4945120 | Process for the production of polyurethane foams using sterically hindered aromatic diamines | Richard Kopp, Gunter Oertel, Eckehard Weigand | 1990-07-31 |
| 4931480 | Process for the preparation of polyurethane foams | Kurt Krippl, Klaus Schulte, Erwin Hoffmann | 1990-06-05 |
| 4931481 | Process for the production of foams based on aromatic isocyanates using MG(OH).sub.2 and the foams produced thereby | Norbert Adam | 1990-06-05 |
| 4767795 | Polyol composition and a process for the preparation of flame-resistant polyurethane foams therefrom | Norbert Adam, Reinhard Kaufung | 1988-08-30 |
| 4681903 | Polyester polyols, a process for their production and their use in the isocyanate polyaddition process | Peter Haas, Hans-Ulrich Weber, Claus-Dieter Sommerfeld, Manfred Giersig | 1987-07-21 |
| 4623672 | Isocyanate addition products and a process for their production | Roland Kleinstuck | 1986-11-18 |
| 4621104 | Process for the production of liquid bromine-containing alkoxylation products | Manfred Dietrich, Manfred Schmidt, Klaus Konig | 1986-11-04 |
| 4575520 | Rigid, closed-cell, flame-resistant polyurethane foams | Manfred Kapps, Norbert Adam, Eckehard Weigand | 1986-03-11 |
| 4404294 | Nonflammable light foams containing urea and urethane groups in which a mono- and/or oligo-saccharide dissolved in water is reacted with a polyisocyanate in the presence of a polyol, a catalyst and a flameproofing agent | — | 1983-09-13 |
| 4310633 | Hexahydrotriazine carboxylates and the use thereof as catalysts in the production of polyisocyanurate plastics | Peter Haas, Johannes Blahak | 1982-01-12 |
| 4260754 | Hexahydrotriazine carboxylates and the use thereof as catalysts in the production of polyisocyanurate plastics | Peter Haas, Johannes Blahak | 1981-04-07 |
| 4246365 | Process for the production of plastics containing isocyanurate groups and urethane groups | Rudolf Merten, Werner Dietrich, Wolfgang Schmitz | 1981-01-20 |
| 4235976 | Use of phosphonates as trimerization catalysts for the production of polyisocyanurate synthetic resins | Peter Haas | 1980-11-25 |