Quick Search
CAS Number: 474510-57-1
Molecular weight: 340.4
Photoinitiator 127 is a highly efficient UV curing additive which is used to initiate the photopolymerisation of reactive prepolymers - e.g. acrylates.
In combination with mono- or multifunctional monomers.
Photoinitiator 127 is completely aligned with market requirements in terms of productivity and emission.
This new photo-initiator is remarkable by Photoinitiator 127:
Excellent reactivity i.e. superiority over conventional aHydroxyketones like Photoinitiator 184 or DAROCUR 1173;
Low sensitivity to oxygen inhibition;
Low emission and odor after curing.
Photoinitiator 127 is especially suitable for all types of pigmented UV-inks (offset, screen, flexo and Ink Jet) and Clear coatings, in particular in thin coatings like overprint varnishes but also in a variety of coating applications.
Photoinitiator 127 is a highly efficient Type I Photoinitiator that may be used to initiate the photo polymerization of unsaturated pre-polymers like acrylates – in combination with mono- or multifunctional monomers.
Photoinitiator 127 is especially suitable for all types of pigmented UV inks (offset, screen, flexo and inkjet) and clear coatings, particularly in thin coatings (such as overprint varnishes) but also in a variety of coating applications.
Photoinitiator 127 (Former Irgacure 127) by IGM Resins is 2-hydroxy-1-{4-[4-(2-hydroxy-2-methyl-propionyl)-benzyl]-phenyl}-2-methylpropan-1-one.
Acts as a photoinitiator.
Possesses low sensitivity to oxygen inhibition, low volatility and low emission or odor after curing.
Compatible with unsaturated polyesters- (UPES) and acrylated systems.
Photoinitiator 127 is used curing unpigmented clear coatings or for surface curing in highly pigmented systems.
Suitable for clear & pigmented wood, plastics and metal coating, UV-stabilized clear coatings, and powder coatings.
Photoinitiator 127 is recommended for overprint varnish, offset-, flexo-, and screen inks.
Photoinitiator is a highly efficient Type I Photoinitiator that may be used to initiate the photo polymerization of unsaturated pre-polymers like acrylates – in combination with mono- or multifunctional monomers.
Photoinitiator is especially suitable for all types of pigmented UV inks (offset, screen, flexo and inkjet) and clear coatings, particularly in thin coatings (such as overprint varnishes) but also in a variety of coating applications.
Photoinitiator 127 is a highly efficient UV-curing additive used to initiate the photo polymerization of unsaturated prepolymers – e.g., acrylates – in combination with mono- or multifunctional monomers.
This off-white powder is completely aligned with market requirements in terms of productivity and emission.
Photoinitiator 127 may be used alone or in combination with suitable coinitiators (e.g., Photoinitiator 379, Lucirin TPO for UV-curable inks and in coating formulations for applications on paper, wood, metal and plastic materials).
Photoinitiator 127 red-shifted absorption spectrum makes Photoinitiator 127 especially suitable for UV-curable inks and in general semi-opaque systems.
In these applications Photoinitiator 127 delivers properties such as very high curing speed and low odor.
In UV-curable inks Photoinitiator 127 gives (in combination with other photoinitiators) outstanding surface-curing properties.
Features & Benefits of Photoinitiator 127:
Photoinitiator 127 is completely aligned with market requirements in terms of productivity and emission.
This photoinitiator is remarkable by Photoinitiator 127:
Excellent reactivity, i.e., superiority over conventional α-hydroxy-ketones
Low sensitivity to oxygen inhibition,
Low emission and odor after curing.
Application of Photoinitiator 127:
Photoinitiator 127 may be used after adequate testing alone or in combination with suitable co-initiators, such as Photoinitiator 379, Photoinitiator 819 for UV curable inks and in coating formulations for applications on paper, wood, metal and plastic materials.
Photoinitiator 127 red-shifted absorption spectrum makes Photoinitiator 127 especially suitable for UV curable inks and in general semi opaque systems.
In these applications Photoinitiator 127 delivers properties like very high cure speed and low odor.
In UV curable inks Photoinitiator 127 gives (in combination with other photoinitiators) outstanding surface cure properties.
Low sensitivity to oxygen inhibition associated with reduced emission are of particular interest for overprint varnishes and for top coats for wood parquets
In UV curable cationic inks and coatings the use of Photoinitiator 127 as a co-initiator together with e.g. Photoinitiator 250 has been demonstrated to result in an exceptionally high-performance formulation.
The amount of Photoinitiator 127 required for optimum performance should be determined in trials covering a concentration range.
Photoinitiator 127 may be used alone or in combination with suitable co-initiators (e.g., Photoinitiator 379, Photoinitiator TPO for UV-curable inks and in coating formulations for applications on paper, wood, metal and plastic materials).
Photoinitiator 127 red-shifted absorption spectrum makes Photoinitiator 127 especially suitable for UV-curable inks and in general semi-opaque systems.
In these applications Photoinitiator 127 delivers properties such as very high curing speed and low odor.
In UV-curable inks Photoinitiator 127 gives (in combination with other photoinitiators) outstanding surface-curing properties.
Low sensitivity to oxygen inhibition associated with reduced emission are of particular interest for overprint varnishes and for top coats for wood parquets.
In UV-curable cationic inks and coatings, the use of Photoinitiator 127 as a co-initiator together with, e.g.,
Photoinitiator 250 has been demonstrated to result in an exceptional high-performance formulation.
Formulated product properties will depend on the actual reactive monomers, oligomers and additives utilized.
Recommended Addition levels of Photoinitiator 127:
The amount of Omnirad 127 as supplied required for optimum performance should be determined in trialscovering a concentration range: clear coats 1.0 – 6.0 %
inks (free-radical systems) 2.0 – 5.0 %, combined with other photoinitiators (e.g., Photoinitiator 379 or Omnirad 819)
inks (cationic systems) 0.5 – 2.0 % combined with other photoinitiators (e.g., Photoinitiator 250)
Physical Properties of Photoinitiator 127:
Appearance: off-white powder
Melting point: 82-90°C (strongly dependent on measurement conditions)
Solubility at 22°C (g/100 g solution):
DAROCUR 1173: 40 %
Tripropyleneglycol diacrylate (TPGDA): 15 %
TMPTA: 15 %
EBECRYL 160: 15 %
OTA 480: >15 %
DPHA: 5 %
Additional Typical Properties of Photoinitiator 127:
Melting point (dependent on method): 82 – 90 °C (180 – 194 °F)
Solubility at 20 °C (68 °F):
hexanediol diacrylate (HDDA) - ~ 15 % by weight
trimethylolpropane triacrylate (TMPTA) - ~ 15 % by weight
tripropyleneglycol diacrylate (TPGDA) - ~ 15 % by weight
Recommended concentrations of Photoinitiator 127:
clears: 1 –6% - Photoinitiator 127
inks (free radical systems): 2 – 5 % Photoinitiator 127 combined with other PIs like e.g. Photoinitiator 379 or Photoinitiator 819.
Inks (cationic systems): 0,5 – 2 % Photoinitiator 127 combined with other PI such as Photoinitiator 250
Handling and storage of Photoinitiator 127:
Precautions for safe handling of Photoinitiator 127:
Handling in a well ventilated place.
Wear suitable protective clothing.
Avoid contact with skin and eyes.
Avoid formation of dust and aerosols.
Use non-sparking tools.
Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities:
Store the container tightly closed in a dry, cool and well-ventilated place.
Store apart from foodstuff containers or incompatible materials.
Storage of Photoinitiator 127:
Storage must be in a cool, shaded, well ventilated and dry area away from direct sources of heat and sunlight.
Avoid contact with alkaline additives and water.
Subject to appropriate storage under the usual storage and temperature conditions, our products are durable for at least 36 months.
Photoinitiator 127 should be handled in accordance with good industrial practice.
Further information is provided in the material safety data sheet which is available on request.
Safety of Photoinitiator 127:
Photoinitiator 127 should be handled in accordance with good industrial practice.
Detailed information is provided in the Safety Data Sheet.
Photoinitiator 127 is slightly sensitive to visible light and exposure to sunlight should be avoided.
Opened bags should be closed immediately after use to protect the product against light.
First-aid measures of Photoinitiator 127:
If inhaled:
Move the victim into fresh air.
If breathing is difficult, give oxygen.
If not breathing, give artificial respiration and consult a doctor immediately.
Do not use mouth to mouth resuscitation if the victim ingested or inhaled the chemical.
Following skin contact:
Take off contaminated clothing immediately.
Wash off with soap and plenty of water.
Consult a doctor.
Following eye contact:
Rinse with pure water for at least 15 minutes.
Consult a doctor.
Following ingestion:
Rinse mouth with water.
Do not induce vomiting.
Never give anything by mouth to an unconscious person.
Call a doctor or Poison Control Center immediately.
Most important symptoms/effects, acute and delayed:
no data available
Indication of immediate medical attention and special treatment needed, if necessary:
no data available
Fire-fighting measures of Photoinitiator 127:
Suitable extinguishing media:
Use dry chemical, carbon dioxide or alcohol-resistant foam.
Specific hazards arising from the chemical:
no data available
Special protective actions for fire-fighters:
Wear self-contained breathing apparatus for firefighting if necessary.
Accidental release measures of Photoinitiator 127:
Personal precautions, protective equipment and emergency procedures
Avoid dust formation.
Avoid breathing mist, gas or vapours.
Avoid contacting with skin and eye.
Use personal protective equipment.
Wear chemical impermeable gloves.
Ensure adequate ventilation.
Remove all sources of ignition.
Evacuate personnel to safe areas.
Keep people away from and upwind of spill/leak.
Environmental precautions of Photoinitiator 127:
Prevent further spillage or leakage if Photoinitiator 127 is safe to do so.
Do not let the chemical enter drains.
Discharge into the environment must be avoided.
Methods and materials for containment and cleaning up:
Collect and arrange disposal.
Keep the chemical in suitable and closed containers for disposal.
Remove all sources of ignition.
Use spark-proof tools and explosion-proof equipment.
Adhered or collected material should be promptly disposed of, in accordance with appropriate laws and regulations.
Disposal considerations of Photoinitiator 127:
Disposal methods of Photoinitiator 127:
The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing.
Do not contaminate water, foodstuffs, feed or seed by storage or disposal.
Do not discharge to sewer systems.
Contaminated packaging of Photoinitiator 127:
Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning.
Alternatively, the packaging can be punctured to make Photoinitiator 127 unusable for other purposes and then be disposed of in a sanitary landfill.
Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
Identification of Photoinitiator 127:
CAS Number: 474510-57-1
Name: Photoinitiator 127
SMILES: CC(C)(C(=O)C1=CC=C(C=C1)CC2=CC=C(C=C2)C(=O)C(C)(C)O)O
StdInChI: InChI=1S/C21H24O4/c1-20(2,24)18(22)16-9-5-14(6-10-16)13-15-7-11-17(12-8-15)19(23)21(3,4)25/h5-12,24-25H,13H2,1-4H3
StdInChIKey: PCKZAVNWRLEHIP-UHFFFAOYSA-N
Molecular Formula: C21H24O4
Molecular Weight: 340.413
Chemical Structure of Photoinitiator 127:
2-Hydroxy-1-{4-[4-(2-hydroxy-2-methyl-propionyl)-benzyl]-phenyl}-2-methyl-propan-1-one
Synonyms of Photoinitiator 127:
1,1′-(Methylendi-4,1-phenylen)bis(2-hydroxy-2-methyl-1-propanon)
1,1′-(Methylenedi-4,1-phenylene)bis(2-hydroxy-2-methyl-1-propanone)
1,1′-(Méthylènedi-4,1-phénylène)bis(2-hydroxy-2-méthyl-1-propanone)
1,1′-(Methylenedi-4,1-phenylene)bis(2-hydroxy-2-methylpropan-1-one)
1-Propanone, 1,1′-(methylenedi-4,1-phenylene)bis[2-hydroxy-2-methyl-
2-Hydroxy-1-(4-(4-(2-hydroxy-2-methylpropionyl)benzyl)phenyl)-2-methylpropan-1-one
2-Hydroxy-1-{4-[4-(2-hydroxy-2-methylpropionyl)benzyl]phenyl}-2-methylpropan-1-one
444-860-9
474510-57-1
IZJ9BVRDO7
QX1&1&VR
D1R
DVXQ1&1
1,1′-(Methylenebis(4,1-phenylene))bis(2-hydroxy-2-methylpropan-1-one)
1,1-(Methylene-di-4,1-phenylene)bis[2-hydroxy-2-methyl-1-propanone]
1,1′-(METHYLENE-DI-4,1-PHENYLENE)BIS[2-HYDROXY-2-METHYL-1-PROPANONE]
1,1′-[Methylenedi(4,1-phenylene)]bis(2-hydroxy-2-methylpropan-1-one)
1-Propanone, 1,1′-(methylene-di-4,1-phenylene)bis[2-hydroxy-2-methyl-
2-HYDROXY-1-(4-{[4-(2-HYDROXY-2-METHYLPROPANOYL)PHENYL]METHYL}PHENYL)-2-METHYLPROPAN-1-ONE
