What if functional group conversion could be measured continuously and in real time, enabling precise control of hydroxyl, acid, or epoxy numbers before deviations arise?

With real-time, inline spectroscopic probes from Hellma, this level of process insight is no longer aspirational. Real-time data replaces estimation, enabling proactive process control and reproducible product quality.
Stop guessing. Start controlling.

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Process Analytical Technology (PAT) enables manufacturers to move from delayed quality control to real-time process understanding. Using inline spectroscopic methods such as IR, NIR or Raman, PAT provides continuous insight into reaction progress, functional group conversion and key molecular properties while the chemistry is still evolving.

Instead of waiting for laboratory results, manufacturers gain real-time control over:

This is particularly relevant for synthesis routes such as polycondensation, polyaddition and radical polymerization, where even small variations in reaction conditions can significantly impact final material performance.

By transforming chemical signals into actionable process data, PAT shifts quality control from reactive to proactive — enabling automated recipe control, reduced batch variation and improved reproducibility. Nevertheless, real-time analytics are only as reliable as the signal they receive. And that signal depends on one critical component: The probe inside your process.

HELLMA spectroscopy probes are specifically designed for the demanding conditions of resin and monomer production. Every detail, from material selection to probe design, is optimized for industrial reality. These probes enable the measurement of numerous critical quality attributes that directly impact monomer and resin functionality, performance, and suitability for their intended applications. When processing sticky products and products with a tendency to form deposits a retractable fitting from our partner Knick can be added to allow on-site cleaning of a probe and carrying out a reference measurement in the ongoing process is possible.

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In Short:

With Hellma, you don’t just get a probe — you gain a reliable, precise, and durable measurement solution
that ensures your resin processes stay under control, every batch, every time.

We don’t just supply probes.
We enable reliable inline measurement in real industrial environments.

Most resin systems originate from ethylene, propylene, butadiene or aromatics — compounds and are converted into monomers, which are subsequently polymerized into various resins through further reactions. During their chemical synthesis, precise control of molecular properties such as hydroxyl, acid, and epoxy values is crucial.

Common Monomer/Resin Types and Their Spectroscopically Measurable Quality Parameters