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This profile was last updated on 5/10/02  and contains information from public web pages.

Dr. John A. Ewen

Wrong Dr. John A. Ewen?
 
Background

Employment History

  • President Bush Selects Houston Chemist
    Nation
  • President
    Catalyst Research Corporation
  • Chemist
    Caribbean Icons
  • Catalyst Chemist
    Exxon Chemical Company
  • Chemical Research Chemist
    Exxon Chemical Company

Education

  • Ph.D. , chemistry
    Tulane University
28 Total References
Web References
Today's News
www.prnewswire.com, 10 May 2002 [cached]
President Bush Selects Houston Chemist John A. Ewen for Nation's Highest Technology Award
WASHINGTON, May 9 /PRNewswire/ -- President George W. Bush today announced he would present the United States' highest award for technological innovation and achievement, the National Medal of Technology, to Dr. John A. Ewen of Houston for his groundbreaking work in the field of plastics.The President will present medals for scientific and technological accomplishment to Dr. Ewen and other recipients at a White House ceremony in June.
Ewen, 57, is president of Catalyst Research Corporation in Houston, Texas and a consultant for Basell Corporation of The Netherlands.He started his career at Exxon Chemical Company, where he first discovered the principles of new chemical catalysts known as "metallocenes".What started in the laboratory, as an academic curiosity, today is a multi-billion industry growing at a rate of 30 to 40 percent annually.
Dr. Ewen's award citation credits him "for his basic discoveries and inventions in the field of metallocene catalysis which have revolutionized the production of polyethylene and polypropylene plastics, thereby enhancing American leadership and stimulating the growth of the entire industry."
"I am deeply honored to receive this recognition from the President of the United States," Dr. Ewen said."It is gratifying to realize the benefit that has resulted in our daily lives as a result of metallocene technology -- creating thousands of jobs worldwide and enhancing everyday items such as golf balls, medical IV bags, CD oysters, food wrapping, luggage and automobile parts, clothing, and more."
The National Medal of Technology recognizes men and women who embody the spirit of American innovation and have advanced the nation's global competitiveness.It was established by Congress in 1980 and is administered by the Department of Commerce.Including this year's laureates, this honor has been bestowed on 124 individuals and 12 companies.More information about the National Medal of Technology can be found at http://www.ta.doc.gov/Medal /.
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Ewen was born in Kingston, Jamaica, studied at Monroe and Stanstead Colleges, and graduated from the University of the West Indies with First Class Honors in 1972.He emigrated the United States in 1973, and received his Inorganic Chemistry doctorate in 1979 from Tulane University in New Orleans, Louisiana -- where he studied under Dr. Donald J. Darensbourg.At Exxon, and later at American Petrofina, Ewen's studies led to the "Ewen symmetry rules" -- the basis for producing plastic fibers with extraordinary tensile strength, waterproof and moisture-retentive coatings, and a diverse range of items that transformed the polypropylene industry.His more recent consulting work with Basell yielded discoveries of a more advanced class of polypropylene catalysts known as "heterocenes."
NIHERST: Caribbean Icons in STI
www.caribbean-icons.org, 26 April 2011 [cached]
John Ewen Chemist NIHERST: Caribbean Icons in STI
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John Ewen
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- Dr. John Ewen
Dr. John Ewen received the National Medal of Technology from the President of the
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Dr. John Ewen received the National Medal of Technology from the President of the United States, Mr. George Bush in 2002.
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Dr. Ewen also developed an oxygen permeable bag, which enables salads to remain crisp without refrigeration, so they can be stored on a shelf for longer periods of time. With over 49 patents and 29 refereed publications, Dr. Ewen has revitalised the plastics industry globally making it the lucrative industry it is today. His success stems from "a love for chemistry, a love for doing research and all credit to the metallocenes."
A young John Ew en
Dr. Ewen was born in Kingston Jamaica in 1945.
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Ewen developed his passion for chemistry when he went to the University of the West Indies, Mona.
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Dr. Ewen retired as President of Catalyst Research Corporation but still works as a consultant. His current research is on a new group of catalysts known as heterocines.
He enjoys playing golf, fishing and reading. His love for reading has helped to motivate him to achieve great things. He says that the success of his career as a catalyst chemist is due to "hard work, long hours and fighting many battles. He tells young persons that "research is the most exciting and interesting way to make a living, and one must focus on the needs of society especially in the Caribbean to make an impact. He adds "research is highly rewarding and one can have a very satisfying life if you enjoy what you do."
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Interview with Dr. John Ewen.
Ewen, J. A (1997) "New Chemical Tools to Create Plastics. Scientific American 276(5), 86-91.
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An interview with Dr. John A. Ewen
NIHERST: Caribbean Icons in STI
www.caribbean-icons.org, 26 April 2011 [cached]
John Ewen Chemist
resume
www.johnaewen.com [cached]
Dr. John A. Ewen, Ph.D.
544 Via Verona, Deerfield Beach, Fl 33442
Tel. 954-427-9257 Fax.954-596-1790 Cell: 832-642-2013
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Ewen; John A.; Elder; Michael J.; Jones; Robert L. (Basell Technology Company.) US 6,635,779 (2003).
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Ewen; John A.; Elder; Michael J.; Jones; Robert L. (Basell Technology Company.) US 6,444,833 (2002).
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Ewen; John A.; Strozier; Robert W.; Jones, Jr.; Robert L.; Elder; Michael J. (Montell Technology Company.) US 6,403,772 (2002).
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Ewen; John A. (Fina Technology, Inc.) US 6,369,175 (2002).
5. "Process for making silicon bridged metallocene compounds and metallocene catalysts."Ewen; John A. (Fina Technology, Inc.) US 6,344,577 (2002).
6. "Process and catalyst for producing isotactic polyolefins."Ewen; John A.; Elder; Michael J.; Reddy; B. Raghava. (Fina Technology, Inc.) US 6,262,199 (2001).
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Ewen; John A. (Montell Technology Company.) US 6,252,019 (2001).
8. "Syndiotactic Polypropylene."Razavi; Abbas; Ewen; John A. (Fina Technology, Inc.) US 6,184,326 (2001).
9. "Stereospecific metallocene catalysts with stereolocking .alpha.-cp substituents."Ewen; John A. US 6,180,732 (2001).
10. "Process for polymerizing tactioselective polyolefins in condensed phase using titanocenes."Ewen; John A. US 6,160,072 (2001).
11. "Process for polymerization of olefins with silicon bridged metallocene catalyst systems."Ewen; John A. (Fina Technology, Inc. ) US 6,117,957 (2000).
12. "Open-pentadienyl metallocene ligands, polymerization catalysts/catalyst precursors and polymers therefrom."Ewen; John A.; Strozier; Robert W. (Montell Technology Company.) US 6,069,237 (2000).
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Ewen; John A.; Elder; Michael J. (Fina Technology, Inc. ) US 5,883,202 (1999).
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Ewen; John A. (Fina Technology, Inc. ) US 5,846,896 (1998).
15. "Polymerization of alpha-olefins with cationic metallocene catalysts based on organoaluminum anions."Elder; Michael J.; Ewen; John A. (Fina Technology, Inc. ) US 5,807,939 (1998).
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Elder; Michael J.; Ewen; John A. (Fina Technology, Inc.) US 5,763,549 (1998).
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Ewen; John A.; Reddy; B. R.; Elder; Michael J. (Fina Technology, Inc.) US 5,710,222 (1998).
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Ewen; John A.; Reddy; B. R.; Elder; Michael J. (Fina Technology, Inc.) US 5,688,735 (1997).
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Ewen; John A.; Elder; Michael J. (Fina Technology, Inc.) US 5,663,249 (1997).
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20. "Catalyst compounds for olefin polymerization" Welborn, Jr.; Howard C.; Ewen; John A. (Exxon Chemical Patents Inc.) US 5,633,394 (1997).
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Ewen; John A. (Montell Technology Company.) US 5,631,202 (1997).
22. "Process and catalyst for polyolefin density and molecular weight control."Ewen; John A.; Welborn, Jr.; Howard C. (Exxon Chemical Patents Inc.) US 5,580,939 (1996).
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Ewen; John A.; Razavi; Abbas (Fina Technology, Inc.) US 5,476,914 (1995).
24. "Metallocene catalysts with lewis acids and aluminum alkyls."Ewen; John A.; Elder; Michael J. (Fina Technology, Inc.) US 5,561,092 (1996).
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Ewen; John A. US 5,459,117 (1995).
26. "Process and catalyst for producing isotactic polyolefins."Ewen; John A.; Elder; Michael J. (Fina Technology, Inc.) US 5,416,228 (1995).
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27. "Process for using metallocene catalysts in a continuous reactor system" Ewen; John A.; Malbari; Shabbir A. (Fina Technology, Inc.) US 5,393,851 (1995).
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Ewen; John A.; Elder; Michael J. (Fina Technology, Inc.) US 5,387,568 (1995).
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Razavi; Abbas; Ewen; John A. (Fina Technology, Inc.) US 5,334,677 (1994).
30. "Process and catalyst for polyolefin density and molecular weight control."Welborn, Jr.; Howard C.; Ewen; John A. (Exxon Chemical Patents Inc.) US 5,324,800 (1994).
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Elder; Michael J.; Razavi; Abbas; Ewen; John A. (Fina Technology, Inc.) US 5,225,500 (1993).
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Elder; Michael J.; Razavi; Abbas; Ewen; John A. (Fina Technology, Inc.) US 5,155,080 (1992).
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Ewen; John A.; Bitzer; Alan H.; Gressett; David; Hummel; Herbert G. (Fina Technology, Inc.) US 5,122,583 (1992).
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Ewen; John A. (Fina Technology, Inc.) US 5,066,738 (1991).
35. "Catalyst for producing hemiisotactic polypropylene."Ewen; John A. (Fina Technology, Inc.) US 5,036,034 (1991).
36. "Catalyst systems for producing polyolefins having a broad molecular weight distribution."Ewen; John A. (Fina Technology, Inc.) US 4,975,403 (1990).
37. "Process and catalyst for producing reactor blend polyolefins."Ewen; John A.; Welborn, Jr.; Howard C. (Exxon Research & Engineering Company.) US 4,937,299 (1990).
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Ewen; John A.; Welborn, Jr.; Howard C. (Exxon Research & Engineering Company.) US 4,935,474 (1990).
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Ewen; John A. (Fina Technology, Inc.) US 4,927,797 (1990)
40. "Process and catalyst for producing syndiotactic polyolefins."Ewen; John A.; Razavi; Abbas (Fina Technology, Inc.) US 4,892,851 (1990).
41. "Hafnium metallocene catalyst for the polymerization of olefins."Ewen; John A. (Fina Technology, Inc.) US 4,794,096 (1988).
42. "Catalyst pretreatment process."Ewen; John A.; Bitzer; Alan H. (Cosden Technology, Inc.) US 4,767,735 (1988).
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Ewen; John A. (Exxon Research & Engineering Co.) US 4,522,982 (1985).
44. "Heterocyclic metallocenes, polymerization catalysts, and their use."Ewen; J.A.; Elder, M.J.; Jones; R.L.; Dubitsky; Y.A. Int.
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Ewen; J. A.; Elder; M. J. (Fina Technology, Inc.) Eur.Patent Appl.0,426,637 (1991).
46. "Catalyst System for Polymerization of Olefins: Comprises a Metallocene, an Aluminum Alkyl, and Tris(pentafluorophenyl)borate."(Fina Technology, Inc.) Ewen; J. A.; Elder; M. J. Canadian Patent 2,027,145 (2002) or Eur.Patent Appl.0,427,697 (1991).
47. "High Efficiency Olefin Polymerizations with Monoalkyl Metallocene Cations and Aluminum Alkyls."
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Ewen and M. J. Elder, (Fina Technology, Inc.) Eur.Patent Appl.0,426,638 (1991).
48. "Process and Catalyst for Producing Polyethylene Having a Broad Molecular Weight Distribution; Coordination Catalysts of Ti and Zr Metallocenes."(Exxon Research & Engineering Co.) J. A. Ewen and H. C. Welborn, US 4,530,914 (1985).
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Welborn; H. C.; Ewen, John A. ((Exxon Chemical Patents Inc.) Canadian Patent 1,268,753 (1990).
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1. "Chiral Ansa Metallocenes with Cp Ring-Fused to Thiophenes and Pyrroles: Syntheses, Crystal Structures, and Isotactic Polypropylene Catalysts," Ewen; J. A.; Elder; M. J.; Jones, R. L.; Rheingold; A. L.; Liable-Sands; L. M.; Sommer; R. D. J. Am.Chem.Soc.; 123; 4763-4773. (2001).
2. "Metallocene Polymerization Catalysts: Past, Present, and Future."
Chemicals Purchase - March 2001
www.indianpurchase.com, 6 Mar 2001 [cached]
--By John E Ewen
Alchemists of medieval times tried to convert lead into gold.Today's chemists know that quest is a lost cause, but many of us still earn our living discovering how to convert inexpensive raw materials into valuable products.The modern equivalent of the alchemist's magical potion is a catalyst-a substance that initiates a desirable chemical reaction or speeds up a reaction that would otherwise be too slow to be economical.The impact on society of this latter-day magic can hardly be overestimated.
Catalysts have made possible-among other things-the development of several modern plastics.
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John A. Ewen earned a Ph.D. in chemistry at Tulane University in 1979.He was a catalyst chemist for Exxon Chemical Company in Baytown, Tex., from 1980 to 1984.The following year he joined Fina Oil and Chemical in Deer Park, Tex., to research production of polypropylene and the chemistry of zirconium-based catalysts.Since 1991 Ewen has been president of Catalyst Research Corporation in Houston, which advises companies on commercial aspects of catalysis.
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