Darocur 1173

2 Hydroxy 2 methyl 1 phenyl propan 1 one 7473-98-5

Ciba Specialty Chemicals

光触发剂 Photoinitiator 丙烯酸/丙烯酸盐树脂 Acrylic/Acrylate Resins 涂层 >> UV / 辐射线固化 Coatings >> UV / Radiation Curing *HQHUDO DAROCUR 1173 is a versatile highly efficient liquid photoinitiator which is used to initiate the photopolymerisation of chemically unsaturated prepolymers - e.g. acrylates - in combination with mono- or multifunctional monomers. 2-Hydroxy-2-methyl-1-phenyl-propan-1-one Molecular weight: 164.2 CAS No. 7473-98-5 Miscibility: in most common organic solvents as well as most acrylate based monomers exceeds 50g/100g; practically insoluble in water. DAROCUR 1173 may be used after adequate testing for applications such as UV curable clear coatings based on acrylates for paper, metal and plastic materials. As a liquid UV curing agent with excellent compatibility, DAROCUR 1173 is especially easy to incorporate. It is therefore highly suitable for blends with other photoinitiators. DAROCUR 1173 is especially recommended when UV coatings are required to exhibit only minimal yellowing even after prolonged exposure to sunlight. Yellowing of urethane acrylates may be further reduced by addition of Ciba Specialty Chemicals’ hindered amine light stabilizer TINUVIN ® 292. The amount of DAROCUR 1173 required for optimum performance should be determined in trials covering a concentration range. Photoinitiator that may be used for applications such as UV curable clear coatings based on acrylates for paper, metal and plastic materials. Easy to incorporate. Suitable for blends with other photoinitiators. Recommended when UV coatings are required to exhibit only minimal yellowing even after prolonged exposure to sunlight. Recommended usage level: 1.0-3.0% for a 20-200 µm film thickness; 2.0-4.0% for a 5-20 µm film thickness.