John L Sands

Title: The Innovations of John L Sands

Introduction

John L Sands is a notable inventor based in West Lafayette, IN (US). He holds a total of 8 patents that showcase his contributions to the field of chemistry and materials science. His work primarily focuses on the purification processes of brominated compounds, which are essential in various industrial applications.

Latest Patents

One of Sands' latest patents is a process for purifying brominated polystyrene. This invention relates to a method that effectively reduces or removes contained aliphatic bromine and free bromine from brominated styrenic homo-polymers and co-polymers. The purification process also addresses the removal of occluded inorganic halide impurities, which can adversely affect the thermal aging and stability of final resin formulations. Another significant patent involves the production of purified brominated aromatic compounds. This process allows for the extraction of highly purified compounds such as decabromodiphenyl ether and pentabromophenol by grinding the crude brominated product and heating it to remove impurities.

Career Highlights

Throughout his career, John L Sands has worked with prominent companies such as Great Lakes Chemical Corporation and Eli Lilly and Company. His experience in these organizations has contributed to his expertise in chemical processes and innovations.

Collaborations

Sands has collaborated with notable colleagues, including Charles J Paget, Jr and Rastko I Mamuzic. These partnerships have likely enhanced his research and development efforts in the field.

Conclusion

John L Sands is a distinguished inventor whose work in the purification of brominated compounds has made a significant impact in the industry. His innovative processes continue to influence the development of materials used in various applications.