Phenolic Antioxidants

Phenolic Antioxidants

Hindered phenols are the most widely used antioxidants and are highly effective in an extensive range of applications. They function as free radical scavengers and provide protection during high temperature processing operations and also during end use at elevated temperatures. Combinations of phenolic antioxidants with phosphites and thiosynergists are often used.


BNX® 245

Overview

BNX 245 is a partially-hindered phenolic antioxidant that provides excellent processing and long term thermal stability in a wide range of plastics and other materials.

Chemistry

Chemical Name: Benzenepropanoic acid, 3−(1,1−dimethylethyl)−4−hydroxy−5− methyl−,

                           1,1'−[1,2−ethanediylbis(oxy−2,1−ethanediyl)] ester

CAS Number:    36443-68-2

Chemical Structure:

BNX 245

Typical Properties

Product Form: Solid

Melting Range: 76 - 79oC

Molecular Weight: 586.8 g/mol  

Applications

BNX 245 is a highly effective antioxidant and process stabilizer in styrenic polymers (ABS, MBS, HIPS, and SB / SBR lattices), polyacetals, thermoplastic polyesters (especially PBT), polyamides, polyurethanes, PVC, other polymers, adhesives, and sealants. It is also useful as a chain terminator in PVC polymerizations.

Advantages

  • Provides excellent processing and long term thermal stability to plastics, especially when used in combination with phosphites and / or thioether antioxidants
  • Partially hindered structure provides resistance to discoloration on exposure to combustion gases (“gas fading”)
  • Excellent compatibility with styrenic polymers, engineering plastics, polyurethanes, and PVC
  • Low volatility

Guidelines for Use

Recommended concentrations in plastics, adhesives, and sealants range from 0.05 to 1%. Combinations of BNX 245 with other antioxidants such as phosphites and thioethers often show synergistic performance. BNX 245 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.

Storage

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.

Safety

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

FDA Regulations

BNX 245 is cleared under 21 CFR §178.2010 for use as an antioxidant and/or stabilizer in polymers used in the manufacture of articles or components for use in food contact applications, including polystyrene (including rubber-modified polystyrene), ABS, polyacetal (homopolymers and copolymers), rigid PVC, polyvinylidene chloride homo- and copolymers, and adhesives. Please contact your Mayzo representative for complete details, including restrictions of use.

Additional Product Details:  Please view our BNX 245 PDF

BNX 358

Overview

BNX 358 is a non-discoloring antioxidant useful for the stabilization of elastomers, plastics, adhesives, and lubricants. The product is also used as a disproportionation agent in the production of rosin esters.

Chemistry

Chemical Name: Phenol, 4,4'thiobis[2(1,1dimethylethyl)5methyl

CAS Number: 96-69-5

Chemical Structure:

BNX 358

Typical Properties

Product Form:  Solid

Melting Range:  160oC

Molecular Weight:  358.5 g/mol

Applications

BNX 358 is a highly effective antioxidant for the stabilization of elastomers (especially EPDM and polybutadiene), polyolefins (especially in pipe and in wire & cable grades), styrenic polymers, PVC, hot melt adhesives, and in lubricants. It also functions as disproportionation agent in rosin ester production.

Advantages

  • Non-discoloring and non-staining
  • Good compatibility with peroxides (for example in elastomers and in polyolefin wire & cable formulations) and carbon black
  • Inhibits skin formation in hot melt adhesives
  • As a disproportionation agent, improves the thermal oxidative stability of rosin esters

Guidelines for Use

The recommended loading levels in plastics, elastomers, hot melt adhesives, and lubricants range between about 0.1 and 2%. BNX 358 can also be used in combination with other additives, including antioxidants (primary and/or secondary) and light stabilizers. 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.

Storage

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.

Safety

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

FDA Regulations

BNX 358 is FDA-cleared for use in adhesives under 21 CFR §175.105, in polyethylene polymers under 21 CFR §178.2010, and in rubber articles intended for repeated use under 21 CFR §177.2600. Please contact your Mayzo representative for specific details, including restrictions of use.

Additional Product Details:  Please view our BNX 358 PDF

 

BNX 549

Overview

BNX 549 is a multifunctional antioxidant for the stabilization of plastics and elastomers. Unlike conventional phenolic antioxidants, BNX 549 is effective to scavenge alkyl (carbon-centered) radicals. The product is particularly active under demanding processing conditions (high temperature, high shear) and under anaerobic conditions.

Chemistry

Chemical Name:                 2−Propenoic acid, 2−[1−[3,5−bis(1,1−dimethylpropyl)

                                           −2− hydroxyphenyl]ethyl]

                                           −4,6−bis(1,1−dimethylpropyl)phenyl ester

CAS Number:                     123968-25-2

Chemical Structure:

BNX 549

Typical Properties

Product Form: Solid
Melting Range: ≥ 115oC
Molecular Weight: 548.8 g/mol

Applications

BNX 549 is particularly useful for the stabilization of plastics and elastomers derived from butadiene and other dienes, for example polybutadiene and copolymers of polybutadiene and other monomers. The product is also effective in the stabilization of polyolefins and polyamides.

Advantages

  • Highly effective to prevent gel formation in butadiene homo- and co-polymers, especially

    under anaerobic conditions

  • Non-discoloring and low volatility
  • FDA-cleared for use in polypropylene, styrenic block copolymers, polystyrene, and rubbermodified

    polystyrene

Guidelines for Use

The recommended loading levels in plastics and elastomers range between 0.05 and 0.5%. Best results in terms of processing and thermal oxidative stability are generally obtained by combining BNX 549 with conventional phenolic antioxidants and secondary antioxidants (phosphites, thiosynergists, and the like). BNX 549 can also be used in combination with light stabilizers such as 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.

Storage

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.

Safety

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

FDA Regulations

BNX 549 is cleared under 21 CFR §178.2010 for use as an antioxidant and/or stabilizer in polymers
used in the manufacture of articles or components for use in food contact applications, including
polypropylene, styrene block copolymers, and polystyrene (including rubber modified polystyrene).
Please contact your Mayzo representative for complete details, including restrictions of use.

Additional Product Details: Please view our BNX 549 PDF

BNX 565

Overview

BNX 565 is a high molecular weight, non-staining, multifunctional antioxidant developed for the stabilization of unsaturated elastomers (BR, IR, SBR, SIS, SBS, etc.), hot melt adhesives, and rosin ester tackifier resins.

Chemistry

Chemical Name                 Phenol, 4−[[4,6−bis(octylthio)−1,3,5−triazin−2−yl]amino]

                                          − 2,6−bis(1,1−dimethylethyl)−

CAS Number:                    991-84-4

Chemical Structure:

BNX 565

Typical Properties

Product Form:                    Solid

Melting Range:                  94 – 96oC

Molecular Weight:             589.0 g/mol

Applications

BNX 565 is a highly effective antioxidant for unsaturated elastomers such as polybutadiene, polyisoprene, styrene-butadiene rubber, and styrenic block copolymers such as SIS and SBS. BNX 565 is also useful for the stabilization of hot melt adhesives (especially those derived from unsaturated elastomers) and rosin ester tackifier resins.

Advantages

  • Highly effective to prevent gel formation and discoloration in unsaturated elastomers, even at reduced concentrations vs. conventional antioxidants
  • Non-discoloring and non-staining
  • Low volatility

Guidelines for Use

Recommended concentrations in unsaturated elastomers, hot melt adhesives, and rosin ester tackifier resins range from 0.02 to 1%. Combinations of BNX 565 with other antioxidants such as phosphites often show synergistic performance. BNX 565 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.

Storage

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.

Safety

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

FDA Regulations

BNX 565 has extensive FDA clearances, including in adhesives under 21 CFR §175.105; in pressure sensitive adhesives under 21 CFR §175.125; in styrene block copolymers, polystyrene (including rubber-modified polystyrene), rosins and rosin derivatives, petroleum alicyclic hydrocarbon resins, and terpene resins under 21 CFR §178.2010; in rubber articles intended for repeated use under 21 CFR §177.2600; and in many other applications. Please contact your Mayzo representative for complete details, including restrictions of use.

Additional Product Details:  Please view our BNX 565 PDF

BNX 1010

Overview

BNX 1010 is a high molecular weight hindered phenolic antioxidant that provides excellent processing and long term thermal stability in a wide variety of organic substrates such as plastics, synthetic fibers, elastomers, adhesives, waxes, oils, and fats.

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 1010

Typical Properties

Product Form:  Solid

Melting Range:  110 -125oC

Molecular Weight: 1177.6 g/mol

Applications

BNX 1010 is a highly effective antioxidant and process stabilizer in polyolefins, including polyethylene, polypropylene, polybutene, and in olefin copolymers such as EVA. It also provides excellent performance in other polymers such as polyacetals, polyamides, polyesters, polyurethanes, PVC, styrenics, elastomers (such as butyl rubber, SBS, SEBS, EPM, EPDM, and other synthetic rubbers), and latex. It is also recommended for use in adhesives, natural and synthetic tackifier resins, synthetic diester fluids, oils, fats, waxes, and many other organic substrates.

Advantages

  • Provides excellent stability during high temperature processing and long term heat aging
  • Compatible with a wide range of organic substrates
  • Non-staining and non-discoloring
  • Excellent resistance to extraction
  • Odorless and tasteless
  • Low volatility
  • Extensive FDA clearances
  • Compatibility with other stabilizers and additives

Guidelines for Use

Recommended loading concentrations range between 0.02% and 1% in polyolefins, between 0.2% and 1% in hot melt adhesives, and between 0.1% and 0.5% in synthetic tackifier resins. Combinations of BNX 1010 with other antioxidants such as phosphites and thioethers often show synergistic performance. BNX 1010 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.

Storage

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.

Safety 

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

FDA Regulations

BNX 1010 has extensive FDA clearances, including in adhesives under 21 CFR §175.105; in all polymers, rosins and rosin derivatives, petroleum alicyclic hydrocarbon resins, terpene resins, and pressure-sensitive adhesives under 21 CFR §178.2010; in lubricants under 21 CFR §178.3570; in surface lubricants used in the manufacture of metallic articles under 21 CFR §178.3910; and in many other applications. Please contact your Mayzo representative for complete details, including restrictions of use.

Additional Product Details:  Please view our BNX 1010 PDF

BNX 1035

Overview

BNX 1035 is a multifunctional antioxidant containing both hindered phenolic and thioether moieties. The product is widely used for the process stabilization of cross-linked polyethylene wire and cable resins and as an antioxidant in lubricants.

Chemistry

Chemical Name:                   Benzenepropanoic acid, 3,5−bis(1,1−dimethylethyl)

                                             −4− hydroxy−,1,1'−(thiodi−2,1−ethanediyl) ester

CAS Number:               41484-35-9

Chemical Structure:

BNX 1035

Typical Properties

Product Form:  Solid

Melting Point:  63oC (minimum)

Molecular Weight:  642.9 g/mol

Applications

BNX 1035 is widely used for the process stabilization of polyethylene wire and cable resin applications, eliminating the concern over micro-contaminants that can affect the insulation properties of the wire, and it also prevents premature gel formation of chemically cross-linked polyethylene during extrusion compounding. BNX 1035 also provides efficient processing stabilization and long-term thermal stability with excellent system compatibility and low color in styrenic polymers, polypropylene, polyurethanes, polyesters, segmented block copolymers, other rubber modified polymers, and elastomers (including EPDM, SBR, carboxylated SBR latex, and polybutadiene and polyisopropene rubber).

It also provides excellent stabilization in petroleumbased products, including lubricants (such as turbine oils) petrolatum, and higher poly alpha-olefins.

Advantages

  • Provides excellent stability during high temperature processing and long term heat aging
  • Most widely used antioxidant for PE and XLPE wire and cable resins
  • Highly compatible with a wide range of organic substrates
  • Non-staining and non-discoloring
  • Odorless and tasteless
  • Low volatility
  • FDA clearances in adhesives, hydrocarbon resins, rubber products, and lubricants
  • High level of compatibility with carbon black and other stabilizers

Guidelines for Use

The recommended loading concentrations range between 0.2% and 0.3% in polyethylene and carbon black containing polymers, and between 0.3% and 0.4% in polyols. Combinations of BNX 1035 with other antioxidants such as phosphites and thioethers often show synergistic performance. BNX 1035 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.

Storage

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.

Safety

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

FDA Regulations

BNX 1035 is cleared for use in adhesives under 21 CFR §175.105; in pressure-sensitive adhesives, petroleum alicyclic hydrocarbon resins, and finished rubber products under 21 CFR §178.2010; and in lubricants under 21 CFR §178.3570. Please contact your Mayzo representative for complete details, including restrictions of use.

Additional Product Details:  Please view our BNX 1035 PDF

BNX 1037

Overview

BNX 1037 is a high performance multifunctional antioxidant developed for the stabilization of hot melt adhesives based on unsaturated styrenic copolymers (SIS, SBS, SBR, etc.), solvent-based adhesives, water-based adhesives, unsaturated styrenic copolymers, rosin ester tackifiers and polyurethanes.

Chemistry

Chemical Name:               Phenol, 2,4−bis[(dodecylthio)methyl]−6−methyl−

CAS Number:                   110675-26-8

Chemical Structure:

BNX 1037

Typical Properties

Product Form: Solid (below melting temperature)

Melting Point: 28oC

Molecular Weight: 537.0 g/mol

Applications 

BNX 1037 is a high performance, multifunctional antioxidant developed for the stabilization of hot melt adhesives based on unsaturated copolymers (SIS, SBS, SBR, etc.). This product is also suitable for the stabilization of solvent-based adhesives, water-based adhesives, unsaturated block copolymers, and polyurethanes. Due to its unique chemistry it can be used in many applications without co-stabilizers.

Advantages

  • Improves color stability in hot melt adhesives after heat aging
  • Superior viscosity stability in hot melt adhesives after heat aging
  • More effective prevention of skin formation in hot melt adhesives
  • Can be used without co-stabilizers due in many applications

Guidelines for Use

Recommended concentrations in hot melt adhesives range from 0.1 to 1.0%. While the product can often be used without co-stabilizers, combinations with other antioxidants such as phosphites and thioethers often show synergistic performance. BNX 1037 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.

Storage

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.

Safety 

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

FDA Regulations

Please contact your Mayzo representative for complete details.

Additional Product Details: Please view our  BNX 1037 PDF

BNX 1076

Overview

BNX 1076 is a hindered phenolic antioxidant that provides excellent processing and long-term thermal stability in a wide variety of organic substrates such as plastics, synthetic fibers, elastomers, adhesives, waxes, oils, and fats.

Chemistry

Chemical Name:                 Benzenepropanoic acid, 3,5−bis(1,1−dimethylethyl)

                                           −4− hydroxy−, octadecyl ester

CAS Number:                      2082-79-3

Chemical Structure:

BNX 1076

Typical Properties

Product Form:  Solid

Melting Range:  49 – 54oC

Molecular Weight:  530.9 g/mol

Applications

BNX 1076 is a highly effective antioxidant and process stabilizer in polyolefins, including polyethylene, polypropylene, polybutene, and in olefin copolymers such as EVA. It also provides excellent performance in other polymers such as styrenic polymers (including PS, HIPS, ABS, and block copolymers), polycarbonate, acrylics, polyurethanes, PVC, and polyvinylidene chloride. BNX 1076 is also recommended for use in adhesives, elastomers, urethane and acrylic coatings, and many other organic substrates.

Advantages

  • Provides excellent stability during high temperature processing and long term heat aging
  • Compatible with a wide range of organic substances
  • Easily incorporated by melting techniques due to its low melting point
  • Non-staining and non-discoloring
  • Odorless and tasteless
  • Low volatility
  • Extensive FDA clearances
  • Compatibility with other stabilizers and additives

Guidelines for Use

Recommended loading concentrations range between 0.05% and 0.5% in polyolefins, between 0.05 and 0.2% in other polymers, between 0.2% and 1% in hot melt adhesives, and between 0.1% and 0.5% in synthetic tackifier resins. Combinations of BNX 1076 with other antioxidants such as phosphites and thioethers often show synergistic performance. BNX 1076 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.

Storage

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.

Safety 

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

FDA Regulations

BNX 1076 has extensive FDA clearances, including in adhesives under 21 CFR §175.105; in semirigid and rigid acrylic polymers and modified acrylics under 21 CFR §177.1010; and in olefin polymers, polystyrene polymers (including rubber modified polystyrene), acrylonitrile-butadienestyrene copolymers, styrene block copolymers, rigid polyvinyl chloride (including modified with methacrylate-butadiene-styrene copolymers), polycarbonates, ethylene-vinyl acetate copolymers, nitrile rubber-modified acrylonitrile-ethyl acrylate copolymers, vinylidene chloride homopolymers and copolymers, chlorinated isobutylene-isoprene copolymers, and finished rubber articles under 21 CFR §178.2010. Please contact your Mayzo representative for complete details, including restrictions of use.

Additional Product Details:  Please view our BNX 1076 PDF

BNX 1098

Overview

BNX 1098 is an antioxidant that provides excellent processing and long term thermal stability in polyamide (nylon) polymers and fibers and in other materials, including other polymers, elastomers, and adhesives.

Chemistry

Chemical Name:                    Benzenepropanamide, N,N'−1,6−hexanediylbis[3,5−bis(1,1− dimethylethyl)−4−hydroxyl−

CAS Number:                        23128-74-7

Chemical Structure:

BNX 1098

Typical Properties

Product Form:  Solid

Melting Range:  156 – 161oC

Molecular Weight: 637.0 g/mol

Applications

BNX 1098 is especially suited for the long-term thermal and process stabilization of polyamide (nylon) molded parts, fibers, and films. It is also recommended for use in other polymers such as polyacetals, polyester elastomers, polyurethanes, and elastomers as well as other organic substrates such as adhesives and sealants.

Advantages

  • Provides excellent processing and long-term thermal stability with low initial color
  • Resistant to extraction
  • Excellent compatibility with polyamides and other substrates
  • Replaces copper-based stabilizer systems for polyamides
  • Low volatility
  • FDA cleared for use in polyamides

Guidelines for Use

The recommended loading concentrations of BNX 1098 range between 0.1% and 1% in polyamides, between 0.05% and 0.5% in polyacetals, polyurethanes, elastomers, and between 0.05% and 1% in adhesives and sealants. Combinations of BNX 1098 with other antioxidants such as phosphites and thioethers often show synergistic performance. BNX 1098 is also suitable for use in combination with light stabilizers, including hindered amine light stabilizers (HALS) and UV absorbers. 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.

Storage

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.

Safety

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

FDA Regulations

BNX 1098 is cleared under 21 CFR §178.2010 for use as an antioxidant and/or stabilizer in polymers used in the manufacture of articles or components for use in food contact applications, including nylon resins, polyester resins, closures with sealing gaskets, repeated use rubber articles, and polyoxymethylene homo- and copolymers. Please contact your Mayzo representative for complete details, including restrictions of use.

Additional Product Details: Please view our  BNX 1098 PDF

BNX 1135

Overview

BNX 1135 is a liquid hindered phenolic antioxidant that is highly effective for the thermal stabilization of plastics (especially polyols and polyurethanes) and lubricants (especially engine oils and industrial lubricants).

Chemistry

Chemical Name:  Benzenepropanoic acid, 3,5−bis(1,1−dimethylethyl)−4− hydroxy−, C7−9−branched alkyl esters

CAS Number:  125643-61-0

Chemical Structure:

BNX 1135

Typical Properties

Product Form:  Liquid

Freezing Point:  < –30oC

Molecular Weight:  376.6 g/mol

Applications

BNX 1135 is highly effective for the stabilization of polyurethanes, including spray and RIM applications, flexible and rigid foams, and TPU. In polyols it is useful as a storage stabilizer and helps to prevent scorching during foaming. Lubricant applications for which BNX 1135 is ideal include engine, turbine, and compressor oils.

Advantages

  • Improves scorch resistance of polyurethane foams
  • Provides excellent thermal oxidative stability in lubricants at low treat levels
  • Excellent compatibility with a variety of polymers and lubricant base oils
  • Low viscosity, liquid form for ease of handling and dosing
  • Low volatility
  • Resistant to water extraction in lubricants

Guidelines for Use

In polyurethane and polyol applications, recommended loading concentrations range between 0.1% and 0.5%. Typical treat levels in lubricants are 0.2-0.8% in engine oils and 0.1-0.5% in industrial lubricants. BNX 1135 often provides enhanced performance when used in combination with other antioxidants (especially aminic types) and light stabilizers (especially UV absorbers and hindered amine light stabilizers). In both plastic and lubricant applications 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.

Storage 

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.

Safety

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

FDA Regulations

BNX 1135 has not been cleared by the FDA for use in food contact applications.

Additional Product Details: Please view our BNX 1135 PDF

BNX 1425

Overview

BNX 1425P is a multifunctional additive that functions as an antioxidant for the stabilization of plastics, synthetic fibers, elastomers, and rosin ester tackifier resins. The product is also an effective esterification catalyst that is particularly useful in the production of rosin esters and in the solid-state polymerization of PET and other thermoplastic polyesters.

Chemistry

Chemical Name: Phosphonic acid, P−[[3,5−bis(1,1−dimethylethyl)−4− hydroxyphenyl] methyl]−, monoethyl ester, calcium salt (2:1)

CAS Number: 65140-91-2

Chemical Structure:

BNX 1425

Typical Properties

Product Form:  Solid

Melting Range:  >260oC

Molecular Weight:  694.8 g/mol

Applications

BNX 1425P is particularly useful as a stabilizer and esterification catalyst in rosin esters and in PET and other thermoplastic polyesters. It is also effective for the stabilization of polyolefins (particularly polypropylene fibers), cross-linked elastomers, and specialty adhesives.

Advantages

  • In the production of rosin esters, BNX 1425P enables shorter reaction times and gives products characterized by reduced discoloration, a low acid number, and improved heat stability
  • In PET, BNX 1425P provides faster solid-state polymerization, improved color, and reduced generation of acetaldehyde
  • Non-discoloring
  • Excellent resistance to migration and extraction
  • Low-volatility during polycondensation and high temperature processing
  • Extensive FDA clearances

Guidelines for Use

  • In rosin esters, recommended use levels generally range from 0.05 to 1% by weight. BNX 1425P can be used in combination with other additives in rosin esters, including antioxidants, disproportionation agents, and light stabilizers.
  • In PET, recommended use levels range from 0.01 to 0.2% by weight. The product may be added at different stages in PET production, for example in slurry preparation (as a solution in ethylene glycol), during the esterification step, or after finishing (by extrusion compounding).
  • In processes utilizing phosphoric acid, sequential addition is necessary to avoid undesired interactions. BNX 1425P can be used in combination with other additives in polyesters, including antioxidants, UV absorbers, and benzoate light stabilizers.

In all applications, 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.

Storage

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.

Safety

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

FDA Regulations

BNX 1425P is cleared under 21 CFR §178.2010 for use in polypropylene, polyethylene, adhesives and pressure-sensitive adhesives, rosins and rosin derivatives, can end and side seam cement formulations, petroleum alicyclic hydrocarbon resins, resins and polymers used as components of paper and paperboard, closures with sealing gaskets, finished rubber articles, reinforced wax, and polyethylene phthalate polymers. Please contact your Mayzo representative for complete details, including restrictions of use.

Additional Product Details: Please view our BNX 1425 PDF

BNX 2246

Overview

BNX 2246 is a hindered phenolic antioxidant and thermal stabilizer providing effective stabilization in adhesives, ABS, polyolefins, and other substrates.

Chemistry

Chemical Name: Phenol, 2,2'−methylenebis[6−(1,1−dimethylethyl)−4−methyl−

CAS Number:     119-47-1

Chemical Structure:

BNX 2246

Typical Properties

Product Form:  Solid

Melting Range:  120 – 132oC

Molecular Weight:  340.5 g/mol

Applications

BNX 2246 is an excellent, non-discoloring, non-staining antioxidant and thermal stabilizer. Typical applications include hot-melt adhesives, natural rubber adhesives, ABS, EVA, polyolefins (polypropylene, polyethylene, EVA), polyacetal homo- and copolymers, and elastomers. BNX 2246 also functions as an oxidation inhibitor for fats, oils and paraffin wax.

Advantages

  • Low volatility
  • Compatible with a wide variety of systems
  • Low migration effects
  • FDA cleared for use in adhesives, rubber articles, polyolefins, and polyacetals

Guidelines for Use

Recommended concentrations for use in plastics and adhesives range from 0.05 to 0.5%. Combinations of BNX 2246 with other antioxidants such as phosphites and thioethers often show synergistic performance. BNX 2246 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.

Storage

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.

Safety

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

FDA Regulations

BNX 2246 is cleared for use in adhesives under 21 CFR §175.105, rubber articles intended for repeat use under 21 CFR §177.2600, and in olefin polymers and polyoxymethylene homo- 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 2246 PDF

BNX 3052

Overview

BNX 3052 is a multifunctional antioxidant for the stabilization of adhesives, elastomers, and

plastics. Unlike conventional phenolic antioxidants, BNX 3052 is effective to scavenge alkyl

(carbon-centered) radicals. The product is particularly active under demanding processing

conditions (high temperature, high shear) and under anaerobic conditions.

Chemistry

Chemical Name: 2−Propenoic acid, 2−(1,1−dimethylethyl)−6−[[3−(1,1− dimethylethyl)−2−hydroxy−5−methylphenyl]methyl]−4− methylphenyl ester

CAS Number: 61167-58-6

Chemical Structure:

BNX 3052

Typical Properties

Product Form:  Solid

Melting Range:  134 – 138oC

Molecular Weight:  394.6 g/mol

Applications

BNX 3052 is particularly useful for the stabilization of adhesives and elastomers derived from butadiene and other dienes, for example polybutadiene and copolymers of polybutadiene and other monomers. The product is also effective in the stabilization of HIPS, ABS, SBS, SBR, NR, EPDM, and hydrocarbon resins.

Advantages

  • Highly effective to prevent gel formation in butadiene homo- and co-polymers, especially during processing under anaerobic conditions
  • Non-discoloring and low volatility
  • Excellent resistance to extraction
  • FDA-cleared for use in adhesives, styrenic block copolymers, ABS, polystyrene, and rubbermodified polystyrene

Guidelines for Use

The recommended loading levels in adhesives, elastomers, and plastics range between 0.05 and 0.5%. Best results in terms of processing and thermal oxidative stability are generally obtained by combining BNX 3052 with conventional phenolic antioxidants and secondary antioxidants (phosphites, thiosynergists, and the like). BNX 3052 can also be used in combination with light stabilizers such as 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.

Storage 

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.

Safety 

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

FDA Regulations

BNX 3052 is cleared under 21 CFR §178.2010 for use in polystyrene (including rubber modified polystyrene), styrene block copolymers, adhesives and pressure-sensitive adhesives, and acrylonitrile-butadiene-styrene copolymers. Please contact your Mayzo representative for complete details, including restrictions of use.

Additional Product Details:  Please view our  BNX 3052 PDF

BNX 3595

Overview

BNX 3595 is a high performance; multifunctional antioxidant system specially developed for the stabilization of unsaturated elastomers such as polybutadiene, polyisoprene, styrene-butadiene rubber, and styrenic block copolymers such as SIS and SBS.  It is also useful for the stabilization of hot melt adhesives (especially those derived from unsaturated elastomers) and rosin ester tackifier resins.

Chemistry

Chemical Name:                     Proprietary

CAS Number:                         Proprietary

Chemical Structure:               Proprietary

Typical Properties         

Product Form:                         Solid

Applications

BNX 3595 provides outstanding stabilization performance in unsaturated elastomers such as polybutadiene, polyisoprene, styrene-butadiene rubber, and styrenic block copolymers such as SIS and SBS. It is also effective for the stabilization of hot melt adhesives (especially those derived from unsaturated elastomers) and rosin ester tackifier resins. BNX 3595 helps to prevent the degradation of materials from exposure to heat during processing operations and end use that can lead to problems such as gel formation, changes in viscosity, and discoloration.

Advantages

  • Highly effective to prevent gel formation, chain scission, and discoloration in unsaturated elastomers
  • Improves resistance to discoloration and viscosity stability in hot melt adhesives
  • Improves the melt stability of rosin ester tackifier resins
  • Non-discoloring and non-staining for color critical applications
  • Low-volatility for use in high temperature processing operations

Guidelines for Use

Recommended loading levels range between about 0.02 and 1% by weight, depending upon the substrate, processing conditions, end use, and other performance requirements. BNX 3595 may be used in combination with other additives, including ultraviolet absorbers, hindered amine light stabilizers (HALS), benzoate light stabilizers, and antioxidants (primary and/or secondary types). 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.

Storage

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

Safety

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

FDA Regulations

Please contact your Mayzo representative for information on the FDA status of this product.

Additional Product Details: Please view our BNX 3595 PDF

BNX 8000

Overview

BNX 8000 is an outstanding non-staining polymeric sterically hindered phenolic antioxidant, which is highly active and can be used at low concentrations.  It is an excellent antioxidant for natural and synthetic rubbers.  It can be used in latex and other waterbased applications and dispersions.  BNX 8000 has low water solubility and non-volatility characteristics.

Chemistry

Chemical Names:       Butylated reaction product of p-cresol and dicyclopentadiene

CAS Numbers:           68610-51-5

Chemical Structure:

 BNX 8000

 Typical Properties         

Product Form:                         solid

Molecular Weight:                   600-800 g/mol

Melting Range:                        >104°C

Specific Gravity @ 20°C        1.04

Bulk Density:                           358 kg/m3

Applications

BNX 8000 is an excellent antioxidant for natural and synthetic polymers based on isoprene and/or butadiene, including uncured, sulfur-cured, and peroxide-cured systems. The product is recommended for use in a wide range of end use applications, including adhesives, molded rubber products, latex products, shoe soles, carpet backing, automotive mats, white side walls, etc. BNX 8000 also provides excellent thermal stability in styrenic polymers (ABS, ASA, SIS, SBS, MBS, SBR, and others.).

It is also suitable for use in aqueous dispersions.

Advantages 

  • Provides excellent aging resistance in natural and synthetic rubber formulations
  • Provides excellent protection for SIS formulated and natural rubber based pressure sensitive adhesives and neoprene-based solution adhesives
  • Non-discoloring / non-staining
  • Excellent resistance to extraction
  • Low volatility
  • FDA cleared in adhesives, rubber articles for repeat use, and in ABS

Guidelines for Use

Recommended concentrations in elastomers and adhesives range from 0.1 to 3%. Combinations of BNX 8000 with other antioxidants such as phosphites and thioethers often show synergistic performance. BNX 8000 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.

Storage

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.

Safety

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

FDA Regulations

BNX 8000 is cleared for use in adhesives under 21 CFR §175.105, for use in pressure-sensitive adhesives, under 21 CFR §175.125, in rubber articles intended for repeat use under 21 CFR §177.2600, and in acrylonitrile-butadiene-styrene 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 8000 PDF

BNX TAHQ

Overview

BNX TAHQ is a sterically hindered dihydroxybenzene antioxidant and stabilizer.  BNX TAHQ is non-staining and non-discoloring antioxidant recommended for use in unvulcanized rubber adhesives, tapes and films.

Chemistry

Chemical Name:                     2,5-Di(tert-amyl) hydroquinone

CAS Number:                         79-74-3

Chemical Structure:

BNX TAHQ

Typical Properties         

Product Form:                         Solid

Melting Point:                          177 – 179oC

Molecular Weight:                   250 g/mol

Applications

BNX TAHQ provides highly effective protection against the effects of oxygen and sun cracking in un-vulcanized rubber adhesives. Other recommended applications include hot melt adhesives, adhesive films for tape applications, and for stabilization of polymers and elastomers.

Advantages

  • Non-staining and non-discoloring
  • Improves long-term stability
  • Prevents loss of tack and decreased oxygen uptake in un-vulcanized rubber adhesives
  • FDA cleared for use in adhesives and rubber articles

Guidelines for Use

Recommended concentrations for use in adhesives range from 0.5 to 1.5%. Combinations of BNX TAHQ with other antioxidants such as hindered phenols, phosphites, thioethers, and multifunctional antioxidants often show synergistic performance. BNX TAHQ is also suitable for use in combination with light stabilizers. 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.

Storage

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.

Safety

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

FDA Regulations 

BNX TAHQ is cleared for use in adhesives under 21 CFR §175.105 and in rubber articles intended for repeat use under 21 CFR §177.2600. Please contact your Mayzo representative for complete details, including restrictions of use.

Additional Product Details:  Please view our BNX TAHQ PDF