Photoinitiators for photopolymerizable coating compositions

Details Photoinitiators for photopolymerizable coating compositions Photoinitiators for photopolymerizable coating compositions

1977-05-13

1978-12-26

Turer, Richard B.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

96115P, 20415915, 20415916, 20415918, 20415919, 2041592, 20415923, 20415924, 260837R, 427 54, 428417, 428441, 428442, 528 49, 528 75, C08F 246, C08F 400

Patent

active

041315294

ABSTRACT:
Photopolymerizable coating compositions contain, as the binder, olefinically unsaturated compounds having a boiling point above 50.degree. C, together with from 0.5 to 15% by weight of photoinitiators, based on the binder. The photoinitiators are a mixture of an aromatic carbonyl compound A, which is a derivative of benzoin or benzil, which has at least one carbon-oxygen single bond in the .alpha.-position relative to the carbonyl group, an aromatic carbonyl compound B which is derived from benzophenone, fluorenone, anthraquinone, xanthene, thioxanthone or acridone, and an amine C of the general formula ##STR1## where R', R" and R"' are H, alkyl of 1 to 10 carbon atoms, cycloalkyl of 3 to 10 carbon atoms, aryl, hydroxyalkyl of 1 to 8 carbon atoms or alkoxyalkyl of 2 to 4 carbon atoms, but at most 2 substituents are H and at most 2 substituents are aromatic.
These coating compositions may be used for finishing various substrates, as fillers or as printing inks.

REFERENCES:
patent: 3759807 (1973-09-01), Osborn et al.
patent: 3825479 (1974-07-01), Carlick et al.
patent: 3945833 (1976-03-01), Sumita et al.

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