Skip to main content

Reshape polyester production with
AddWorks™ antimony-free catalysts

AddWorks titanium-based catalyst solutions materialize Clariant's innovative approach to more sustainable polyester production. This advanced technology offers manufacturers a high-performance alternative to traditional antimony-based catalysts, delivering enhanced polymerization kinetics at lower processing temperatures. By enabling antimony-free PET production, AddWorks catalysts address both growing supply chain challenges following China's export restrictions and increasing environmental concerns. The technology's water-stable formulation ensures consistent catalytic activity without risk of deactivation, resulting in superior polymer color, higher productivity, and reduced energy consumption. Designed for the entire polyester family including PET, PETG, PBT, and emerging polyesters like PEF, AddWorks catalysts bring substantial CAPEX and OPEX savings while supporting manufacturers' efforts to lower their Scope 1 and 2 emissions. Ideal applications include beverage bottles, food packaging, textiles, and both mechanical and chemical PET recycling processes, helping brands meet evolving consumer demands and regulatory requirements.

Discover the benefits of our titanium-based AddWorks catalyst solutions

Our innovative titanium-based technology transforms polyester production through:


  • Enhanced polymerization kinetics with higher productivity
  • Lower processing temperatures and shorter reaction times reducing energy consumption and carbon emissions
  • Superior color performance in both virgin and recycled PET
  • Water-stable formulation preventing catalyst hydrolysis and reducing downtime
  • Antimony-free chemistry addressing supply chain challenges and regulatory concerns
  • Significant CAPEX and OPEX savings through multiple efficiency improvements
  • Improved sustainability profile with lower environmental mobility and toxicity and bioaccumulation
  • Compatibility with polyester recycling, supporting circular economy initiatives

Explore our additives portfolio

How can we help you?

back to top

页面摘要

摘要生成中