Thiosynergists

Thiosynergists

Thiosynergists also function by decomposing peroxides. When used in combination with phenolic antioxidants, they provide unsurpassed protection to plastics against exposure to elevated temperatures during end-use. However, they are generally less effective than phosphites in providing protection during high temperature processing operations.  Thiosynergists are generally used for applications requiring good long term thermal stability.  Such applications include wire and cable, pipe, polyolefin under the hood automotive and adhesives.


BNX® DLTDP

Introduction:

BNX® DLTDP is a thioether antioxidant.  High solubility and superior properties make it particularly suitable for the protection of plastics, rubber, synthetic fibers, and petroleum products agains deterioration and discoloration.  Used in combination with phenolic primary antioxidants, it has proven particularly effective as a result of synergistic effects.

Material Description:   Thioether antioxidant and process stabilizer for resins, adhesives, plastics, and lubricants.

Chemical Names:  Propanoic acid, 3,3’-thiobis- 1,1’-didodecyl ester (TSCA name)

Dilauryl thiodipropionate (common name)

Molecular Formula:      C30H58O4S

CAS Number:               123-28-4

Molecular Weight:       514.86 g/mol

Chemical Structure:  

BNX DLTDP

Physical Properties:    

Acid value:                                       1.00 maximum

Appearance:                                     White crystalline beads or flakes

Flash point:                                       160oC (open cup)

Melting range:                                      39-42oC

Specific gravity:                                   1.01-1.04

Applications

BNX DLTDP is a highly effective to improve the long-term thermal stability in a wide range of resins, adhesives, plastics, and lubricants. Combinations of BNX DLTDP with phenolic primary antioxidants (e.g. BNX 1010, BNX 1035, BNX 1076, and others) provide outstanding long-term thermal stability in polyolefins (polypropylene, polyethylene, TPO) for demanding applications such as pipe, power cables, and under-the-hood automotive components. These systems are also highly useful in styrenic polymers (e.g. ABS), acrylics, PVC, hot melt adhesives, and lubricants.

Advantages

  • Provides excellent protection to polyolefins in high temperature end use applications
  • Synergistic performance with phenolic primary antioxidants
  • Non-discoloring and non-staining
  • Excellent compatibility with plastics, elastomers, and lubricants
  • Readily soluble in a wide range of organic solvents
  • Broad FDA clearances

Guidelines for Use

Recommended concentrations for use in plastics and adhesives range from 0.05 to 1% by weight. Combinations of BNX DLTDP with primary antioxidants (phenolic antioxidants and multifunctional types) provide synergistic performance. BNX DLTDP is also suitable for use in combination with phosphite process stabilizers and light stabilizers (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 DLTDP is considered “generally recognized as safe” (GRAS) for use as a food additive under 21 CFR §182.3280. It is also cleared for use in resinous and polymeric coatings under 21 CFR §175.300, in semi-rigid and rigid acrylic and modified acrylic plastics under 21 CFR §177.1010, and as an antioxidant employed in the manufacture of food-packaging materials under prior sanction (21 CFR §181.24). Please contact your Mayzo representative for complete details, including restrictions of use.

Additional Product Details:  Please view our  BNX DLTDP PDF

BNX DSTDP

Introduction:

BNX DSTDP is a thioether-type antioxidant that functions by scavenging peroxides formed during the thermal oxidative degradation of plastics and other organic materials.  Combinations of this product with hindered phenolic antioxidants (e.g. BNX 1010) provide outstanding thermal stability in polyolefins, styrenic polymers, and engineering plastics.  BNX DSTDP is non-discoloring, has good compatibility with polyolefins, styrenic polymers, and adhesives, and has low odor relative to other sulfur-based antioxidants.

Material Description:            Thioether Antioxidant/Heat Stabilizer

Chemical Name:                   Dioctadecyl 3,3’-thiodipropionate

CAS #:                                   693-36-7

Molecular Weight:                683 g/mol

Chemical Structure:

Physical Properties:            Appearance:                   White to off-white flakes

Melting Point:                  64-67°C

Flash Point:                     257oC (Markusson)

Solubility in Water:           <0.1 mg/L

Applications

BNX DSTDP is a highly effective to improve the long-term thermal stability in a wide range of resins, adhesives, plastics, and lubricants. Combinations of BNX DSTDP with phenolic primary antioxidants (e.g. BNX 1010, BNX 1035, BNX 1076, and others) provide outstanding long-term thermal stability in polyolefins (polypropylene, polyethylene, TPO, including filled grades) for demanding applications such as pipe, power cables, and under-the-hood automotive components. These systems are also highly useful in styrenic polymers (e.g. ABS, HIPS), hot melt adhesives, and lubricants.

Advantages

  • Provides excellent protection to polyolefins in high temperature and end use applications
  • Synergistic performance with phenolic primary antioxidants
  • Non-discoloring and non-staining
  • Low odor, low volatility
  • Broad FDA clearances

Guidelines for Use

Recommended concentrations for use in plastics and adhesives range from 0.05 to 1% by weight. Combinations of BNX DSTDP with primary antioxidants (phenolic antioxidants and multifunctional types) provide synergistic performance. BNX DSTDP is also suitable for use in combination with phosphite process stabilizers and light stabilizers (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 DSTDP is cleared for use in adhesives under 21 CFR §175.105, in resinous and polymeric coatings under 21 CFR §175.300, in semi-rigid and rigid acrylic and modified acrylic plastics under 21 CFR §177.1010, and as an antioxidant employed in the manufacture of food-packaging materials under prior sanction (21 CFR §181.24). Please contact your Mayzo representative for complete details, including restrictions of use.

Additional Product Details: Please view our  BNX DSTDP PDF