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Irgatec® CR 76 IC

Technical Datasheet | Supplied by BASF
Irgatec® CR 76 IC by BASF is a sterically hindered hydroxylamine ester in a polymer matrix. It is a novel, peroxide free polymer modifier for polypropylene. It allows a controlled degradation of polypropylene during processing leading to a narrow molecular weight distribution. It is characterized by a low content of volatiles. It is highly efficient at extrusion temperatures exceeding 250°C and therefore particularly suited for polypropylene meltblown applications. Irgatec® CR 76 IC is available as a pre-dispersed concentrate, which guaranties a homogeneous distribution during extrusion. Polypropylene meltblown nonwovens produced with Irgatec® CR 76 IC exhibit higher hydrostatic height, improved air permeability as well as higher long-term thermal stability. The mechanical properties such as tenacity and elongation are also improved. Typical concentrations for the production of polypropylene melt blown nonwovens are between 1-2%, for processing temperature exceeding 250°C. For spunbond PP, the recommended concentration of Irgatec® CR 76 IC is between 0.5 and 1%.
Product Type
Rheology / Viscosity Modifiers
Chemical Composition
Sterically hindered hydroxylamine ester in a polymer matrix
Physical Form
Transparent, Colorless
Product Status
Applications/ Recommended for
  • PP
  • Polybutene, Polyester, Styrene
  • Films, Tapes
  • Extrusion > Non wovens/ Melt blown
  • Safety, regulation & environment > Low volatiles

Irgatec® CR 76 IC Properties


Value & Unit
Test Condition
Test Method
Melting Point
100 - 180 °C
Specific Gravity
0.45 - 0.55
(At 20°C)

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