Deuteron® UV 2257

Identification & Functionality

Carrier

Propylene Carbonate

Chemical Name

4,4′-Dimethyldiphenyliodonium Hexafluorophosphate

CASE Ingredients Functions

Photoinitiator

Technologies

CASE Ingredients

Product Families

CASE Ingredients — Additives

Catalysts & Initiators

Features & Benefits

CASE Ingredients Features

Excellent Adhesion,

Good Shrinkage Resistance,

Improved Flexibility,

Low Odor

Product Highlights

• Deuteron® UV 2257 is a solution of Bis-(4-methyl- phenyl)-iodoniumhexafluoro-phosphate in reactive solvents. Deuteron® photo initiators are suitable for resins based on oxirane and/or oxetane groups (epoxy resins and vinylether. The addition of Deuteron® photo initiators enables the formulator to utilize UV light to induce the polymerisation of the above-mentioned resin systems.
• Deuteron® UV 2257 is soluble in the mentioned binder systems including the standard solvents and reactive diluents. The polymerization is initiated by exposure to UV light in a wavelength range between 220 nm and 250 nm. The maximum absorption is at 240 nm. Suitable light sources are high-pressure mercury lamps that have a high emission in the mentioned area of absorption.
• Deuteron® UV 2257 does not affect the film shrinkage negatively because it contains no volatile solvents.

Applications & Uses

Markets

Paints & Coatings,

Printing & Packaging

Applications

Paints & Coatings — Industrial Coatings

Metal Coatings

Printing & Packaging — Packaging

Food & Beverage Packaging

Paints & Coatings — Packaging Coatings

Overprint Varnishes

Printing & Packaging — Printing & Inks

Flexography,

Screen Printing

Compatible Substrates & Surfaces

Metal,

Plastics

Cure Method

Radiation Cure

Adhesive & Sealant Type

Laminating Adhesive,

Radiation Curable Adhesive

Coating Type

Varnishes

Ink & Toner Type

Flexography Ink,

Screen Printing Ink

Use Level

1.0 - 5.0 %

Application and Dosage Information

Deuteron® UV 2257 is suitable for a wide range of applications including:

• Overprint varnishes
• UV silk-screen inks
• UV flexographic inks
• UV lamination adhesives
• Metal coatings
• Plastics coatings

The use of Deuteron® UV 2257 especially improves the following properties:

• low shrinkage
• no benzene emission
• only slight odor
• flexibility
• adhesion properties on difficult substrates

Dosage

• Typical addition range: 1.0 % - 5.0 %
• The required dosage level highly depends on the system and the desired curing speed.
• Thus, it is highly recommended to determine the needed addition level by a practical ladder study. 

Processing

• Deuteron® UV cationic initiators can be incorporated into the binder with high-speed stirrer or other aggregates, e.g. dissolver.

Properties

Physical Form

Liquid

Appearance

Yellow, slightly viscous liquid

Typical Properties

	Value	Units	Test Method / Conditions
Density	approx. 1.4	g/cm³	—
Active Content	50.0	%	—

Packaging & Availability

Packaging Type

Cans

Regional Availability

• Canada
• Mexico
• USA

Packaging Information

• Plastic canister (25 kg net)

Storage & Handling

Shelf Life

12 months

Storage and Shelf Life Conditions

• 12 months at room temperature and dry conditions in its original tightly closed containers.
• Do not expose to direct sunlight. Optimum storage temperature is be- tween 10 °C and 35 °C. Avoid contact with water and high humidity.