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Plastic Additives

Irgafos® for Plastics

Irgafos® - Antioxidant and Process Stabilizer for Plastic Applications

Irgafos® comprises a range of secondary antioxidants for use in organic substrates such as plastics, synthetic fibers and elastomers. It ensures thermal protection and long-term durability as well as the integrity of polymer properties during processing.

Basket with Irgafos®

Irgafos® processing stabilizers and blends thereof are the market reference recommended to ensure processing stability (color and viscosity retention). They protect polymers from thermo-oxidative degradation during processing.
As a secondary antioxidant, they react with hydroperoxides formed by auto-oxidation of polymers, preventing process induced degradation and extending the performance of the primary antioxidant.
Irgafos® branded process stabilizers are available in all regions of the world offering the polymer value chain the required stabilization, manufacturing flexibility and supply security. BASF representatives are available globally to assist in identifying the appropriate Irgafos® process stabilizers for your application.

Benefits

Thermal protection and processing stability for plastics

  • Excellent processing stability
  • Prevention of polymer discoloration due to degradation
  • Hydrolytically stable phosphite processing stabilizer
  • Synergistic performance when used in combination with primary antioxidants from the Irganox® range

Versatile Application Range

The applications are as manifold as the properties of our products: Explore the various application possibilities!

Solutions

We support our customers in developing application-oriented solutions.

Thermal Stabilization

BASF provides additives such as thermal stabilizers that enable plastics to reliably cope with the industry’s challenges from processing to the whole lifetime of the final plastic parts.

Additives for Polyamide

Various structures are commercially produced; PA 6, PA 6,6, PA 4,6, PA 11 and PA 12 are the most important. Traditionally, aliphatic polyamides are stabilized with small amounts of copper salts.

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Additives for Polycarbonate

Polycarbonate discolors as a manifestation of autoxidation. This is of major concern, because, besides its high impact strength, the primary commercial properties of PC are its optical properties such as transparency.

Additives for Polyethylene

Sterically hindered phenols are powerful stabilizers for the melt processing of polyolefins. The combination of a sterically hindered phenol and a phosphyte is more effective in many instances than a phenol alone.

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Additives for Polyesters

PET is usually processed and used without the addition of antioxidants. However BASF offers products to improve properties of PET against aging in specific conditions. PBT is somewhat less stable under long term thermal exposure conditions.

Additives for Polypropylene

Sterically hindered phenols are powerful stabilizers for the melt processing of polyolefins. The combination of a sterically hindered phenol and a phosphyte is more effective in many instances than a phenol alone.

Additives for Polyurethanes

Polyurethanes are mostly used as flexible molded foams, flexible slabstock foams, rigid microcellular foams (RIM-PUR), and thermoplastic polyurethanes (T-PUR).

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Additives for Styrenics

Polystyrene is a standard thermoplastic. BASF has a variety of antioxidants for the stabilization of styrenics.