Company Filing History:
Years Active: 1976-1983
Title: The Innovations of Edwin L. Speakman
Introduction
Edwin L. Speakman is an accomplished inventor based in Clinton, Iowa, known for his significant contributions in the field of polymer chemistry. With a total of five patents to his name, Speakman has developed innovative solutions that have advanced the use of starch graft copolymers in various applications.
Latest Patents
Among his latest inventions, Speakman has patented a unique formulation titled "Stable Liquid, Amylopectin Starch Graft Copolymer Compositions." This invention focuses on creating stable, aqueous polymeric dispersions that are comprised of graft copolymers featuring at least one vinyl monomer and a derivatized, thinned amylopectin starch. The starch used in this formulation is primarily composed of amylopectin units like waxy maize starch. The compositional stability is ensured through a degree of substitution of at least 0.01 and an intrinsic viscosity of no less than 0.12 deciliters per gram. The resulting dispersions boast high solids contents of 25% by weight or more and remain stable over extended periods without excessive viscosity increases.
Another key invention by Speakman is titled "Stable, Liquid Starch Graft Copolymer Composition," which similarly discloses stable aqueous polymeric dispersions containing at least 25% solids, dry basis, of a starch graft copolymer. This innovation also incorporates a thinned and derivatized starch combined with a vinyl monomer, ensuring a degree of substitution of at least 0.05 and intrinsic viscosity equal to or greater than 0.12 deciliters per gram. Like his previous patent, this formulation remains stable during normal storage temperatures, enhancing its commercial viability.
Career Highlights
Edwin L. Speakman is associated with Standard Brands Incorporated, where he applies his expertise in polymer chemistry and formulation development. His work within the company plays a crucial role in advancing the understanding and applications of starch graft copolymers. Through his inventive process, he has contributed to the production and stability of polymeric dispersions, which are valuable in various industrial applications.
Collaborations
Throughout his career, Speakman has collaborated with talented colleagues, including Adrian P. Kightlinger and Grant T. Van Duzee. These collaborations have fostered an environment of innovation, allowing them to push the boundaries of current polymer technologies.
Conclusion
Edwin L. Speakman’s innovative contributions to polymer chemistry, particularly in the realm of starch graft copolymers, showcase his dedication to enhancing the stability and usability of polymeric materials. His patents not only demonstrate technical ingenuity but also represent significant advancements that could lead to new applications across various industries.