Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1979-11-26
1982-08-31
Bleutge, John C.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
20415915, 20415918, 20415919, 20415923, 525 21, 526208, 430923, C08F 250, B32B 2716
Patent
active
043471110
ABSTRACT:
Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen, chlorine, phenyl, dialkylamino of 2-4 carbon atoms or alkyl or alkoxy each of up to 18 carbon atoms; R.sub.2 is hydrogen, chlorine, bromine or alkyl or alkoxy each of up to 4 carbon atoms; R.sub.3 and R.sub.4, which can be the same or different, each is hydrogen or alkyl of up to 6 carbon atoms; R.sub.5 is hydrogen or alkyl or alkanoyl each of up to 4 carbon atoms; and R.sub.6 is hydrogen or methyl, with the proviso that not all of R.sub.1 to R.sub.6 simultaneously are hydrogen, are effective photosensitizers, especially for photopolymerization of unsaturated compounds and for hardening of printing dyes.
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Gehlhaus Jurgen
Kieser Manfred
Bleutge John C.
Koeckert A. H.
Merck Patent Gesellschaft mit beschrankter Haftung
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