Irganox® 1726 by BASF is a multifunctional phenolic antioxidant with the following characteristics:

Chemical composition:

The chemical is 2,4-bis(dodecylthiomethyl)-6-methylphenol.

Its CAS number is 110675-26-8.

The molecular weight is approximately 537 g/mol.

Physical properties:

It appears as a white to slightly yellowish paste.

The melting point is 28 °C.

The density at 40 °C is 0.934 g/ml.

It has a relatively high flash point, which indicates a certain degree of safety in use.

Performance features:

Thermal stability: It is a thermo-oxidative stabilizer, providing excellent thermal stability to the substrate. It can effectively protect elastomers (such as natural rubber, chloroprene rubber, and SBR), block copolymers (such as SBS and SIS), and polyurethane products against thermo-oxidative degradation.

Low volatility: The product has low volatility, ensuring its long-term effectiveness within the material system.

Non-staining and non-discoloring: It does not cause staining or discoloration, which is beneficial for maintaining the appearance and quality of the final product.

Resistance to extraction: It shows high resistance to extraction, which means it can maintain its stability and functionality even in various environments.

Light stability: It has good stability to light, further enhancing the overall stability of the material in different light conditions.

Applications:

It is widely used in hot melt, solvent-borne, and water-borne adhesives.

Suitable for the stabilization of various polymers and copolymers, especially those based on unsaturated polymers like SBS or SIS.

Usage and dosage:

The recommended usage level of Irganox® 1726 is 0.1 - 1.0%. However, for specific applications, the dosage may need to be adjusted according to the type of substrate, processing conditions, and performance requirements.