Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868246 | Polymer bound UV stabilizers | Terry N. Myers | 1989-09-19 |
| 4866136 | Process for producing polymer bound hindered amine light stabilizers | — | 1989-09-12 |
| 4863999 | Multipurpose polymer bound stabilizers | Terry N. Myers | 1989-09-05 |
| 4857596 | Polymer bound antioxidant stabilizers | Terry N. Myers | 1989-08-15 |
| 4857595 | Polymer bound hindered amine light stabilizers | Robert T. Kazmierzak | 1989-08-15 |
| 4831096 | Process of bulk polymerization of styrene using azoalkane mixtures containing unsymmetrical azoalkanes | — | 1989-05-16 |
| 4824884 | Cyclic anhydride derivatives of hydrazide functionalized hindered amine light stabilizers | Robert T. Kazmierczak | 1989-04-25 |
| 4801749 | Phenolic antioxidant hydrazides | Robert T. Kazmierczak, Jerome Wicher | 1989-01-31 |