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.
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:
Typical Properties
Product Form: Solid
Melting Range: 76 - 79oC
Molecular Weight: 586.8 g/mol
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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−(1,1−dimethylethyl)−5−methyl−
CAS Number: 96-69-5
Chemical Structure:
Typical Properties
Product Form: Solid
Melting Range: 160oC
Molecular Weight: 358.5 g/mol
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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:
Typical Properties
Product Form: Solid
Melting Range: ≥ 115oC
Molecular Weight: 548.8 g/mol
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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:
Typical Properties
Product Form: Solid
Melting Range: 94 – 96oC
Molecular Weight: 589.0 g/mol
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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:
Typical Properties
Product Form: Solid
Melting Range: 110 -125oC
Molecular Weight: 1177.6 g/mol
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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:
Typical Properties
Product Form: Solid
Melting Point: 63oC (minimum)
Molecular Weight: 642.9 g/mol
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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:
Typical Properties
Product Form: Solid (below melting temperature)
Melting Point: 28oC
Molecular Weight: 537.0 g/mol
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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:
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.
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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:
Typical Properties
Product Form: Solid
Melting Range: 156 – 161oC
Molecular Weight: 637.0 g/mol
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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:
Typical Properties
Product Form: Liquid
Freezing Point: < –30oC
Molecular Weight: 376.6 g/mol
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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:
Typical Properties
Product Form: Solid
Melting Range: >260oC
Molecular Weight: 694.8 g/mol
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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:
Typical Properties
Product Form: Solid
Melting Range: 120 – 132oC
Molecular Weight: 340.5 g/mol
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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:
Typical Properties
Product Form: Solid
Melting Range: 134 – 138oC
Molecular Weight: 394.6 g/mol
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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
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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:
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
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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:
Typical Properties
Product Form: Solid
Melting Point: 177 – 179oC
Molecular Weight: 250 g/mol
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