Location History:
- Newark, DE (US) (1976 - 1978)
- Wilmington, DE (US) (1985 - 1995)
Company Filing History:
Years Active: 1976-1995
Title: The Innovations of Sang-Hak Hwang
Introduction
Sang-Hak Hwang is a notable inventor based in Newark, DE (US), recognized for his contributions to the field of materials science. He holds a total of six patents, showcasing his innovative approach to developing advanced materials for various applications.
Latest Patents
Among his latest patents is the "Aqueous size for fiber reinforced high temperature composites." This invention involves a stable aqueous size of ammonia-and/or amine-neutralized poly(amide-acid) derived from specific aromatic dianhydrides and aromatic diamines. Another significant patent is the "Nonwoven fabric for apparel insulating interliner." This composite nonwoven fabric is particularly suited for use as an insulating interliner in apparel. It comprises a batt of crimped polyester staple fibers and a nonwoven sheet of continuous polyester filaments, which are attached by a series of parallel seams. The fabric is designed to have a density of 15 to 24 kg/m³ and an insulating value of at least 7 CLO/(kg/m²).
Career Highlights
Sang-Hak Hwang is currently employed at E.I. DuPont de Nemours and Company, where he continues to innovate and develop new materials. His work has significantly impacted the industry, particularly in the realm of high-performance textiles.
Collaborations
He has collaborated with notable colleagues, including Rashmikant M Contractor and Thomas J Proffitt, Jr., contributing to a dynamic and innovative work environment.
Conclusion
Sang-Hak Hwang's contributions to materials science through his patents and collaborations highlight his role as a leading inventor in his field. His work continues to influence the development of advanced materials for various applications.