Willard Alexander

Title: Willard Alexander: Innovator in Polybenzoxazole and Polybenzothiazole Filaments

Introduction

Willard Alexander is a notable inventor based in Midland, MI (US). He has made significant contributions to the field of materials science, particularly in the development of advanced polymer filaments. His innovative work has led to the patenting of a unique process that enhances the properties of polybenzoxazole and polybenzothiazole.

Latest Patents

Willard Alexander holds a patent for a "Process for the preparation of polybenzoxazole and polybenzothiazole." This continuous process involves heating a polybenzazole or polybenzothiazole filament to a temperature between 100°C and 290°C while applying a tension of at least 3.5 grams per denier. The process is carried out at a line speed of at least 100 m/minute, ensuring that there is no prior or subsequent heating of the fiber to any temperature greater than 300°C. This innovative approach has been discovered to increase the tensile modulus of the filament without significantly decreasing its tensile strength.

Career Highlights

Willard Alexander is associated with Toyobo Co., Ltd., where he has been instrumental in advancing the company's research and development efforts in polymer technology. His expertise in the field has contributed to the company's reputation as a leader in innovative materials.

Collaborations

Throughout his career, Willard has collaborated with notable colleagues, including Michael E Mills and Timothy L Faley. These collaborations have fostered a productive environment for innovation and have led to significant advancements in their respective fields.

Conclusion

Willard Alexander's contributions to the development of polybenzoxazole and polybenzothiazole filaments exemplify the impact of innovative thinking in materials science. His patented process not only enhances the properties of these materials but also showcases the importance of collaboration in driving technological advancements.