Roger I Krech

Title: The Innovations of Roger I Krech

Introduction

Roger I Krech is a notable inventor based in Saint Paul, MN (US). He has made significant contributions to the field of electrographic imaging materials, holding a total of 4 patents. His work has advanced the technology used in color proofing and photoconductive elements.

Latest Patents

Krech's latest patents include a color proofing element and a process for making the same. This proofing element features a photoconductive layer on an electrically conductive substrate, along with a removable dielectric layer containing thermoplastic polymeric resinous particles. These particles have steric stabilizer groups that are coordinated with a charge directing moiety, which includes a charge dissipating agent. Additionally, he has developed a process for applying this removable dielectric layer to a photoconductive substrate, which involves using an organosol that contains these specialized particles. Another significant patent is for bilayer topcoats for organic photoconductive elements. This innovation utilizes a barrier layer between photoconductor layers and release layers, enhancing performance in liquid toned imaging processes.

Career Highlights

Roger I Krech has spent his career at the Minnesota Mining and Manufacturing Company, where he has been instrumental in developing advanced imaging technologies. His expertise in photoconductive materials has positioned him as a key figure in the industry.

Collaborations

Krech has collaborated with notable colleagues, including Gregory L Zwadlo and Gregory E Zwaldo. Their combined efforts have contributed to the advancements in electrographic imaging technologies.

Conclusion

Roger I Krech's innovative work in the field of electrographic imaging has led to significant advancements in color proofing and photoconductive elements. His contributions continue to influence the industry and pave the way for future innovations.