Company Filing History:
Years Active: 1994
Title: John H. Herold II: Innovator in Polyamide Spinning Technology
Introduction
John H. Herold II is a notable inventor based in Hendersonville, TN (US). He has made significant contributions to the field of polymer technology, particularly in the spinning of polyamides. His innovative approach has led to advancements in the manufacturing processes of synthetic fibers.
Latest Patents
Herold holds a patent for "Aqueous-quench spinning of polyamides." This patent describes a method where molten polyamide filaments are extruded from spinneret capillaries through a gas-filled gap and into a quench bath containing a heated aqueous liquid. The design of the bath includes a nozzle that defines a vertically disposed cylindrical passageway, with its entrance located below the surface of the bath. The filaments are converged into a bundle at the entrance and withdrawn from the exit of the passageway at a withdrawal speed ranging from about 1500 to about 3500 meters per minute. The extrusion process is carefully controlled, ensuring that the jet velocity in the spinneret capillaries is between 2 and 10% of the withdrawal speed of the filament from the exit of the nozzle passageway. This innovative technique enhances the efficiency and quality of polyamide production.
Career Highlights
John H. Herold II is associated with E.I. DuPont de Nemours and Company, a leading organization in the field of materials science and chemical manufacturing. His work at DuPont has allowed him to apply his expertise in polymer technology to real-world applications, contributing to the company's reputation for innovation.
Collaborations
Herold has collaborated with various professionals in his field, including his coworker Henry Kobsa. Their combined efforts have furthered the development of advanced spinning technologies and improved manufacturing processes.
Conclusion
John H. Herold II is a distinguished inventor whose work in polyamide spinning technology has made a significant impact on the industry. His innovative patent and contributions to E.I. DuPont de Nemours and Company highlight his role as a key figure in advancing polymer manufacturing techniques.