William A Sprenger

Title: **William A. Sprenger: Innovator in Polyester and Vinyl Ester Resins**

Introduction

William A. Sprenger is an accomplished inventor based in Coleman, Michigan, known for his significant contributions to the field of polymer chemistry. With a total of two patents to his name, he has pioneered advancements that enhance the performance of unsaturated polyester and vinyl ester resins.

Latest Patents

Sprenger's latest innovations include the development of low-profile additives for unsaturated polyester resins. This invention focuses on reducing the shrinkage of a thermosettable composition during the curing process by incorporating an alkylene oxide polymer. This polymer is designed to be soluble in the thermosettable composition while remaining substantially less soluble in the cured thermoset composition.

Another notable patent from Sprenger involves vinyl ester resins that incorporate polyoxyalkylene low-profile additives. This innovation aims to create low shrink and low profile reinforced plastic systems by embedding an additive described by a complex chemical formula. This additive is characterized by its solubility in the resin while uncured and its insolubility when cured. Typical initiating compounds for this additive include water, ethylene glycol, glycerine, and phenol, ensuring enhanced properties of the resin systems.

Career Highlights

William A. Sprenger has made notable strides in his career at the Dow Chemical Company, where he has focused on improving resin formulations for various applications. His work has not only contributed to his personal accolades but has also played a significant role in advancing the company's product offerings.

Collaborations

During his tenure, Sprenger has collaborated with esteemed colleagues, including James L. Brewbaker and Rodrique L. Marzett. These collaborations have fostered an environment of innovation, resulting in groundbreaking products that address the needs of the industry.

Conclusion

William A. Sprenger stands out as a notable inventor in the domain of polymer chemistry, with his patented innovations set to impact the performance characteristics of key materials. His ongoing work at Dow Chemical Company and collaborations with fellow innovators highlight his commitment to advancing technology in resin manufacturing.