Helga Rosentreter

Title: Helga Rosentreter: Innovator in Chrome Tanning Processes

Introduction

Helga Rosentreter is a notable inventor based in Leverkusen, Germany. She has made significant contributions to the field of leather processing, particularly in chrome tanning methods. With a total of 2 patents to her name, her work has had a substantial impact on the industry.

Latest Patents

Rosentreter's latest patents include a high-extraction chrome tanning process. This innovative method improves the tanning of pickled animal hides using a reaction product of basic chromium (III) sulfate and aliphatic C.sub.4 -C.sub.6 dicarboxylic acids or their salts. The process involves preparing the reaction product in an aqueous solution and adjusting the theoretical basicity with alkali metal hydroxide or carbonate. The final pH value is maintained above 4.0, and the temperature exceeds 40 degrees Celsius. Another significant patent relates to a process for the retanning of chrome leathers, which achieves very high chromium exhaustion of the liquor through the use of specific mixtures.

Career Highlights

Helga Rosentreter is associated with Bayer Aktiengesellschaft, a leading company in the chemical and pharmaceutical industry. Her work has been instrumental in advancing tanning processes, making them more efficient and environmentally friendly.

Collaborations

Throughout her career, Rosentreter has collaborated with esteemed colleagues such as Bernhard Wehling and Bernd Makowka. These partnerships have fostered innovation and contributed to the success of her projects.

Conclusion

Helga Rosentreter's contributions to chrome tanning processes exemplify her dedication to innovation in the leather industry. Her patents reflect a commitment to improving traditional methods, ensuring a more sustainable future for leather processing.