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WESTON™ DPDP
WESTON™ DPDP is an alkyl-aryl phosphite ester antioxidant that provides color and processing stability in polymers that do not require food contact approvals.
Fulfilled By ChemPoint
- Manufacturer: SI Group
- Product Line: SI Group Phosphite Antioxidants
- Product: WESTON™ Liquid Phosphite Ester Antioxidants
- Industries: Adhesives | Elastomers | Metal Processing & Fabrication | Plastics | Silicones
- Authorized Countries: Canada | Mexico | United States
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Overview
WESTON™ DPDP is an alkyl-aryl phosphite ester antioxidant that provides color and processing stability in polycarbonate, polyurethanes, ABS polymers, and coatings. It also functions as a secondary antioxidant in PVC.
Specifications
Form: Liquid
Color: Clear
CAS number: 26544-23-0
Specific gravity @ 25°C: 1.022–1.032
Acid number: 0.05 mg KOH/g
Refractive index @ 25°C: 1.5160–1.5190
Phosphorus content: 8.3%
Color (APHA, Pt-Co): 50 max
Molecular weight: 374 g/mol
Flash point (closed cup): 154°C
Viscosity @ 38°C: 10.3 cps
Density @ 25°C: 1.03 g/mL
Vapor pressure @ 5 mm Hg: 170°C
Soluble: Most common aprotic organic solvents
Primary Chemistry: Diphenyl isodecyl phosphite
Features & Benefits
Can function as both a primary and a secondary antioxidant
Problems Solved
Staining or coloring issues in plastics for non-food applications
Limited flexibility of phosphite antioxidants for use as primary or secondary antioxidants
Applications
Automotive
Commercial vehicle components
Consumer goods
Outdoor recreational products
Agriculture tools
Packaging products
Building and construction
Related Chemistries
Plastics
Related End Markets
Elastomers
Metal Processing & Fabrication
Plastics
Silicones
Related Functions
Adhesives
SI Group Phosphite Antioxidants Articles
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SI Group WESTON™ Phosphite Antioxidants
The SI Group portfolio of WESTON™ phosphite antioxidants protects plastics and elastomers from peroxide decomposers and offers excellent synergism with primary antioxidants, such as hindered phenols.
SI Group | Building and Construction Plastic Additives
SI Group polymer solutions are essential for the long-term performance benefits for countless building and construction plastic applications.
Stabilization and Processing of Recycled Plastics
Compounders and recyclers face multiple challenges with the stabilization and processing of recycled plastics. Learn more and explore our solutions
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