Company Filing History:
22 out of 2,036 
2 out of 832,843 Years Active: 1992-2003
Title: **Innovative Contributions of John A. Hodan in Polymer Science**
Introduction
John A. Hodan, based in Arden, North Carolina, is a prolific inventor known for his significant contributions to the field of polymer science. With a remarkable portfolio of 24 patents, Hodan has made substantial advancements in polymerization techniques, particularly in the development of melt-spinning processes for polycaprolactam fibers.
Latest Patents
Among his latest innovations is a patented process focused on continuous polymerization and direct fiber spinning. This invention details a method wherein a reaction mixture is created by combining two streams of liquid caprolactam, each containing a polymerization initiator and co-initiator. The mixture undergoes an anionic polymerization process within a well-defined reactor zone, resulting in molten polycaprolactam. This molten polymer is then directly transferred through a spinneret without any intermediate solidification, efficiently forming high-quality fibers. The system encompasses a mixer and a specialized reactor and melt-spinning apparatus, which work in tandem to control critical parameters like residence time and temperature to optimize the anionic polymerization reaction.
Career Highlights
Hodan's career includes significant associations with renowned companies in the chemical industry, notably BASF Corporation. His expertise and innovative methodologies have enabled advancements in fiber production that enhance the performance and application of polycaprolactam.
Collaborations
Throughout his career, John A. Hodan has collaborated with notable professionals, including Otto M. Ilg and Matthew B. Hoyt. These collaborations have likely enriched his research and development initiatives, fostering a collaborative environment conducive to groundbreaking innovations.
Conclusion
John A. Hodan's extensive contributions to polymer science, exemplified by his 24 patents, underscore his role as a key innovator in the field. His latest advancements in continuous polymerization and direct fiber spinning not only highlight his technical acumen but also mark a significant stride forward in the manufacture of high-performance fibers, paving the way for future innovations.