Antioxidant 1076 CAS 2082-79-3

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CAS:2082-79-3

Molecular Formula:C35H62O3

Molecular Weight:530.86

EINECS:218-216-0

Antioxidant 1076 CAS 2082-79-3 is a highly effective hindered phenolic antioxidant with excellent compatibility with most polymers. It has a good effect of preventing the discoloration caused by light and heat, and also has a certain light stabilization effect. Antioxidant 1076 is white or yellowish solid powder at room temperature and pressure, soluble in ketones, aromatic hydrocarbons, ester hydrocarbons, chlorinated hydrocarbons and alcohol, insoluble in water. Although it will gradually hydrolyze in contact with water, it has sufficient stability during the effective period of water-based emulsifiers.

Item	Specification
Melting point	50-52 °C(lit.)
Boiling point	568.1±45.0 °C
Density	0.929±0.06 g/cm3
Flash point	>230 °F
LogP	13.930 (est)
Acidity coefficient (pKa)	12.33±0.40

Antioxidant 1076 is a classic mono-phenolic hindered antioxidant widely used in polyolefins, elastomers, adhesives, and engineering polymers. Due to its low volatility, excellent compatibility, and low discoloration properties, it is particularly suitable for polymer systems requiring long-term thermal aging resistance and clean appearance retention.

1. Polyethylene Film & Packaging Materials

Antioxidant 1076 is extensively used in LDPE, HDPE, LLDPE, cast film, agricultural film, and food packaging applications. It helps prevent oxidation during extrusion and improves long-term flexibility and transparency retention in thin-film products.

Because of its low volatility and extraction resistance, Antioxidant 1076 is highly suitable for flexible packaging and polymer systems requiring stable long-term performance.

For processing stabilization in polyolefin extrusion, it is frequently used together with Antioxidant 168.

2. Thermoplastic Elastomers (TPE / TPV / TPU)

Antioxidant 1076 performs well in SBS, SEBS, TPE, TPV, and TPU compounds. It helps maintain elasticity, reduces thermal cracking, and improves long-term heat aging resistance in soft-touch elastomer products.

Typical applications include:

automotive interior soft parts
cable sheathing
footwear materials
sealing strips
consumer elastomer products

3. Hot Melt Adhesives & EVA Systems

In EVA hot melt adhesives and pressure-sensitive adhesives, Antioxidant 1076 minimizes viscosity change and discoloration caused by prolonged thermal exposure in glue tanks and coating equipment.

It can also work synergistically with IRGANOX 3052 in adhesive systems requiring lower migration and enhanced anti-blooming performance.

4. Wire & Cable Compounds

The product is commonly used in cable insulation materials and polyolefin wire compounds exposed to continuous thermal aging conditions. It helps maintain electrical insulation stability and reduces oxidative embrittlement over time.

5. Synthetic Fibers & Nonwoven Materials

Antioxidant 1076 is suitable for PP fiber, nonwoven fabric, and melt-blown material production, where thermal stability during melt spinning is critical for maintaining mechanical performance and appearance.

Explore more polymer stabilization materials on the Unisunchem Home Page or browse the Uniaox® Antioxidant Collection.

Excellent long-term thermal oxidation resistance in polyolefins
Low volatility and strong extraction resistance for flexible polymer systems
Good compatibility with PE, EVA, TPE, TPU, and elastomers
Non-discoloring performance suitable for light-colored applications
Helps reduce viscosity drift during adhesive processing
Excellent stabilization performance in films and nonwoven materials
Effective for thin-wall extrusion and melt-spinning applications
Suitable for food packaging and medical-grade polymer systems in many formulations
Strong synergy with phosphite antioxidants in high-temperature processing systems
Reliable industrial supply from Unisunchem

25kg/drum or according to customer requirements.

Q1: Why is Antioxidant 1076 commonly used in polyethylene film applications?

Antioxidant 1076 has low volatility and excellent extraction resistance, making it highly suitable for PE film processing where transparency, flexibility, and long-term aging stability are important. It helps reduce oxidation during blown film extrusion and long-term storage.

Q2: What is the difference between Antioxidant 1076 and Antioxidant 1010?

Antioxidant 1010 is a higher molecular weight antioxidant mainly focused on long-term stabilization, while Antioxidant 1076 provides faster processing protection and better compatibility in flexible polymer systems such as EVA, TPE, and adhesives.

Q3: Is Antioxidant 1076 suitable for food packaging materials?

Yes. Antioxidant 1076 is widely used in food-contact polyolefin packaging formulations because of its low volatility, non-discoloring characteristics, and excellent long-term stabilization performance in polyethylene systems.

Q4: Why is Antioxidant 1076 used in hot melt adhesives?

During adhesive processing, prolonged heat exposure can cause viscosity instability and yellowing. Antioxidant 1076 helps maintain adhesive color, bonding consistency, and thermal stability in EVA and pressure-sensitive adhesive formulations.

Q5: Can Antioxidant 1076 be used in nonwoven polypropylene production?

Yes. Antioxidant 1076 is commonly used in melt-blown and spunbond PP nonwoven production because it improves thermal stability during melt spinning and helps maintain fiber strength and appearance.