Photoinitiator TPO

Benzyl acetate
Benzyl acetate
Pure Polyetheramine CAS 9046-10-0


TPO paramete

CAS No.: 75980-60-8
MF: C22H21O2P
Place of Origin: Shandong, China
Purity: 99%, 99%min
Model Number: WX01-CAS75980-60-8
Appearance: Pale yellow powder
Usage: Organic Intermediate
Lead time: 1-2 days
MW: 348.37
Other Names: photoinitiator TPO
EINECS No.: 278-355-8
Type: Syntheses Material Intermediates
Brand Name: Look Chemical
Application: Polymerization Initiators, UV curable coating and inks
Product name: photoinitiator TPO
CAS: 75980-60-8
Color: colorless to pale yellow
Transport way: By sea or by air

Introduction of TPO Photoinitiator

Photoinitiator TPO, additionally understood as Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, is an effective free radical type photoinitiator with absorption in the lengthy wavelength variety.

Along with its high starting efficiency, the initiator integrates surface drying out and deep treating, and is used to initiate UV polymerization of unsaturated prepolymerized systems.

Photoinitiator TPO has the following 3 attributes: fast curing, yellowing resistance, low smell.

It is mainly utilized in white systems, as well as can be utilized in UV-curable coverings, publishing inks, UV-curable adhesives, fiber optics coverings, photoresists, photopolymerization printing plates, stereolithographic materials, composite materials, dental fillings, etc.


Item Index Actual quality
Appearance Yellowish green crystal Yellowish green crystal
Assay ≧99.0% 99.24%
Melting point 91.0~95.0℃ 92.7~93.9℃
Loss on drying ≦0.2% 0.04%
Ash ≦0.1% 0.09%
Acidity value ≦0.5mgKOH/g 0.2022
Conclusion Conform


This Tpo photoinitiator is mainly utilized for screen printing ink, lithographic printing ink, flexo printing ink, wood layer.

TPO can be completely healed on white or high titanium dioxide pigmented surface areas. Extensively made use of in numerous layers, because of its outstanding absorption properties, it is particularly appropriate for display printing inks, lithographic printing, flexo printing inks, wood layers.

Can likewise be utilized in clear coats, specifically for products with low odor needs. Utilized alone in unsaturated polyester containing styrene system, it has high initiation effectiveness.

Photoinitiator TPO is used in mix with MOB240 or CBP393 to boost healing effectiveness. It is the most effective extraction solvent for oil aromatics plant, and also it is additionally utilized as formylation reagent in fine chemical market.

Can be used for UV curing coatings, printing inks, UV curing adhesives, optical fiber coatings, etc.

Chemical Properties of Photoinitiator TPO

Its reliable absorption optimal is 350-400nm, and it has been taken in up until about 420nm. Its absorption top is longer than that of traditional initiators, and two totally free radicals, benzoyl and phosphoryl, can be created after irradiation, which can start polymerization.

It also has photobleaching buildings for deep healing of thick films and non-yellowing homes. Has low volatility as well as appropriates for water based.

The TPO photoinitiator can make the layer non-yellowing, with reduced post-polymerization result as well as no residue.


Package :1 kg bag / 5 kg bag / 25 kg drum / 20 kg carton


• Q1: Can I get some samples?
A:   Yes, we can supply the free sample, but the shipping cost be paid by customers.

• Q2:  How to start orders or make payments?
A :  PI will be sent first after confirmation of order,enclosed our bank information.Payment  by  T/T, Western Union LC,Alibaba trade assurance ,Moneygram or Paypal.

• Q3: What’s your MOQ?
A :  Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

• Q4: How about delivery leadtime?
A :  Delivery lead time: About 3-5 days after payment confirmed.(Chinese holiday not included)

• Q5: Is there a discount?
A :  Different quantity has different discount.

• Q6: How to contact us ?
A :  You can chat with us by Trademanager,MSN&Skype Online. You can choose your interested products and send inquiry to us. You can dial our telephone directly, you will get our reply. Send Email to us.

• Q7: How to confirm the Product Quality before placing orders?
A :  You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.


Logistics transportation methods can be divided into various ways according to the different transportation means.

TPO picture

Packaging and shipping