BNX 1411


BNX 1411 (27676-62-6 & 31570-04-4)  is a synergistic blend of the phenolic antioxidant BNX 3114 and the phosphite Benefos 1680 in a 1:1 ratio.  This blend of both a primary and secondary antioxidant provides excellent heat stability and resistance to oxidation, with good compatibility with resins and low volatility.  Compared to other antioxidant blends this product provides excellent resistance to the discoloration phenomenon commonly known as “gas fading”.


Chemical Name:               BNX 3114:            1,3,5-Tris(3,6-di-tert-butyl-4-hydroxybenzyl)-1


                                          Benefos 1680:       Tris (2,4-di-tert-butylphenyl) phosphite

CAS Number:                   BNX 3114:               27676-62-6

                                         Benefos 1680:         31570-04-4

Chemical Structure:

BNX 3114:                                                            Benefos 1680:

BNX 3114b                   Benefos 1680

Typical Properties         

Product Form:                   Solid


BNX 1411 is a convenient blend of both a primary and secondary antioxidant. This synergistic blend addresses a broad range of stabilization needs. The resistance to “gas fading” makes it ideal for use as a melt processing stabilizer in polyolefins such as polypropylene, polyethylene, polyolefin copolymers and blends, and TPO’s. It is also ideal for use in polyolefins containing inorganic fillers (talc, glass fibers, etc.).


  • Ease and convenience for compounding operations
  • Provides excellent melt stability in a wide range of polyolefins
  • Phosphite component features excellent hydrolyic stability
  • Resistant to “gas fading” discoloration
  • Low volatility at high processing temperatures
  • FDA cleared for use in polyolefins and adhesives

Guidelines for Use

Typical recommended loading concentrations in polyolefins and adhesives range between 0.05% and 0.5%. BNX 1411 is also suitable for use in combination with light stabilizers, including hindered amine light stabilizers (HALS), UV absorbers, and benzoates. The exact formulation to be used is dependent on the substrate, performance requirements, and other factors, and should be determined by the user based on testing to simulate actual conditions of use. Please contact Mayzo for specific recommendations.


This product may be stored up to two years in a sealed container. Containers should be kept tightly closed when not in use and stored in a cool, dry place.


Please consult the Safety Data Sheet (SDS) prior to handling or using this product.

FDA Regulations

The components of BNX 1411 have been FDA cleared for use in adhesives under 21 CFR §175.105 and in olefin polymers and copolymers under 21 CFR §178.2010. Please contact your Mayzo representative for complete details, including restrictions of use.

Additional Product Details: Please view our BNX 1411 PDF