PRODUCT

PRODUCT

What is Photo-sensitizer ?

Photosensitizer is the additive that can absorb the long wave UV and transfer the light energy or electron coming from it to photo-Initiators. Then it helps not only accelerate curing speed and curing in depth but also improve properties of cured products.

Characteristics

ANTHRACURE UVS series are designed to …

  • Speed cure in both UV cationic and radical polymerization.
  • be sensitized in the unparalleled absorption range of long UV wavelength around 400nm that is capable of utilizing several light sources such as conventional Mercury lamp, Electrodeless lamp, LEDs and Laser.
  • Improve curing depth.
  • Give many options of initiators that can not necessarily initiate polymerization reaction.
  • attain none or less yellowing after curing when used UVS-581 or UVS-2171 in conjunction with UVS-1331 or 1101.
  • reduce the dose of initiators.
  • behave as both photo sensitizer and polymerization inhibitor (show the sharp on/off cut-off performance)

UV-Vis spectrum chart

UV-Vis spectrum chart

Recommended for...

Someone who want to cure thick layer

The requirement for being able to cure thick film is utilizing long wave UV that can reach depth.
ANTHRACURETM absorbs such light effectively to transfer its energy to initiators. Accordingly, it leads to homogenous polymerization even in depth direction.

Someone who want to use LEDs

LED light sources, while consuming less energy and emitting less heat, emit a singular wavelength ranging from 365-405nm (long wave UV).
ANTHRACURETM efficiently absorbs the UV light coming from LEDs. When added to the conventional formulation, it helps achieve an equivalent or higher curing rate and improves insufficient curing.

Guiding Criteria

Light source Recommendation
Radical system
(Acrylate etc.)
Mercury lamp UVS-581
UVS-2171
UVS-1331 or UVS-1101
UVS-1331 (or UVS-1101) + UVS-581
UV-LED 365
i line (365nm)
UVS-581
UVS-2171
UV-LED 375 nm
UV-LED 385 nm
UVS-581
UVS-2171
UV-LED 395nm UVS-581
UVS-2171
UVS-1331 or UVS-1101
UVS-1331 (or UVS-1101) + UVS-2171
UV-LED 405nm
h line (405nm)
UVS-581
UVS-2171
UVS-1331 (or UVS-1101) + UVS-2171
Light source Recommendation
Cationic system
(Cycloaliphatic epoxies etc.)
Mercury lamp UVS-581
UVS-2171
UVS-1331 or UVS-1101
UVS-1331 (or UVS-1101) + UVS-581
UV-LED 365
i line (365nm)
UVS-581
UVS-2171
UV-LED 375 nm
UV-LED 385 nm
UVS-581
UVS-2171
UV-LED 395nm UVS-581
UVS-2171
UVS-1331 or UVS-1101
UVS-1331 (or UVS-1101) + UVS-2171
UV-LED 405nm
h line (405nm)
UVS-581
UVS-2171
UVS-1331 (or UVS-1101) + UVS-2171
Light source Recommendation
Hybrid system
(Acrylate with epoxies)
LED 365nm UVS-581
UVS-2171
UV-LED 395nm UVS-1331 or UVS-1101
UVS-581
UV-LED 405nm
h line (405nm)
UVS-1331 or UVS-1101
UVS-1331 (or UVS-1101) + UVS-2171

Pigmented system

The pigments that absorb the UV light for activating initiators will retard curing significantly.
ANTHRACURETM contributes to overcome this kind of issues by utilizing long wave UV.

Sensitizing effect of ANTHRACURETM in thick film polymerization

A short wavelength of UV light (orange line) does not reach to the deep layer and it activates only the initiators in surface layer.
To cure depth ANTHRACURETM can activate the initiators even in deep layer by long wave UV (blue line) which can go through thick layers. Accordingly, it leads to the homogeneous cured layer.

Registration status

Product name​ ANTHRACURE™ ​
UVS-1331​
ANTHRACURE™ ​
UVS-1101​
ANTHRACURE™ ​
UVS-581​
ANTHRACURE™ ​
UVS-2171​
Japan ​
(CSCL)​
Registered​ *1 *1 Registered​
China​
(IECSC)​
Registered and Listed​ Registered and Listed​ Record filling notification *2
(< 1 MT/y)​
Record filling notification *2
(< 1 MT/y)​
Korea​
(KECL)​
Existing chemical(Late)
Pre-registered *3​
( < 10 MT/y)​
New chemical substance *4
( < 100 kg/y)​
New chemical substance *4
( < 100 kg/y)​
Existing chemical(Late)
Pre-registered *3
( < 10 MT/y)​
Taiwan ​
(TSCI)​
Registered *5 Registered *5​ Registered *5 Registered *5
Europe ​
(EU REACH)​
Registered​ ―​ *6
( < 1 MT/y)​
―​ *6
( < 1 MT/y)​
*6
( < 1 MT/y)​
Great Britain​
(UK REACH)​
Grandfathered​ ―​ ―​ ―​
USA ​
(TSCA)​
―​ Listed​
(Active)​
―​ ―​
Canada ​
(DSL)​
―​ ―​
(NDSL)​
―​ ―​
  • *1 : Less than 1 MT/y production (under Chemical Substance Control Law, CSCL)
  • *2 : Notification of new substance is required prior to importation for less than 1 MT/y of the product through your local importer if you can’t export through our authorized local distributor in China.
  • *3 : It’s already pre-registered limited to our authorized distributors in South Korea. Pre-Registration shall be required before the importation if not use them. And when importing 1 – 10 MT/y in south Korea by 2027, it shall be registered during the period from 2028 to 2030.
  • *4 : It’s already notified limited to our authorized distributors in South Korea. If you can’t utilize them your local importer shall notify the chemical. When to import >100 KG/y, pre-registration shall be required.
  • *5 : When to exceed 100 kg/y, Phase 1 registration by importers shall be required.
  • *6 : Not registered but the volume of less than 1 MT/y fully will exempt from registration.