Location History:
- Birmingham, AL (US) (1976 - 1977)
- Auburn, AL (US) (1978)
Company Filing History:
2 out of 55 
1 out of 13 Years Active: 1976-1978
Title: The Innovations of David R. Hart
Introduction
David R. Hart is an accomplished inventor based in Birmingham, Alabama. He has made significant contributions to the field of chemical engineering, particularly in the production of phenolic compounds and rubber technology. With a total of three patents to his name, Hart's work has had a lasting impact on various industries.
Latest Patents
One of Hart's latest patents is a process for the production of phenolic complexes. This innovative process involves mixing phenol or phenolic compounds with hexamethylenetetramine, using just enough water or suitable solvent to facilitate the reaction. The heat generated during the reaction is managed by cooling the mixing chamber, while drying is achieved by removing the minimal solvent in conventional dryers. Another notable patent is related to a substrate reinforced rubber structure and the compound for forming it. In this invention, the reaction products of phenol and hexamethylenetetramine serve as methylene donors in rubber compounds that contain acceptors like free resorcinol or precondensed resorcinol-formaldehyde resins. This innovative approach enhances adhesion between rubber compounds and reinforcing substrates without degrading the polyester cord used.
Career Highlights
Throughout his career, David R. Hart has worked with prominent companies such as United States Pipe and Foundry Company and Jim Walter Resources, Inc. His experience in these organizations has allowed him to apply his inventive skills in practical settings, contributing to advancements in manufacturing and materials science.
Collaborations
Hart has collaborated with notable individuals in his field, including Henry Philip Orem and Jerry E. Hill. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.
Conclusion
David R. Hart's contributions to the field of chemical engineering and rubber technology exemplify the spirit of innovation. His patents reflect a deep understanding of materials and processes that continue to influence various industries today.