Catalysts & Polymerization Specialty Chemicals

This series features high-efficiency antimony glycolate for polyesters, an organo-antimony catalyst specially developed for PET polycondensation reactions.

Compared with conventional antimony trioxide or antimony acetate, antimony glycolate for polyesters delivers the following procurement-relevant advantages: - High activity: Superior catalytic efficiency shortens polycondensation cycles and improves production-line capacity utilisation. - Favourable solubility: Homogeneous dispersion within ethylene glycol reduces filter clogging and side-reaction formation. - Low residual impurities: Tight metallic-impurity control improves colour and optical performance (b-value) of polyester chips. - Batch consistency: Rigorous synthetic-process control guarantees uniform catalytic activity across production lots.

Key parameters for qualification include antimony content (wt%), dissolution rate, maximum allowable metallic-impurity levels and hermetic packaging for moisture protection. Drawing on customer polymerization-process parameters (temperature, pressure, formulation), we provide technical-parameter comparisons and practical application references. This facilitates rapid evaluation and validation during supplier transitions or formulation adjustments.