Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9527958 | Process for purification of polyether carbonate polyols | Peter Uthe, Stephen Bailey | 2016-12-27 |
| 6383966 | Method for making a heterogeneous epoxidation catalyst | Yuan-Zhang Han, Edrick Morales, Kevin M. Carroll | 2002-05-07 |
| 6114552 | Heterogeneous epoxidation catalyst | Yuan-Zhang Han, Edrick Morales, Kevin M. Carroll | 2000-09-05 |
| 6011162 | Epoxidation process using improved heterogeneous catalyst composition | Yuan-Zhang Han, Kevin M. Carroll, Edrick Morales | 2000-01-04 |
| 5801290 | Process for making poly(thioether ether)s from diallyl ether and dithiols | Gangfeng Cai | 1998-09-01 |
| 5741884 | Process for making poly(thioether ether)s from diallyl ether and dithiols | Gangfeng Cai | 1998-04-21 |
| 5659089 | Process for making poly(2-methyl-1,3-propanediol) | Gangfeng Cai, Carl J. Sullivan | 1997-08-19 |
| 5552486 | Polymers from propoxylated allyl alcohol | Shao-Hua Guo | 1996-09-03 |
| 5451652 | Polymers from propoxylated allyl alcohol | Shao-Hua Guo | 1995-09-19 |
| 5420216 | Process for making allyl polymers and copolymers | Shao-Hua Guo | 1995-05-30 |
| 5358984 | Polymer polyol dispersants from polymers containing anhydride groups | John E. Hayes | 1994-10-25 |
| 5359019 | Use of polyethylenically unsaturated monomers in polymers polyol dispersants | John E. Hayes | 1994-10-25 |
| 5321077 | Polymer polyol composition containing a grafted polyol-polyacrylate dispersant | John E. Hayes | 1994-06-14 |
| 5250581 | Polymer polyols containing halogenated aromatic monomers | John E. Hayes, Philippe C. Motte | 1993-10-05 |
| 5225481 | Polyol polyacrylate dispersants | John E. Hayes | 1993-07-06 |
| 5210283 | Synthesis of tetrahydrofuran polymers using calcined silica-alumina or beaching earth catalysts | Andrew P. Kahn, Gangfeng Cai | 1993-05-11 |
| 5208385 | Preparation of tetrahydrofuran polymers having a narrow molecular weight distribution using an amorphous silica-alumina catalyst | Andrew P. Kahn, Rangasamy Pitchai | 1993-05-04 |
| 5194493 | Polymer polyol composition containing a grafted polyol-polyacrylate dispersant | John E. Hayes | 1993-03-16 |
| 5070141 | Polyacrylate graft-polyol dispersants | John E. Hayes | 1991-12-03 |
| 5059641 | Epoxy modified polyols as dispersants for high styrene, high solids content polymer polyols | John E. Hayes | 1991-10-22 |
| 5021506 | Polyol polyacrylate dispersants | John E. Hayes | 1991-06-04 |
| 4929677 | Acetophenone based bisphenol polyarylate resins | Barry D. Dean | 1990-05-29 |
| 4912081 | Boron-promoted reducible metal oxides | John A. Sofranko, C. Andrew Jones | 1990-03-27 |
| 4891395 | High styrene content, stable polymer using epoxy resin-modified polyols as dispersants | John E. Hayes | 1990-01-02 |
| 4861936 | Boron-promoted reducible metal oxides and methods of their use | John A. Sofranko, C. Andrew Jones | 1989-08-29 |