Oscar R Buehler

Title: Oscar R. Buehler and the Purification of Hexamethylenediamine.

Introduction

Oscar R. Buehler was an inventor associated with Newark, Delaware, and E. I. du Pont de Nemours and Company. His patent work addressed the purification of hexamethylenediamine, a material used in producing polyamide fibers.

Latest Patents

Buehler is credited with 1 patent, titled “Process for Purifying Hexamethylenediamine.” The process dissolves ammonia in crude molten hexamethylenediamine under pressure, then directs the solution into a reduced-pressure zone. As the ammonia vaporizes, some of the hexamethylenediamine crystallizes. The resulting crystals are washed with essentially pure hexamethylenediamine, producing purified material suitable for conversion into polyamide fibers.

Career Highlights

Buehler’s documented invention reflects industrial chemical-process innovation at E. I. du Pont de Nemours and Company. His patented method uses pressure changes, ammonia vaporization, crystallization, and washing to purify hexamethylenediamine.

Collaborations

Buehler’s coworker was Harold F. Porter. Their association connects Buehler’s work to the broader technical environment at DuPont.

Conclusion

Oscar R. Buehler’s patent describes a practical purification process for hexamethylenediamine, supporting its use in the manufacture of polyamide fibers.