Location History:
- Rockville, MD (US) (1989 - 2005)
- Raleigh, NC (US) (2012 - 2016)
Company Filing History:
4 out of 4 
1 out of 1,440 
3 out of 832,891 Years Active: 1989-2016
Title: Walter J. Chappas: Innovator in Polymer Science
Introduction
Walter J. Chappas, based in Rockville, MD, stands as a prominent figure in the realm of polymer innovations. With a remarkable portfolio of seven patents, he has demonstrated a relentless pursuit of advanced materials that enhance various applications across industries.
Latest Patents
Among his latest contributions, Chappas has developed articles containing woven or non-woven ultra-high surface area macro polymeric fibers. This technology features winged fibers designed with a unique structure that includes a core surrounded by multiple lobes. These fibers form channels of one micron or less, enabling efficient capture and transport of gases, liquids, and particles. The versatility of these fibers allows them to be integrated into products such as wipes, absorbent pads, composite structures, and various filtration systems.
Another innovative patent focuses on composite filter media featuring high surface area fibers. The improved filter composite media integrates a winged-fiber layer that offers increased absorption and strength alongside a meltblown layer for enhanced filtration. The fiber is produced through a bicomponent extrusion process, incorporating a thermoplastic polymer and a dissolvable sheath. This advancement highlights the fiber's specific surface area of about 140,000 cm/g or higher, making a significant impact on filtration technologies.
Career Highlights
Chappas has been associated with Allasso Industries, Inc., where he has not only contributed to the company's innovation trajectory but also expanded his expertise within the polymer science domain. His work has led to significant advancements in the way materials are engineered for practical applications, particularly in filtration and absorption technologies.
Collaborations
Throughout his career, Chappas has worked alongside distinguished colleagues such as Behnam Pourdeyhimi and William L. McLaughlin. These collaborations have enriched his work and amplified the impact of his innovations in the industry.
Conclusion
Walter J. Chappas exemplifies the spirit of innovation in polymer science. His numerous patents and collaborative efforts underscore a commitment to advancing technology for practical use. As he continues to push the boundaries of material science, his contributions are likely to play a pivotal role in the development of a variety of applications that benefit society at large.