P.A.T Photoinitiator TPO is a phosphine oxide photoinitiator designed for UV-curable inks, coatings, and adhesives. It appears as a light yellow powder. This compound plays a crucial role in initiating the UV curing process, facilitating the rapid curing of the mentioned materials when exposed to ultraviolet light. The light yellow powder form makes it convenient for incorporation into various formulations where UV curing is desired.

Functions: Photoinitiator

CAS Number: 75980-60-8

End Uses: Radiation Curable Adhesive, Radiation Curable Coating, Radiation Curable Ink

Technical Data Sheet

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Enhanced TDS

Identification & Functionality

CASE Ingredients Functions

Features & Benefits

CASE Ingredients Features

Applications & Uses

Cure Method
Adhesive & Sealant Type
Ink & Toner Type


Physical Form
Light yellow powder
Physical Properties
ValueUnitsTest Method / Conditions
Volatile Content0.5%-
Assay Contentmin. 99%-
Melting Point91 - 94°C-
Absorption Peak273 - 370nm-

Packaging & Availability

Regional Availability
  • Global
Packaging Information

20Kg Boxes