CHLUMINIT® TPO-L / Photoinitiator TPO-L / irgacure TPO-L CAS 84434-11-7

TPO-L is a liquid photoinitiator, used to initiate UV polymerization of unsaturated prepolymerization systems. Suitable for formulation systems with low yellowing and low odor.

Because TPO-L has a relatively wide absorption range, it can also be used for the curing of white deep-layer systems.

Photoinitiator TPO-L Application scenarios

1. 3D Printing
Dental Resins, Medical Models, General-Purpose Models

2. Coatings & Inks
Wood Coatings, Plastic/Metal Coatings, Flexo/Inkjet/Screen/Offset Inks, Clear Varnishes

3. Adhesives & Sealants
Pressure-Sensitive Adhesives, Composite Materials, General-Purpose Adhesives

4. Nail Care Products (e.g., Gel Polish)

🔬 Key Application Insights

3D Printing (especially in dentistry):
This represents a critical application for TPO-L in recent years. Studies indicate that resins using TPO-L demonstrate superior biocompatibility (lower cytotoxicity) and color stability compared to some traditional photoinitiators. This is crucial for dental restorations requiring long-term placement in the oral cavity, such as crowns and models.

Coatings and Inks:
TPO-L enables efficient deep-cure and surface-cure properties. Its low yellowing characteristics help preserve the original color of coatings or printed materials, particularly in pigmented systems (especially white and colored inks).

Adhesives and Composites:
TPO-L’s liquid state facilitates easy mixing in formulations. Studies also confirm its ability to achieve efficient curing in adhesive formulations like pressure-sensitive adhesives.

Description

Photoinitiator TPO-L / irgacure TPO-L CAS 84434-11-7

Chemical Name: Ethyl (2,4,6-trimethylbenzoyl) phenylphosphinate;2,4,6-Trimethylbenzoylphenylphosphinic acid ethyl ester

CAS No.: 84434-11-7

MF: C18H21O3P

Standard

 

Items Specifications
Appearance Light yellow liquid
Assay (HPLC) ≥98.0%
Acid value(Mg KOH/g) ≤1.0

Usage:

Photoinitiators, mainly used for screen printing inks, lithographic printing inks, flexo printing inks, wood coatings

Package: 20kg/carton.

Storage:

Being kept in dry, clean warehouse with well ventilation.

Avoid exposing to light and heating.

Protecting the product from leakage, rain and insolation during transportation.

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Additional information

Chemical Name

Ethyl (2,4,6-trimethylbenzoyl) phenylphosphinate

CAS No.

84434-11-7

Molecular Formula

C18H21O3P

Assay

95% or 98%

Package

20kgs or 25kgs/drum

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