David R Near

Title: David R Near: Innovator in Sulfur Trioxide Reagent Generation

Introduction

David R Near is a notable inventor based in Midland, MI (US), recognized for his contributions to chemical processes. He holds two patents that showcase his innovative approach to generating sulfur trioxide reagents and enhancing the thermal stability of carbonate polymers.

Latest Patents

One of his latest patents is focused on a process for the generation of sulfur trioxide reagent. This invention provides a method for generating a reagent of sulfur trioxide in a carrier. The process involves introducing a source of sulfur trioxide, a carrier, and oleum into a reagent generator. These components are then contacted to produce a reagent of sulfur trioxide in the carrier. The invention ensures that separate oleum and sulfur trioxide in carrier phases are formed, allowing for the removal of oleum from the reagent generator. The resulting sulfur trioxide in carrier reagent is ready for use, particularly in treating surfaces of polymeric resin materials, such as medical devices made from various polymeric resins. The carrier can be either a liquid halocarbon solution or an inert gas.

Another significant patent by David R Near involves thermally stable carbonate polymers. This innovation focuses on preparing carbonate polymers with increased thermal stability by incorporating an oligomer into the polymer chain. The oligomer has a specific formula that includes the divalent residue of a dihydric phenol or a dihydric polynuclear phenol.

Career Highlights

David R Near is associated with The Dow Chemical Company, where he has made significant strides in chemical innovation. His work has contributed to advancements in the field of polymer chemistry and reagent generation.

Collaborations

Throughout his career, David has collaborated with esteemed colleagues, including Wilhelm E Walles and Donald L Tomkinson. These collaborations have further enriched his research and development efforts.

Conclusion

David R Near's innovative work in sulfur trioxide reagent generation and polymer chemistry highlights his significant contributions to the field. His patents reflect a commitment to advancing chemical processes and improving material properties.