BASF Expands Ultrason Portfolio with Biomass-Balanced PPSU Grade

A Sustainable Shift in High-Performance Polymers

BASF has officially expanded its high-performance polymer portfolio with the introduction of a new biomass-balanced (BMB) polyphenylsulfone (PPSU) grade within its Ultrason product family. This strategic addition provides manufacturers with a more sustainable, drop-in alternative for highly demanding engineering applications without compromising on stringent physical and thermal performance requirements.

The Biomass Balance Approach

The new Ultrason PPSU grade is manufactured utilizing BASF’s established biomass balance approach. Under this methodology, renewable raw materials—such as bio-naphtha or biogas derived from organic waste and agricultural by-products—are integrated into the initial stages of chemical production. These sustainable feedstocks are then mathematically attributed to the final PPSU product using an independently certified mass balance model, typically verified by standards such as REDcert² or ISCC PLUS. Consequently, the new grade significantly reduces the product’s overall product carbon footprint (PCF) and helps downstream customers lower their Scope 3 emissions.

Uncompromised Technical Performance

Because the molecular structure and chemical composition remain identical to its conventional fossil-based counterpart, the biomass-balanced PPSU serves as an exact drop-in solution. Manufacturers can seamlessly transition to the lower-carbon material without the need to modify existing supply chains, alter injection molding parameters, or undergo expensive material requalification processes.

The BMB grade retains the exceptional mechanical properties that the Ultrason line is known for, including extraordinary continuous service temperatures, inherent flame retardance, outstanding chemical resistance, and excellent dimensional stability.

Target Industries and Applications

The introduction of this bio-attributed PPSU is highly relevant for demanding and tightly regulated sectors. In the medical and food handling industries, the material’s ability to withstand thousands of cycles of superheated steam sterilization makes it ideal for reusable surgical instruments, plumbing fittings, and consumer goods such as baby bottles. Furthermore, its lightweight and fire-resistant characteristics continue to drive efficiency and safety in aerospace and automotive manufacturing.

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