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Description

ANTIOX AHM is a synergistic blend of five non staining antioxidants, including three primary phenolic stabilizers, a thio-ester for the long term stability, and finally a phosphite, for the high temperature protection. Its physical form, allows very low dust formation in handling and good flowing properties.

Application

This formula is specially designed for a wide spectrum protection either of hot-melt polymer systems or of polymer solutions. It can be used with adhesives, pressure sensitive adhesives, coatings, injection moulding or extrusions.

Technical Specifications

Handling

1. For HOT-MELT adhesives, ANTIOX AHM is very efficient at the following concentrations:
   • thermoplastic rubbers, like SIS, SBS (e.g. Cariflex, Solprene, etc.): 1.2 - 1.5% on rubber content;
   • ethylene-vinylacetate (EVA, type ELVAX, etc.): 0.3 - 0.5% on EVA content;
   • thermoplastic polyurethanes (e.g. ESTANE, DESMOCOLL, etc.): 0.2 - 0.4% on PU content;
   • polyamides (e.g. Reammide, Versamide, etc.): 0.5 - 1.0% on PA content.
     
2. For SOLVENT BASED adhesives, ANTIOX AHM is very efficient at the following concentrations:
   • natural rubber, SBR, chloroprene rubber, polyisoprene, butyl rubber: 0.25 - 0.5% on dry content.

ANTIOX AHM can be introduced directly into the compound, together with other recipe ingredients, or predispersed into one of them or dissolved (if it is a matter of solvent).

In the hot-melt continuos system (by extrusion process) it is advisable that a liquid component (like liquid rosin esters or naphtalic oil, etc.) is used to give some tack to the surface of granules, in order to have a fair distribution over the total mass. In the solvent systems, one can make a solution concentrate (exane, toluene, etc.), for example at 5 - 10% of solids.

Packing

ANTIOX AHM is normally supplied in 40-50 kg fibre drums.

Storing

ANTIOX AHM must be stored in a dry place to avoid agglomeration. Shelf life is 1 year.