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  

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

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
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

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

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

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

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

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

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

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

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

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

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

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

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

Product Details:  Please view our BNX TAHQ PDF