Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6939933 | Process for polymerizing cationically polymerizable monomers | Robert N. Webb, David Yen-Lung Chung, Andrew B. Donnalley, Michael F. McDonald, Ralph Howard Schatz | 2005-09-06 |
| 6620898 | Production of polyisobutylene copolymers | Robert N. Webb, Michael F. McDonald, Ralph Howard Schatz | 2003-09-16 |
| 6444768 | Production of polyisobutylene copolymers | Robert N. Webb, Michael F. McDonald, Ralph Howard Schatz | 2002-09-03 |
| 6372858 | Solid nucleophilic reagent for conversion of benzylic halogen functionality on polymers to other functionalities | Chia S. Chee, Hsien-Chang Wang | 2002-04-16 |
| 6346571 | Thermoplastic blend containing engineering resin | Narayanaswami Dharmarajan, Robert C. Puydak, Hsien-Chang Wang, Thomas C. Yu, Donald R. Hazelton | 2002-02-12 |
| 6303691 | Impact modification of polyamides | Thomas C. Yu, Hsien-Chang Wang | 2001-10-16 |
| 6156810 | Solid nucleophilic reagent for conversion of benzylic halogen functionality on polymers to other functionalities | Chia S. Chee, Hsien-Chang Wang | 2000-12-05 |
| 6013727 | Thermoplastic blend containing engineering resin | Narayanaswami Dharmarajan, Robert C. Puydak, Hsien-Chang Wang, Thomas C. Yu, Donald R. Hazelton | 2000-01-11 |
| 5959049 | Process for selective bromination of para-alkylstyrene/isoolefin copolymers | Hsien-Chang Wang | 1999-09-28 |
| 5656694 | Interpolymer cures of blends comprising halogenated isoolefin/para-alkylstyrene elastomers and unsaturated elastomers | Jean M. J. Frechet, Dongming Li, Hsien-Chang Wang, Donald A. White | 1997-08-12 |
| 5654379 | Process for selective bromination of para-alkylstyrene/isoolefin copolymers | Hsien-Chang Wang | 1997-08-05 |
| 5548023 | Graft copolymers of para-alkylstyrene/isoolefin copolymers as blend compatibilizers | Hsien-Chang Wang, T-C. Chung, Anthony J. Dias, Joseph A. Olkusz | 1996-08-20 |
| 5548029 | Graft copolymers of para-alkylstyrene/isoolefin copolymers | Hsien-Chang Wang, T-C. Chung, Anthony J. Dias, Joseph A. Olkusz | 1996-08-20 |
| 5453465 | Process for preparing thermoplastic compositions | Thomas C. Yu, Hsien-Chang Wang | 1995-09-26 |
| 5430118 | Para-alkylstyrene/isoolefin copolymers having substantially homogeneous compositional distribution | Hsien-Chang Wang | 1995-07-04 |
| 5426167 | Para-alkylstyrene/isoolefin copolymers having substantially homogeneous compositional distribution | Hsien-Chang Wang | 1995-06-20 |
| 5369182 | Impact modification of polyamides | Thomas C. Yu, Hsien-Chang Wang | 1994-11-29 |
| 5286804 | Halogenation of star-branched butyl rubber with improved neutralization | Hsien-Chang Wang, Robert N. Webb, James V. Fusco, Hans F. Vanbrackle, Michael F. McDonald | 1994-02-15 |
| 5244961 | Thermoplastic compositions and process for preparing the same | Thomas C. Yu, Hsien-Chang Wang | 1993-09-14 |
| 5182333 | Production of rubbery isoolefin polymers | Hsien-Chang Wang, Debra C. Handy, James V. Fusco | 1993-01-26 |
| 5182350 | Ozone-resistant butyl elastomer | James V. Fusco, Hsien-Chang Wang | 1993-01-26 |
| 5162445 | Para-alkylstyrene/isoolefin copolymers and functionalized copolymers thereof | Hsien-Chang Wang, T-C. Chung, Anthony J. Dias, Joseph A. Olkusz | 1992-11-10 |
| 5071913 | Rubbery isoolefin polymers exhibiting improved processability | Hsien-Chang Wang, Debra C. Handy, James V. Fusco | 1991-12-10 |
| 5013793 | Dynamically cured thermoplastic olefin polymers and process for producing the same | Hsien-Chang Wang, Robert C. Puydak, Narayanaswami Dharmarajan | 1991-05-07 |
| 4780513 | Modified Lewis acid catalyzed polymerization | Ralph Howard Schatz | 1988-10-25 |