Antioxidant Blends
[soliloquy id=”5450″]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.
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
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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
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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:
Typical Properties
Product Form: Solid
Melting Point: >155oC
Molecular Weight:
Hindered Phenol: 637 g/mol
Phosphite: 646.9 g/mol
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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
Typical Properties
Product Form: Solid
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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:
Typical Properties
Product Form: Solid
Molecular Weight: 647 g/mol
Product Details: Please view our BNX 1225 PDF
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
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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
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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:
Typical Properties
Product Form: Solid
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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:
Typical Properties
Product Form: Solid
Molecular Weight:
BNX 1076: 530.9
Benefos 1680: 647
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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
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:
Typical Properties
Product Form: Solid
Melting Point:
BNX 1790: 159-163oC
Benefos 1680: 183-187oC
Molecular Weight:
BNX 1790: 699
Benefos 1680: 647
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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
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