Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1982-09-30
1985-07-16
Lieberman, Allan M.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
1562755, B23B 2716, C08J 710
Patent
active
045294917
ABSTRACT:
The present invention relates to a photopolymerizable composition comprising a polymerizable, polyethylenically unsaturated compound, benzil and/or fluorenone, a specific biphenyl ketone such as para-phenyl benzophenone, and a reducing agent such as a tertiary amine. The present composition permits rapid and complete curing. Moreover, in the photopolymerization of compounds sensitive to air inhibition non-tacky surfaces are obtained. The effect observed is based on a synergism between the present photoinitiators. The advantages of the invention are most manifest in curing relatively thick layers of materials.
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Jaspers Hans
VAN DER Hauw Tjerk
Akzona Incorporated
Lieberman Allan M.
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