Photopolymerizable composition, photoinitiator mixture and curin

Details Photopolymerizable composition, photoinitiator mixture and curin Photopolymerizable composition, photoinitiator mixture and curin

1982-09-30

1984-09-04

Lieberman, Allan

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415923, 20415924, C08F 246, C08F 250, C08J 328

Patent

active

044695756

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.

REFERENCES:
patent: 4024297 (1977-05-01), Gruber
patent: 4054721 (1977-10-01), Cordes
patent: 4372836 (1983-02-01), Schmitt et al.

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