Issued Patents All Time
Showing 51–75 of 79 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6255412 | Polymerization of a sticky polymer in the presence of a treated carbon black | Weidong Wang | 2001-07-03 |
| 6180738 | Production of a sticky polymer using an improved carbon black | Weidong Wang | 2001-01-30 |
| 6004677 | Gas phase production of polydienes with pre-activated nickel catalysts | Maria Apecetche, Minghui Zhang | 1999-12-21 |
| 6001478 | Resin particle produced by diene polymerization with rare earth and transition metal catalysts | Maria Apecetche, Minghui Zhang | 1999-12-14 |
| 5879805 | Gas phase polymerization of vinylpolybutadiene | Monika Brady | 1999-03-09 |
| 5733988 | Process for reducing polymer build-up in recycle lines and heat exchangers during polymerizations employing butadiene, isoprene, and/or styrene | Maria Apecetche, Bai Xinlai | 1998-03-31 |
| 5731381 | Termination of gas phase polymerizations of conjugated dienes, vinyl-substituted aromatic compounds and mixtures thereof | Maria Apecetche | 1998-03-24 |
| 5728782 | Gas phase anionic polymerization of dienes and vinyl-substituted aromatic compounds | Monika Brady, David Joseph Dovedytis | 1998-03-17 |
| 5616661 | Process for controlling particle growth during production of sticky polymers | Ronald S. Eisinger, Christopher Scott Hunnisett, Fathi David Hussein, Kiu H. Lee | 1997-04-01 |
| 5548040 | Process for passivation of a reactor after shutdown of alpha olefin polymerization processes | Fathi David Hussein, Daniel P. Zilker, Jr., Kiu H. Lee | 1996-08-20 |
| 5480850 | Ethylene/propylene copolymer rubbers | James W. Nicoletti, Sergey A. Vasnetsov | 1996-01-02 |
| 5442018 | Ethylene polymerization using a titanium and vanadium catalyst system in staged reactors | James W. Nicoletti, Frederick J. Karol, Arthur E. Marcinkowsky, Thomas E. Spriggs, Mark C. Hwu | 1995-08-15 |
| 5416053 | Homogenous polyethylenes and ethylene/propylene copolymers rubbers | Xinlai Bai | 1995-05-16 |
| 5371145 | High density, high molecular weight polyethylene | Paul T. Daniell, William D. Heitz, Thomas E. Spriggs, Thomas J. McNeil | 1994-12-06 |
| 5342907 | Ethylene/propylene copolymer rubbers | Fathi David Hussein, Kiu H. Lee, Daniel P. Zilker, Jr., James W. Nicoletti, Xinlai Bai | 1994-08-30 |
| 5332793 | Ethylene/propylene copolymer rubbers | — | 1994-07-26 |
| 5177042 | High activity vanadium-based catalyst | James W. Nicoletti | 1993-01-05 |
| 5102841 | Process for the production of polyethylene | Robert Brady, Yimsan Gau | 1992-04-07 |
| 5096869 | High activity vanadium-based catalyst | — | 1992-03-17 |
| 5071810 | High activity vanadium-based catalyst | — | 1991-12-10 |
| 5070057 | Simplified polyethylene catalyst system | Frederick J. Karol, Arthur E. Marcinkowsky | 1991-12-03 |
| 4988783 | Ethylene polymerization using supported vanadium catalyst | Debra L. Beran, Robert J. Jorgensen, Frederick J. Karol, Norma J. Maraschin, Arthur E. Marcinkowsky | 1991-01-29 |
| 4923938 | Catalyst for regulating the molecular weight distribution of ethylene polymers | Sun-Chueh Kao, Frederick J. Karol, Arthur E. Marcinkowsky, Mark G. Goode, Eugene H. Theobald | 1990-05-08 |
| 4892853 | Ethylene polymerization catalyst | Frederick J. Karol, Kiu H. Lee, Arthur E. Marcinkowsky | 1990-01-09 |
| 4861846 | Process for simultaneously dimerizing ethylene and copolymerizing ethylene with the dimerized product | Michael W. Chen, Frederick J. Karol | 1989-08-29 |