Antioxidant Blends

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Physical blends of stabilizers with different stabilization mechanisms are the state-of-the art today.  Blends of hindered phenols acting as hydrogen donors in combination with phosphites and/or thiosynergists acting as hydroperoxide decomposers have long been used to stabilize polymeric materials. Powerful hydroxylamines, which interrupt the oxidation cycle early by scavenging carbon centered radicals are often used in combination with phosphites when high performance processing stability is needed. These different antioxidant combinations are known to provide a synergistic effect.  In other words, the overall benefit of combining these antioxidants is greater than the impact of each chemistry individually.


BLX® 2811

Overview

BLX 2811 is a fully formulated, non-phenolic stabilizer system that is highly effective for the stabilization of polyolefins to the effects of processing, exposure to light, and long-term heat aging. Due to its non-discoloring nature, the product is ideal for use in color critical applications.

Chemistry

        Chemical Name:                     Proprietary

        CAS Number:                          Proprietary

        Chemical Structure:               Proprietary

Typical Properties

        Product Form:                         Solid
Product Details:  Please view our BLX 2811 PDF

BNX® 1000

Overview

BNX 1000 is a unique proprietary blended liquid antioxidant system containing components that are highly effective in the protection of adhesives, rubber, resins, and other polymer systems.  This product has the advantage of a liquid physical form.  Compared to solid antioxidants, BNX 1000 provides ease in blending and should result in lower loading requirements since it disperses completely, virtually eliminating the particle dispersion problems associated with traditional powder antioxidants.  BNX 1000 is an effective, non-discoloring stabilizing system that provides excellent long-term heat stability by preventing thermo-oxidative degradation during processing and service life.  BNX® 1000 can also be synergistically blended with other stabilizers like BLS® 531, BLS® 1328, and hindered amine light stabilizers to provide added protection.  Extensive testing has proven BNX 1000 to be especially effective in the new generation of hot melt and water base adhesive systems, providing increased heat and extended oxidation resistance.

Chemistry

Chemical Name:                     Proprietary formula

CAS Number:                          Proprietary formula

Chemical Structure:               Proprietary formula

Typical Properties         

Product Form:

Liquid Flash Point:                 >350oF

Product Details:  Please view our BNX 1000 PDF

BNX 1171

Overview

BNX 1171 is a 1:1 blend of a phenolic antioxidant and a phosphite developed for the stabilization of polyamides and other polymers.

Chemistry

        Chemical Names:

                Hindered Phenol:                    N,N’-hexane-1,6-diylbis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)

                                                                 propionamide]

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

        CAS Number:                  

                Hindered Phenol:                    23128-74-7

                Phosphite:                               31570-04-4

        Chemical Structure:

                                         Hindered Phenol:                                                   Phosphite:

                                                        Hindered Phenol     

Typical Properties         

        Product Form:                                 Solid

        Melting Point:                                  >155oC

        Molecular Weight:

                Hindered Phenol:                    637    g/mol

                Phosphite:                               646.9 g/mol

Product Details: Please view our  BNX 1171 PDF

BNX 1215

Overview

BNX 1215 is a synergistic blend of the phenolic antioxidant BNX 1010 and the phosphite Benefos 1680 in a 1:2 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.

Chemistry

Chemical Name              

BNX 1010:                     Pentaerythritol tetrakis [3-(3,5-di-tert-butyl-4- hydroxyphenyl) propanoate]

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

CAS Number                   

BNX 1010:                     6683-19-8

Benefos 1680:              31570-04-4

Chemical Structure

                                               BNX1010                                               Benefos 1680

                                               BNX 1010   Benefos 1680

Typical Properties         

        Product Form:                      Solid

Product Details: Please view our BNX 1215 PDF

BNX 1225

 

Overview

BNX 1225 is a synergistic blend of the phenolic antioxidant BNX 1010 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.

Chemistry

         Chemical Name                    

                 BNX 1010:                     Pentaerythritol tetrakis [3-(3,5-di-tert-butyl-4-hydroxyphenyl) propanoate

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

        CAS Number
                 BNX 1010:                     6683-19-8

                 Benefos 1680:               31570-04-4

Chemical Structure:

                                                        BNX 1010:                                                  Benefos 1680:

                                                        BNX 1010         Benefos 1680

Typical Properties         

            Product Form:                    Solid

            Molecular Weight:             647 g/mol

Product Details:  Please view our  BNX 1225 PDF

BNX 1225 TPR

Overview

BNX 1225 TPR is a 45% active pelletized concentrate of the antioxidant blend BNX 1225 in an SIS (styrene-isoprene-styrene) thermoplastic rubber. The BNX 1225 component is a synergistic blend of BNX 1010 and Benefos® 1680 at a 1:1 ratio, which provides excellent heat stability and oxidation resistance. It also exhibits good compatibility with resins and excellent extraction resistance. The SIS component has a styrene content of 14%, diblock content of 12% and a melt index of 9.

Chemistry

     Chemical Names:
                 BNX 1010:                    Benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-,1,1'-

                                                       [2,2-bis[[3-[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]-1-

                                                       oxopropoxy]methyl]-1,3-propanediyl] ester

                 Benefos 1680:             Phenol, 2,4−bis(1,1−dimethylethyl)−, 1,1',1''−phosphite

     CAS Numbers:

                 BNX 1010:                    6683-19-8
                 Benefos 1680:             31570-04-4

     Chemical Structures:

                                                       BNX 1010                                            Benefos 1680

                                                           

Typical Properties

     Product Form:                          Solid

            BNX 1225 Content:           43 – 47% by weight

            Pellet Weight:                    0.6 – 1.2 g/50 pellets

Product Details:  Please view our BNX 1225 TPR PDF

BNX 1249

Overview

BNX 1249 is a multifunctional stabilization system for plastics, elastomers, and adhesives.  It is particularly effective under demanding processing conditions (high temperature, high shear) and under both aerobic and anaerobic conditions.

Chemistry

Chemical Names:                     Proprietary

CAS Number:                            Proprietary

Chemical Structure:                 Proprietary

Typical Properties         

 Product Form:                         Solid

Product Details: Please view our BNX 1249 PDF

BNX 1411

Overview

BNX 1411 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”.

Chemistry

Chemical Name:              

        BNX 3114:                       1,3,5-Tris(3,6-di-tert-butyl-4-hydroxybenzyl)-1-3,5-triazine-2,4,4(1H,3H,5H)

                                                  -trione

        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

Product Details: Please view our BNX 1411 PDF

BNX 1900

Overview

BNX 1900 is a synergistic blend of 20% BNX® 1076 and 80% Benefos® 1680.  This blend of both a primary and secondary antioxidant provides excellent heat stability and antioxidation, with good compatibility with resins and excellent extraction resistance.

Chemistry

Chemical Name:       

         BNX 1076:                       20% Stearyl-3-(3’,5’-di-tert-butyl-4-  hydroxyphenyl) propionate

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

CAS Number:         

         BNX 1076:                       2082-79-3

         Benefos 1680:                 31570-04-4

Chemical Structure:

                                                         BNX 1076:                                           Benefos 1680:

                                                       BNX 1076b   Benefos 1680

Typical Properties         

       Product Form:                           Solid

       Molecular Weight:

          BNX 1076:                      530.9

          Benefos 1680:                647

Product Details:  Please view our Benetex 1900 PDF

BNX 2301

Overview

BNX 2301 is a non-phenolic stabilizer system that is highly effective for the melt processing stabilization of polyolefins. Due to its non-discoloring nature, it is ideal for use in color critical applications.

Chemistry
Chemical Name:                     Proprietary
CAS Number:                          Proprietary
Chemical Structure:               Proprietary
Typical Properties
Product Form:                         Solid

Product Details:  Please view our BNX 2301 PDF

BNX 2777

Overview

BNX 2777 is a primary and secondary antioxidant blend using an phenolic antioxidant (BNX® 1790) and a phosphite type antioxidant (Benefos® 1680).  The primary antioxidant provides superior polymer stabilization and has excellent compatibility with polymeric HALS’s and UVA’s.  The secondary antioxidant provides excellent heat stability and antioxidation, with good compatibility with resins and excellent extraction resistance.

Chemistry

Chemical Name:            

                BNX 1790:                      1,3,5-Tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)

                                                       -1,3,5-triazine-2,4,6-(1H,3H,5H)-trione

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

        BNX 1790:                     40601-76-1

        Benefos 1680:               31570-04-4

Chemical Structure:

                                                       BNX 1790:                                                Benefos 1680:

                                                      BNX 1790Benefos 1680

Typical Properties         

Product Form:                       Solid

Melting Point:

        BNX 1790:                     159-163oC

        Benefos 1680:              183-187oC

Molecular Weight:

        BNX 1790:                     699

        Benefos 1680:              647

Product Details:  Please view our BNX 2777  PDF

BNX 5010 TPR

Overview

BNX 5010 TPR is a 50% active pelletized concentrate of the phenolic antioxidant BNX 1010 in an SIS (styrene-isoprene-styrene) thermoplastic rubber. The BNX 1010 component is an effective, non-discoloring stabilizer that provides excellent long-term heat stability by preventing thermo-oxidative degradation during processing and service life. It also exhibits good compatibility with resins and excellent extraction resistance. The SIS component has a styrene content of 14%, diblock content of 12% and a melt index of 9.

Chemistry

        Chemical Name:                     Benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-,1,1'-[2,2-bis

                                                         [[3-[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]-1-oxopropoxy]methyl]

                                                         -1,3-propanediyl] ester

        CAS Number:                          6683-19-8
Chemical Structure:
BNX 5010 TPR
Typical Properties
Product Form:                                  Solid
BNX 1010 Content:                          48 – 52% by weight
Pellet Weight:                                   0.6 – 1.2 g/50 pellets
Product Details:  Please view our BNX 5010 TPR PDF