Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE32951 | Process for preparing epoxy resins having improved physical properties when cured using quaternary phosphonium catalysts | Ross C. Whiteside, Jr., Adolphus V. Gist | 1989-06-13 |
| 4742169 | Process for the preparation of halohydroxyalkyl carbamates and 2,3-epoxy carbamates | Marsha A. Paul | 1988-05-03 |
| 4613661 | Epoxy phosphate compositions | Horst G. Langer, Thomas P. Brady, Marsha A. Paul | 1986-09-23 |
| 4540823 | Tetrahydrocarbyl phosphonium salts | Joseph W. Hanafin | 1985-09-10 |
| 4496709 | Process for preparing epoxy resins employing a phosphonium trifluoroacetate catalyst | Marsha A. Paul, Adolphus V. Gist | 1985-01-29 |
| 4477645 | Immobilized epoxy advancement initiators | Joseph W. Hanafin | 1984-10-16 |
| 4438254 | Process for producing epoxy resins | Marsha A. Paul | 1984-03-20 |
| 4410596 | Process for preparing epoxy resins having improved physical properties when cured | Ross C. Whiteside, Jr., Adolphus V. Gist | 1983-10-18 |
| 4405766 | Phosphonium bicarbonate catalysts for promoting reaction of epoxides with carboxylic acids or anhydrides | James L. Bertram, Lawrence G. Duquette | 1983-09-20 |
| 4395574 | Phosphonium phenoxide catalysts for promoting reaction of epoxides with phenols and/or carboxylic acids | James L. Bertram | 1983-07-26 |
| 4370465 | Epoxy resins having improved physical properties when cured | Ross C. Whiteside, Jr., Adolphus V. Gist | 1983-01-25 |
| 4370461 | Organo phosphorus-containing compounds as catalysts for deblocking blocked isocyanates | Bruce L. Burton | 1983-01-25 |
| 4354028 | Piperazine derivatives | John C. Martin, Lawrence G. Duquette | 1982-10-12 |
| 4354015 | Phosphonium bicarbonate catalysts for promoting reaction of epoxides with phenols | Lawrence G. Duquette, James L. Bertram | 1982-10-12 |
| 4352918 | Process for preparing epoxy resins having improved physical properties when cured using quaternary phosphonium catalysts | Ross C. Whiteside, Jr., Adolphus V. Gist | 1982-10-05 |
| 4340761 | Preparation of phosphonium phenoxide salts | Wanda S. Smith | 1982-07-20 |
| 4329480 | Cyclic meta-sulfonium-phenoxide zwitterions | Donald L. Schmidt | 1982-05-11 |
| 4310708 | Phosphonium catalysts for hydroxyalkylation of phenols or thiophenols | Paul E. Strege | 1982-01-12 |
| 4302574 | Phosphonium phenoxide catalysts for promoting reacting of epoxides with phenols and/or carboxylic acids | James L. Bertram | 1981-11-24 |
| 4284573 | Preparation of glycidyl ethers | John F. Arnett | 1981-08-18 |
| 4266079 | Process for preparing tetrahydrocarbylphosphonium bicarbonate salts | Lawrence G. Duquette, John F. Arnett | 1981-05-05 |
| 4189543 | Catalyst for making polyurethanes | Lawrence G. Duquette, Philip W. McGraw | 1980-02-19 |