Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840979 | Process for preparing cationic coating compositions using ammonia adducts of epoxy resins which are further reacted with a cyclic anhydride | Roeland Van Iperen, Petrus G. Kooijmans | 1989-06-20 |