Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making electrical device
Patent
1990-01-03
1990-10-09
Brammer, Jack P.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making electrical device
430281, 430286, 430287, 430306, 430325, 430916, 430919, 430920, 430921, 430311, G03C 500
Patent
active
049620126
ABSTRACT:
Titanocenes containing .pi.-cyclopentadienyl ligands, in which one or two carbocyclic or heterocyclic aromatic rings are attached to the metal atom, said aromatic rings being substituted by fluorine in at least one of the two ortho-positions relative to the metal-carbon bonds, are suitable photoinitiators for the photopolymerization of ethylenically unsaturated substrates. They are distinguished by high sensitivity, stability to air and heat, and are very effective in the range from UV light to visible light.
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Berger Joseph
Buhler Niklaus
Riediker Martin
Roth Martin
Brammer Jack P.
Ciba-Geigy Corporation
Hall Luther A. R.
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