Company Filing History:
Years Active: 1982-2018
Title: Innovations by David D Hawn in Composite Polyamide Membrane Technology
Introduction
David D Hawn, an accomplished inventor based in Midland, MI, has made significant contributions to the field of materials science through his innovative work on composite polyamide membranes. With a total of seven patents to his name, Hawn's inventions reflect his dedication to advancing technology and improving industrial processes.
Latest Patents
Among Hawn's latest inventions is a novel composite polyamide membrane that features an azo content and high acid content. This thin film composite polyamide membrane is characterized by possessing an azo content of 0.40% to 1.00%, measured by pyrolysis gas chromatography, and a dissociated carboxylate content of at least 0.40 mol/kg as assessed by RBS at pH 9.5. Additionally, he has developed a comprehensive method for creating composite polyamide membranes, which involves applying a polyfunctional amine monomer and a polyfunctional acyl halide monomer to a porous support. The method includes interfacial polymerization in the presence of a tri-hydrocarbyl phosphate compound, enhancing the efficiency and performance of the resulting membranes.
Career Highlights
Hawn has worked with leading organizations in the chemical industry, including Dow Global Technologies LLC and The Dow Chemical Company. His career has been marked by a commitment to research and development, leading to several patent applications that reflect his expertise in membrane technology.
Collaborations
Throughout his career, David D Hawn has collaborated with notable colleagues such as Abhishek Roy and Robert C Cieslinski. These partnerships have likely played a pivotal role in his innovative work, fostering an environment of shared ideas and collaboration that enhance research outcomes.
Conclusion
David D Hawn's contributions to the field of composite polyamide membranes are significant and impactful. His continued innovation in this area indicates a strong future for advancements that may benefit various industries, from filtration technology to chemical processing. His work not only reflects his personal achievements but also adds to the collective knowledge and capabilities within the material sciences sector.