Issued Patents 1989
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877843 | Selective hydrolysis of copolymers of para-acetoxy styrene and allyl esters of ethylenically unsaturated acids | — | 1989-10-31 |
| 4869994 | Photoresist compositions based on hydroxystyrene copolymers | Palaiyur S. Kalyanaraman | 1989-09-26 |
| 4868265 | Polyanhydride process from bis(trimethylsilyl) ester of dicarboxylic acid | — | 1989-09-19 |
| 4868274 | Polyanhydride from carboxy aryloxy alkanoic acid | Gordon Calundann | 1989-09-19 |
| 4857601 | Selective hydrolysis of copolymers of para-acetoxy styrene and dialkyl muconates or alkyl sorbates | — | 1989-08-15 |
| 4826891 | Radiation curable copolymers of p-acetoxystyrene with allyl esters of ethylenically unsaturated acids or alkadienes | — | 1989-05-02 |
| 4826890 | Radiation curable copolymers of p-acetoxystyrene and dialkyl muconates | — | 1989-05-02 |
| 4824758 | Photoresist compositions based on acetoxystyrene copolymers | Palaiyur S. Kalyanaraman | 1989-04-25 |
| 4814399 | Sulfoalkylation of polybenzimidazole | Michael J. Sansone, Robert W. Stackman | 1989-03-21 |