Issued Patents 1989
Showing 1–2 of 2 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 | Johannes M. Van Der Mark, Petrus G. Kooijmans | 1989-06-20 |
| 4816300 | Process for the preparation of carboxylated amide binders | Petrus G. Kooijmans, Arjan Sikking | 1989-03-28 |