Company Filing History:
8 out of 8 
1 out of 71 
1 out of 4,455 
Years Active: 1978-1996
Title: The Innovative Contributions of Ezekiel H Hull
Introduction
Ezekiel H Hull is a notable inventor based in Greensboro, NC (US), recognized for his significant contributions to the field of thermoplastic compositions. With a total of 13 patents to his name, Hull has made strides in developing environmentally friendly materials that have practical applications in various industries.
Latest Patents
Among his latest patents, Hull has developed physically-modified degradable thermoplastic compositions. These compositions are enhanced by citrate esters and other polycarboxylic acid esters, which improve their physical properties. Additionally, he has created a method for producing citrates through esterification using organic titanates as a catalyst. This innovative approach allows for the removal of excess alcohol during the process. Hull's research has identified four specific citrate esters that provide advantageous plasticizing properties to PVC compositions, yielding superior toxicity test results and excellent performance in soapy water extraction tests. The four citrate esters include acetyltri-n-hexyl citrate, n-butyryltri-n-hexyl citrate, acetyltri-n-(hexyl/octyl/decyl) citrate, and acetyltri-n-(octyl/decyl) citrate. Articles formed from these PVC plasticized mixtures are particularly valuable in the medical and healthcare fields due to their low toxicity levels.
Career Highlights
Throughout his career, Hull has worked with several prominent companies, including Morflex Chemical Company, Inc. and Reilly Industries, Inc. His work has focused on advancing the development of materials that are not only effective but also environmentally sustainable.
Collaborations
Hull has collaborated with notable individuals in his field, including Edward P Frappier and L Murl Jackson. These partnerships have contributed to the success of his innovative projects and patents.
Conclusion
Ezekiel H Hull's contributions to the field of thermoplastic compositions highlight his commitment to innovation and sustainability. His work continues to influence the development of safer materials for various applications, particularly in healthcare.