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Irgafos® 168

Irgafos 168 is a hydrolytically stable phosphite processing stabilizer. As a secondary antioxidant, Irgafos 168 reacts during processing with hydroperoxides formed by autoxidation of polymers preventing process induced degradation and extending the performance of primary antioxidants.

Additional information

Supplier

Additive Classification

Antioxidant

Industry

Automotive & Transportation, Building & Construction, Home Renovation, Marine Vessels, Paints & Coatings

Features/benefits

Irgafos 168 is an organophosphite of low volatility and is particularly resistant to hydrolysis. It protects polymers which are prone to oxidation, during the processing steps (compounding/pelletizing, fabrication and recycling) from molecular weight change (by chain scission or crosslinking) and prevents discoloration. Irgafos 168 performs best when combined with other BASF antioxidants. Blends of Irgafos 168 with hindered phenols of the Irganox® range (Irganox B-blends) are particularly effective. The hindered phenols additionally provide storage stability and give the polymer long term protection against thermooxidative degradation. Irgafos 168 comprised in phenol free systems with other appropriate BASF stabilizers addresses specific stabilization requirements.

Applications

The application range of Irgafos 168 – synergistically combined with other BASF anti-oxidants – comprises polyolefins and olefin-copolymers such as polyethylene (e. g. HDPE, LLDPE), polypropylene, polybutene and ethylene vinylacetate copolymers as well as polycarbonates and polyamides. The blends can also be used in polyesters, styrene homo- and copolymers, adhesives and natural and synthetic tackifier resins, elastomers such as BR, SEBS, SBS, and other organic substrates. Irgafos 168 blends can be used in combination with light stabilizers of the Uvinul®, Tinuvin® and Chimassorb® range.

Perkadox BC-FF

Brand:Perkadox®
Chemical family:Organic peroxide
CAS number:80-43-3
Physical form:Crystal
Molecular Weight:270.4
Concentration:5.86% min.
Chemical name:Dicumyl peroxide

ZC-128

Brand:Polylite
Physical State:liquid
Epoxy Equivalent (g/eq):184~190
Color (Gardner):1.0max
Flash Point (℃):150↑
Viscosity (cps, at 25℃):12000~15000
Hydrolyzable Chlorine Content (ppm):1000↓
Specific Gravity (g/cm³, 25℃):1.16

Trigonox HMa

Brand:Trigonox®
Chemical family:Organic peroxide
CAS number:37206-20-5
Physical form:Liquid
Chemical name:Methyl isobutyl ketone peroxide

Butanox LPT-IN

Brand:Butanox®
Chemical family:Organic peroxide
CAS number:1338-23-4
Physical form:Liquid
Chemical name:Methyl ethyl ketone peroxide in diisononyl phthalate

ZC-915

Appearance: Brown-yellow transparent liquid
Density: 1.05-1.07kg/L
Viscosity: 1 350±100cps
Solid content: 55±1%
Gelation time: 2 15±5min
Shelf life: 6 months (below 25℃)

ZC-907 Vinyl Resin

Appearance: light yellow transparent liquid
Density: 1.06±0.02kg/L
Viscosity: 430±150 cps (LVT#3-60rpm/25℃)
Solid content: 62±1.5%
Gelation time: 15-25 minutes

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