Location History:
- Corpus Christi, TX (US) (1987 - 1990)
- Carrollton, VA (US) (1989 - 1993)
Company Filing History:
11 out of 1,194 
1 out of 824 
1 out of 832,680 Years Active: 1987-1993
Title: **Innovative Contributions of Donna L. Keene in Polymer Chemistry**
Introduction
Donna L. Keene, an accomplished inventor based in Carrollton, VA, has made significant contributions in the field of polymer chemistry, particularly in the production of various poly(4-hydroxystyrene) and poly(4-acetoxystyrene) compounds. With a remarkable portfolio of 13 patents, her innovative methods and processes have pushed the boundaries of chemical engineering and manufacturing.
Latest Patents
Among her latest inventions, key patents include a comprehensive process for the production of poly(4-hydroxystyrene). This method involves the synthesis of 4-acetoxystyrene by heating 4-acetoxyphenylmethylcarbinol with an acid catalyst at temperatures ranging from approximately 85°C to 300°C, under varying pressure conditions (from 0.1 mm HgA to 760 mm HgA). The process also describes a solventless hydrogenation technique for 4-acetoxyacetophenone, resulting in the production of 4-acetoxyphenylmethylcarbinol. This compound can subsequently be dehydrated to yield 4-acetoxystyrene, which may then be polymerized to create poly(4-acetoxystyrene) and hydrolyzed to obtain poly(4-hydroxystyrene).
Career Highlights
Throughout her career, Donna has collaborated with leading organizations, including Hoechst Celanese Corporation and Celanese GmbH. Her work in these companies has allowed her to refine her innovative techniques and solidify her role as a key player in the development of advanced polymer materials.
Collaborations
In her professional journey, Donna has worked alongside notable coworkers such as Bakulesh N. Shah and Dung Q. Tran. Their collaborative efforts have played a vital role in enhancing the efficiency and scope of the research and production processes related to her patented inventions.
Conclusion
Donna L. Keene's contributions to polymer chemistry exemplify the impact of innovative thinking and teamwork in the development of new materials. With her impressive list of patents, she continues to inspire future generations of inventors and chemists, proving that creativity and scientific inquiry go hand in hand.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.