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WESTON™ 430
Specialty alkyl phosphite antioxidant that effectively stabilizes heat, color and viscosity in a variety of polymers.
Fulfilled By ChemPoint
- Manufacturer: SI Group
- Product Line: SI Group Phosphite Antioxidants
- Product: WESTON™ Liquid Phosphite Ester Antioxidants
- Industries: Adhesives | Plastics
- Authorized Countries: Canada | Mexico | United States
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Overview
WESTON™ 430 is a specialty alkyl phosphite antioxidant that is particularly effective at stabilizing color, heat, and viscosity in polymers such as polyester fibers. WESTON™ 430 has a hydroxyl number of 395 mg KOH/g.
Specifications
Appearance: Clear liquid
Specific gravity @ 25°C: 1.088–1.098
CAS number: 36788-39-3
Molecular weight: 430 g/mol
Color (Pt-Co): 50 max
Acid number: 0.20 mg KOH/g max
Refractive index @ 25°C: 1.4600–1.4635
Viscosity @ 38°C: 42.2 cps
Phosphorus content: 7.2%
Density @ 25°C: 1.09 g/mL
Vapor pressure @ 10 mm Hg: 145°C
Flash Point (Closed Cup): 118°C
Primary Chemistry: Tris (dipropylene glycol) phosphite
Features & Benefits
Excellent color stability
Stabilizes viscosity
Problems Solved
Poor color stability or staining with the use of traditional phosphite or phosphite ester stabilizers
Limited viscosity control in the processing of polyesters or polyolefin products
Applications
Polyester fibers
Polyurethanes
Nylon
Related Chemistries
Plastics
Related Functions
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