Solvent borne pigment concentrates based on organic green pigments, containing Laropal A 81

This formulation details solvent-borne pigment concentrates, without binders, focused on organic green pigments, and utilizing Laropal A 81. Here's a comprehensive breakdown:

Formulation Components:

• Pigment Paste: The formulation includes two pigment pastes labeled A and B, each containing different organic green pigments:
  • Pigment Paste A: Heliogen Green L8730 (P.G. 7)
  • Pigment Paste B: Sunfast Green 36 (P.G. 36)
• Additive: Borchi® Gen 0755 is incorporated as an additive.
• Solvent Mixture: Methoxy propyl acetate and butyl acetate are combined to form the solvent mixture.
• Laropal A 81: Included in the formulation to enhance its properties.

Dispersion Process:

• The dispersion process involves mixing the components for 60 minutes on a Skandex Shaker, likely with 1.5 times Zr-silicate grinding beads (2mm), to achieve the desired particle size distribution.

Data:

• Particle Size: The particle size achieved during dispersion is reported to be less than 15 µm.
• Viscosity: Viscosity measurements at a shear rate of 100 s^-1 and 23 °C indicate the flow behavior of the concentrates. The viscosity is reported to be less than 1000 mPa.s.
• Storage Stability: Stability testing under elevated temperature conditions suggests that there is no significant alteration in particle size and color strength over time.

Supplier Information:

• Details about the suppliers of the raw materials used in the formulation, such as BASF, Sun Chemical, and Borchers, are provided.