Location History:
- Evansville, IN (US) (1983 - 1987)
- Pittsfield, MA (US) (1990)
Company Filing History:
Years Active: 1983-1990
Title: **The Innovator Leonard R. Hepp from Evansville, IN**
Introduction
Leonard R. Hepp is a remarkable inventor based in Evansville, Indiana, who has made significant contributions to the field of polymer chemistry. With a total of seven patents to his name, Hepp has developed innovative processes that advance the properties of polyester materials, particularly in relation to their melt viscosity and strength.
Latest Patents
His latest patents focus on the preparation of linear polyester-polyepoxide reaction products through a unique two-step method. This process allows for the creation of branched polyester compositions that exhibit high melt viscosities, even under low shear conditions. The first step involves the reaction of a linear polyester or polyester-polycarbonate with a polyfunctional epoxyalkyl compound, such as triglycidyl isocyanurate, to produce a reactive concentrate. The second phase reacts this concentrate with a polyester containing carboxylic acid end groups, such as poly(ethylene terephthalate) or poly(butylene terephthalate). Notably, this method enables the use of less epoxy compound to achieve desired melt viscosity compared to traditional blending methods. Additionally, one of his patents addresses the use of metal salts to effectively reduce the arc track rate in poly(1,4-butylene terephthalate) resin molding compositions, showcasing his innovative approach to improving polymer performance.
Career Highlights
Leonard R. Hepp is employed by General Electric Company (GE), a leader in the industrial and technological sectors. His work at GE has allowed him to push the boundaries of materials science, contributing to both consumer and industrial applications of polymers. His innovative mindset and dedication to research have positioned him as a key figure within the company.
Collaborations
Hepp has worked alongside notable colleagues such as Sterling B. Brown and Choong Y. Han, with whom he has likely shared insights and expertise to enhance their collective innovative efforts. These collaborations highlight the importance of teamwork and shared knowledge in driving advancements in technology and materials.
Conclusion
Leonard R. Hepp stands out as an influential inventor in the realm of polymer chemistry, particularly with his latest groundbreaking patents. His contributions not only demonstrate an acute understanding of materials but also underline the impact of collaborative efforts in the inventive process. As he continues his work at General Electric Company, the potential for future innovations remains promising.