Pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] is a high-performance hindered phenolic antioxidant with excellent thermal stability and antioxidant activity. It is a non-staining, non-discoloring antioxidant that can effectively scavenge free radicals in organic systems and inhibit the thermal oxidative degradation and photo-oxidation of materials during processing, storage and use.

It has good compatibility with a variety of polymers, resins and organic substrates, and no migration or blooming phenomenon occurs in the application process, which can maintain the long-term stability of the product performance. It is widely used in the processing and anti-aging protection of polyolefin materials such as polyethylene and polypropylene, and can significantly improve the heat resistance and processing stability of polyolefin products.