Thomas L Doerr

Title: Thomas L. Doerr: Innovator in Polyolefin Catalyst Deactivation

Introduction

Thomas L. Doerr is a notable inventor based in Longview, TX (US). He has made significant contributions to the field of polymer chemistry, particularly in the area of catalyst deactivation processes. His innovative work has led to advancements in the quality of polymeric materials.

Latest Patents

One of Thomas L. Doerr's key patents is titled "Two step polyolefin catalyst deactivation." This patent describes a two-step process for preparing polymeric material by polymerizing alpha-monoolefins in the presence of a halogen-containing polymerization catalyst. The process addresses the issue of corrosive halogen-containing catalyst residues in the polymeric material. The improvement involves contacting the polymeric material with steam, air, and nitrogen at a temperature where the material is in a fluid or liquid state. This is followed by treating the molten polymer with alumina. The resulting polymeric material exhibits good color, low chlorides, and low volatiles, showcasing the effectiveness of the two-step catalyst deactivation process.

Career Highlights

Thomas L. Doerr is associated with Eastman Kodak Company, where he has applied his expertise in polymer chemistry. His work has contributed to the development of high-quality polymer products that meet industry standards.

Collaborations

Throughout his career, Thomas has collaborated with esteemed colleagues, including Robert E. Holliday and Edward H. Carter, Jr. These collaborations have fostered innovation and have been instrumental in advancing their shared goals in polymer research.

Conclusion

Thomas L. Doerr's contributions to the field of polymer chemistry, particularly through his patent on catalyst deactivation, highlight his role as an innovator. His work continues to influence the quality of polymeric materials in the industry.