Photopolymerization using an alpha-aminoacetophenone
AssigneeUop LLC
InventorMichael Martan
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Abstract
Polymerizable monomers are photopolymerized by subjecting the monomer to the emission from an ultra-violet light source in the presence of a photosensitizing compound and an activating compound .It has now been discovered that certain types of substituted acetophenones will act as both a sensitizer and an activator thus eliminating the presence of more than one compound in the monomer.
Claims10
In a process for the photopolymerization of a polymerizable monomer wherein said monomer is subjected to the emission from an ultra-violet light source having a wave length less than about 4000 Angstroms in the presence of a photosensitizing compound and an activating compound at polymerization conditions, the improvement which comprises utilizing an alpha-aminoacetophenone as combined photosensitizing compound and an activating compound.
Dependencies are inferred from the claim text.