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WESTON™ 430
Specialty alkyl phosphite antioxidant that effectively stabilizes heat, color and viscosity in a variety of polymers.
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
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.
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Thank you
Thank you for your inquiry and interest in ChemPoint. We will respond to you shortly.
ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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