Julia Uth
Technical Director, UTH GmbH
Julia Uth is Chief Technology Officer (CTO) at UTH GmbH, a German machine manufacturer specialised in gear pump technology for advanced mixing and dosing of polymers in the adhesives and sealants sector. After completing her master’s degree in engineering, Julia joined UTH GmbH, where she has been driving the development of innovative processing technologies. As a mechanical engineer, she is highly committed to advancing efficient and sustainable solutions for the processing of polymers, elastomers, adhesives, and related materials. Her work focuses on improving product quality, enabling resource efficiency, and reducing overall production costs through cutting-edge extrusion and mixing technologies.
Eliminate Instabilities in Adhesive Mixing by using Gear Pump Extruders
The processing of highly viscous and sticky polymers in adhesive manufacturing is frequently affected by process instabilities, particularly during dosing and continuous mixing. Fluctuations in material feed, pressure variations, and inconsistent mass flow can significantly impair mixing quality and, consequently, the performance of the adhesive or seal. As the functional properties of adhesives strongly depend on precise raw material ratios, stable and reproducible feeding into continuous mixers is essential.
To address these challenges, a dosing and feeding concept based on gear pump extruder technology was developed and systematically investigated within a cooperative research project. The results of this work were subsequently transferred into industrial practice and today represent the state of the art in modern continuous adhesive mixing lines.
Base polymers are commonly supplied as bales or other highly viscous material forms, placing high demands on dosing and conveying technology. Conventional feeding systems often struggle to ensure a uniform and pulsation-free material flow, resulting in downstream instabilities within the mixing process. The use of a gear pump extruder as a central process element enables volumetric, pressure-stable, and constant mass flow, effectively decoupling upstream feeding irregularities from the continuous mixer.
In combination with suitable feeding units, this technology not only improves process stability but also enables the reliable processing of materials in various physical forms. The presented process engineering solutions demonstrate how a technology originally developed in a research environment has evolved into a reliable and industrially established state-of the art solution for high-quality, continuous adhesive mixing applications.
Breakout III – Precision Application & Process Control – 16 September 2026 – 16:30 – 17:00 – Room Churchill – Ground Floor