Pentaerythritol tris(3-aziridinyl) propanoate

Brands: BENE, Origin: , SKU:

CAS No. 57116-45-7
Appearance Colorless or pale yellow transparent liquid
Assay ≥ 99%
pH (25 °C) 9–11
Viscosity (25 °C) 1500–4000 mPa·s
Molecular Formula C₂₀H₃₃O₇N₃
Molecular Weight 427.5
Free Amine ≤ 100 ppm
Solubility Completely soluble in common solvents such as water, alcohols, ketones, and esters

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Pentaerythritol tris(3-aziridinyl) propanoate

Pentaerythritol tris(3-aziridinyl) propanoate is a high-performance, environmentally friendly aziridine-based crosslinking agent. It is widely used in water-based and partially solvent-based inks, coatings, and adhesive systems, significantly enhancing the durability and adhesion of crosslinked film-forming products without releasing harmful substances such as formaldehyde.

Physical Features

Performance Value or State
CAS No. 57116-45-7
Appearance Colorless or pale yellow transparent liquid
Assay ≥ 99%
pH (25 °C) 9–11
Viscosity (25 °C) 1500–4000 mPa·s
Molecular Formula C₂₀H₃₃O₇N₃
Molecular Weight 427.5
Free Amine ≤ 100 ppm
Solubility Completely soluble in common solvents such as water, alcohols, ketones, and esters

Proposed Uses

  • Widely applied in water-based and partially solvent-based inks, coatings, pressure-sensitive adhesives, and adhesives

  • Significantly improves:

    • Washing resistance

    • Scrubbing resistance

    • Chemical resistance

    • Adhesion on various substrates

  • An environmentally friendly crosslinking agent that does not release formaldehyde after crosslinking

  • The cured products are non-toxic and odorless

Method of Application

  • Typical dosage: 1–3% of the solid content of acrylic emulsions or polyurethane dispersions

  • Recommended emulsion pH: 9.0–9.5

  • Not suitable for acidic systems

  • Primarily reacts with carboxyl groups in the emulsion

  • Can be used at room temperature; improved curing performance at 60–80 °C

  • Users should conduct application tests according to their specific process requirements

Important Notes:

  • This is a two-component crosslinking agent

  • Recommended pot life: 6–8 hours after addition to the system

  • Actual service life should be evaluated based on use temperature and compatible resin system

  • The product has a slight ammonia odor

  • Handle carefully to avoid contact with skin and eyes

  • Use in a well-ventilated environment

  • During spraying, pay special attention to oral and nasal inhalation and wear protective masks, gloves, and protective clothing

Packaging & Storage

  • Packaging: 25 kg plastic drums or user-specified packaging

  • Storage conditions:

    • Store in a dry, cool, dark, tightly closed, and high-temperature-resistant environment

    • Avoid contact with acids and oxidizing agents

  • Shelf life: 12 months from the date of production under original packaging conditions

  • Safety classification: Non-flammable and non-explosive, but slightly corrosive; classified as general dangerous goods

Friendly Reminder

This information is provided true and accurate to the best of our knowledge. However, no responsibility is assumed for any suggestions or statements herein, as conditions and methods of use are beyond our control.
The user is solely responsible for evaluating the product’s suitability, application, and performance for their specific requirements.