Sinocure Chemical Group Co.,Ltd.

Sinocure® 6993-L

Sinocure® 6993-L is a cationic photoinitiator, which is a mixture of triarylsulphonium hexafluoroantimonate salts in propylene carbonate.

The triarylsulfonium salt photoinitiator has high photoinitiation activity because the sulfur atom can be partially conjugated with three aromatic rings, and the positive charge is dispersed. After light excitation, it can undergo cleavage to produce polymerization active species; it has good absorption at 365nm; It has the characteristics of fast curing speed, good surface drying, no yellowing, no migration, and no smell.

SINOCURE® 6993-L

Synonym:UV Cationic Photoinitiator 6993;UVI-6993;UVI-6976;

Mixed Sulfonium Hexafluoroantimonates & propylene carbonate

CAS NO:71449-78-0 & 89452-37-9 & 108-32-7

Molecular Formula:  C24H19S2.SbF6 & C36H28S3.Sb2F12 & C4H6O3

Molecular Structure:

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General Information:

The triarylsulfonium salt photoinitiator has high photoinitiation activity because the sulfur atom can be partially conjugated with three aromatic rings, and the positive charge is dispersed. After light excitation, it can undergo cleavage to produce polymerization active species; it has good absorption at 365nm; It has the characteristics of fast curing speed, good surface drying, no yellowing, no migration, and no smell.

Specification:

Appearance Yellow Liquid
Active Content 50% min
Gardner Color 4 max
Water 1.0% max

Usage:

  • Clear coatings and thicker films.
  • Used to cure cycloaliphatic epoxy resins such as Sinepoxy® CER-421 and Sinepoxy® CER-4299, vinyl ethers and other cationically cured materials.
  • Add amount recommended: 3-10%(w/w)

UV Absorption Spectrum :

 

Package:

25kgs or 200kgs/Drum

Storage:

Being kept in dry, clean warehouse with well ventilation.

Avoid exposing to light and heating.

Protecting the product from leakage, rain and insolation during transportation.

Details

Chemical Name

Mixed Sulfonium Hexafluoroantimonates & propylene carbonate

CAS No.

71449-78-0 & 89452-37-9 & 108-32-7

Molecular Formula

C24H19F6S2Sb
C36H28F6S3Sb+

Assay

50% min

Package

25kgs/drum;200kgs/drum

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