SI Group Main Antioxidants


SI Group Main Antioxidants are primary and secondary antioxidants which are well-known, workhorse chemistries that work in a variety of systems. They are available in powder, granular, and non-dusting forms and have FDA approval in select applications.

Problems Solved

Availability of primary antioxidants in powder and granular forms
Dusting and handling difficulties of powder and dusting antioxidants
Long lead time and supply issues with imported primary antioxidants
Degradation and decomposition of polymers due to oxidative degradation and aging
Extraction of antioxidants from the polymer compounds during the manufacturing process
High volatility of antioxidants in high-temperature processes
FDA clearances and regulatory approvals for use in food contact applications

13 Products
ALKANOX™ 240 Powder container
ALKANOX™ 240 Powder is low volatility and thermally stable organo-phosphite antioxidant and stabilizer. It prevents oxidative degradation in a variety of polymers and thermoplastic materials.
ANOX™ PP18 Powder container
ANOX™ PP18 Powder is a high molecular weight hindered phenolic antioxidant that effectively protects against polymer degradation during processing and long-term aging.
ANOX™ 29 container
Phenolic antioxidant that protects against thermo-oxidative degradation during processing, storage and end-use in a wide variety of materials.
ANOX™ PP18 NDB container
ANOX™ PP18 NDB is a high molecular weight hindered phenolic antioxidant that is supplied in a non-dusting form and provides excellent protection against polymer degradation.
NAUGARD™ DSTDP container
NAUGARD™ DSTDP is a thioester based secondary antioxidant that imparts excellent long-term aging in polyolefins and synthetic rubber.
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SI Group Main Antioxidants Articles
SI Group ALKANOX™ 240 Phosphite Antioxidant thumbnail
ALKANOX™ 240 phosphite is an organo-phosphite antioxidant that exhibits excellent hydrolytic stability.
Antioxidant and UV Stabilizers for TPO Membranes thumbnail

The SI Group's extensive portfolio of specialty antioxidants and UV stabilizers holds the solution to your TPO roof membrane formulating challenges.

SI Group ALKANOX™ 240 Antioxidante de Fosfito thumbnail
ALKANOX™ 240 phosphite es un antioxidante organofosfito que presenta una excelente estabilidad hidrolítica.