Issued Patents All Time
Showing 26–50 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851567 | N,N'-bis(5-isocyanatonaphthyl)urea, a process for its production, and its use | Andreas Ruckes, Gerhard Grogler, Heinrich Hess | 1989-07-25 |
| 4847321 | Process for the production of thermosetting one-component polyurethane-polyurea systems | Heinrich Hess, Gerhard Grogler, Manfred Bock, Werner Clarenz | 1989-07-11 |
| 4843107 | Process for the preparation of polyamines and their use for the preparation of polyurethanes | Andreas Ruckes, Werner Rasshofer, Klaus Konig | 1989-06-27 |
| 4843108 | Process for the production of polyamines | Andreas Ruckes, Werner Rasshofer, Klaus Konig | 1989-06-27 |
| 4835224 | Process for the preparation of polyamines and their use for the production of polyurethanes | Andreas Ruckes, Werner Rasshofer, Klaus Konig | 1989-05-30 |
| 4801623 | Process for the production of a thixotropic agent, especially for storable reactive polyurethane systems | Heinrich Hess, Gerhard Grogler | 1989-01-31 |
| 4797320 | Composite plastic moldings and a process for their production | Gerhard Grogler, Heinrich Hess, Hermann Schafer, Werner Rasshofer | 1989-01-10 |
| 4786655 | Process for the preparation of polyurethanes containing uretdione rings formed in the presence of a bismuth salt of an organic carboxylic acid | Gerhard Grogler, Heinrich Hess | 1988-11-22 |
| 4766239 | Process for the in situ production of urea group-containing isocyanates in polyols, dispersions or solutions resulting therefrom and use thereof | Gerhard Grogler, Heinrich Hess | 1988-08-23 |
| 4757105 | Process for the production of finely divided polyisocyanates containing urea groups | Gerhard Grogler, Heinrich Hess, Klaus Konig | 1988-07-12 |
| 4734532 | Process for the preparation of 4,4'-dinitrodibenzyls | Gerhard Grogler, Klaus Konig, Manfred Schmidt | 1988-03-29 |
| 4732957 | Polyurethane-based reactive mass and its use for the production of coatings | Peter Schuster, Rudolf Punessen, Karl Nutzel, Werner Rasshofer | 1988-03-22 |
| 4720545 | Process for the preparation of complexes of one mol of dimerized or low-oligodimerized 4,4'-diisocyanatodiphenylmethane and two to three mol of 4,4'-diisocyanatodiphenylmethane, corresponding complexes, and their use for polyurethane production | Gerhard Grogler, Heinrich Hess | 1988-01-19 |
| 4716182 | Cold setting compositions, a process for the production thereof and the use thereof for polyurethane production | Heinrich Hess, Gerhard Grogler | 1987-12-29 |
| 4680367 | Process for the production of urea group-containing polyisocyanates | Gerhard Grogler, Heinrich Hess, Klaus Konig | 1987-07-14 |
| 4667008 | Process for the production of solid polyisocyanates of retarded reactivity, polymer-coated, finely divided polyisocyanates and their use | Gerhard Grogler, Heinrich Hess | 1987-05-19 |
| 4665177 | Tetrahydropyrimidines, a process for their production and their use as catalysts in the production of polyurethane plastics | Werner Rasshofer, Gerhard Grogler | 1987-05-12 |
| 4663415 | Process for the preparation of stabilized polyamines, stabilized polyamines with retarded reactivity and their use for polyurethane production | Gerhard Grogler, Heinrich Hess, Werner Rasshofer | 1987-05-05 |
| 4623686 | Storage stable compositions based on polyvinyl chloride plastisols and stabilized isocyanates | Helmut Hurnik, Gerhard Grogler, Heinrich Hess | 1986-11-18 |
| 4619985 | Process for the production of deactivated suspensions of finely-divided polyisocyanates in relatively high molecular weight compounds, deactivated suspensions and use thereof for the production of polyurethanes | Heinrich Hess, Gerhard Grogler, James-Michael Barnes | 1986-10-28 |
| 4605756 | Process for the in situ production of urea group-containing isocyanates in polyols | Gerhard Grogler, Heinrich Hess | 1986-08-12 |
| 4595445 | Adhesive joining of surfaces using thermosetting polyurethane urea reactive adhesive compositions | Rudolf Hombach, Manfred Dollhausen, Heinrich Hess, Gerhard Grogler, Artur Reischl | 1986-06-17 |
| 4587275 | Process for the preparation of polyurethane elastomers | Holger Meyborg, Gerhard Grogler, Jurgen Schwindt | 1986-05-06 |
| 4581388 | Process for the production of urethane-modified polyisocyanate using an oxyalkylated bisphenol | Werner Rasshofer, Reiner Paul, Klaus Seel, Otto Ganster | 1986-04-08 |
| 4569982 | Process for the production of polyurea-elastomers and corresponding elastomers having an idealized segment structure | Gerhard Grogler, Heinrich Hess, Werner Rasshofer | 1986-02-11 |