Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7718722 | Alkylthio- and aryl(heteroyl)thio-substituted p-phenylenediamines, their manufacture and their use in rubber | Otto W. Maender, Alan R. Katritzky, Herman Odens, Michael Voronkov | 2010-05-18 |
| 5374689 | Rubber compositions containing 2-pyrazine sulfenamides | Horng-Jau Lin, David J. Sikora | 1994-12-20 |
| 5260454 | Bis-pyrimidyl thiol sulfenimide compounds | — | 1993-11-09 |
| 5189174 | Heterocyclic thiol-based sulfenimide compounds | — | 1993-02-23 |
| 5079305 | Rubber compositions comprising sulfenimide accelerators | — | 1992-01-07 |
| 4895901 | Polymetic hindered amine light stabilizers | Chester E. Ramey, Ronald E. Thompson | 1990-01-23 |
| 4804717 | Polymeric hindered amine light stabilizers | Chester E. Ramey, Ronald E. Thompson | 1989-02-14 |
| 4448969 | Cyclic ether or carbonate alkylation products of 2,2,5,5-tetramethylimidazolidin-4-one and derivatives, their preparation, and their use as stabilizers for _synthetic polymers | Chester E. Ramey | 1984-05-15 |