Nonylphenol-free phosphite antioxidant, designed as a drop-in replacement for TNPP with a 20% lower loading rate.
WESTON™ 705 is an industry pioneering phosphite stabilizer which is free of nonylphenol. It can be used in a variety of polymer systems such as HDPE, LLDPE, SBR, NBR, SBC, SBS, ABS, PVC.
WESTON™ 705 reduces both plate-out and gel formation by a factor of 10. Based on proprietary chemistry and technology, it has been developed to replace TNPP in food-contact applications.
WESTON™ 705 is excellent for use in polyols and polyurethane systems as alternative to TNPP or in applications with nonylphenol restrictions.
Appearance: Colorless liquid free of particulates
Phosphorus Content: 5.2%
Assay: > 98%
Specific Gravity (@ 25°C, @ 15°C): 1.004, 1.035
Acid Number: <0.5 mg KOH/g
Primary Chemistry: Proprietary Phosphite
Nonylphenol-free
Drop-in replacement for TNPP, able to reduce loading by 20% while matching TNPP performance
Superior solubility in PE
Compared to AO168/ALKANOX® 240
Tenfold reduction in plate-out
Tenfold reduction in gel formation
90% less additive blooming
Threefold improvement in melt flow retention
Allows for increased usage of regrind
Threefold improvement in color retention upon exposure to NOx gas
Broad food contact approvals
High loading rate of TNPP and other phosphite antioxidants
Nonylphenol regulatory restrictions in formulations
Limited alternatives of TNPP antioxidants for use in food contact applications
Food packaging
Flexible foams and polyol formulations
Elastomeric polyurethane systems
The portfolio of WESTON™ liquid phosphite antioxidants offers excellent synergism, improved color, and processing stability and offers a variety of food contact approvals depending on your plastic applications.
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 offers a broad range of plastic additives for the stability and durability of your packaging plastics. Learn more today!
Compounders and recyclers face multiple challenges with the stabilization and processing of recycled plastics. Learn more and explore our solutions
SI Group offers one of the world’s largest stabilizer technology platforms for polyol and polyurethane applications.
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