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R-gen® 919 is a novel photoinitiator introduced in 2017 and is the only liquid photoinitiator commercially available for black UV systems. It completely solves the extralow solubility issue of solid, p-morpholinoacetophenone based photoinitiator (Chivacure® 169) which limits the dosage and selection of
monomers and oligomers during formulation. The liquid nature of this product speeds up the preparation of end products such as UV inks which is crucial for heat sensitive systems.
The photospeed of R-gen® 919 is as high as that of p-morpholinoacetophenone under both arc and LED lamps, and its odorless after cure is another advantage. Furthermore, the liquid nature of R-gen® 919 allows it to function as a handy solvent for preparing photoinitiator cocktails.
*This product is protected by Taiwan patent I564276B and its associated patent family.
Recommended applications
● Black UV inks with extra photospeed not possible with Chivacure®169.
● Where UV systems are heat- and grinding- sensitive.
● UV systems where premature precipitation cannot be tolerated as with UV ink for inkjets.
● UV systems that must be odor-free.
● UV systems where CMR 1(b) material cannot be used.
Packaging
20 kg net / Drum
Regulatory status
TSCA: Pending
REACH: Under preparation
UV spectrum
Photospeed under UV Lamp (D-bulb)
Chemical Information Structure
Chemical name
p-morpholinoacetophenone type photoinitiator
CAS No
Proprietary
Physical Data
Appearance：Brownish viscous liquid
Odor：Slight ester smell
Boiling point：257.8℃
Viscosity：210,000 cps at 20℃
Density Solubility： 1.088 g/cm at 20℃
Most acrylic resins：completely miscible
Water：3.37 x10-3 g/L at 20℃
Specification
Appearance: Brownish viscous liquid
Clarity: Clear
Active content: 90% min.
Volatiles: 0.5% max
Photospeed under LED
Substrate: Coated paper
Distance to light source: 1.0 cm
Dry film thickness: 25.2 μm
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投稿報料及媒體合作
E-mail：luning@ibuychem.com
