Photopolymerizable binders containing diaminobenzophenones

Details Photopolymerizable binders containing diaminobenzophenones Photopolymerizable binders containing diaminobenzophenones

1978-07-03

1979-04-03

Turer, Richard B.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

96115P, 20415918, 20415919, 260837R, 260859R, 427 54, C08F 246, C08F 818

Patent

active

041476042

ABSTRACT:
Photopolymerizable binders for printing inks, coatings and printing plates, based on olefinically unsaturated compounds, with or without a polymeric binder component, and containing a diaminobenzophenone compound as the photosensitizer, are improved in respect of their toxicity and shelf life if the diaminobenzophenone compound has the formula R.sup.1 R.sup.2 N--C.sub.6 H.sub.4 --CO--C.sub.6 H.sub.4 --NR.sup.3 R.sup.4, where R.sup.1 and R.sup.3 are H(OR.sup.5).sub.x radicals, R.sup.5 being alkylene of 2 or 3 carbon atoms and x being 1, 2 or 3, and R.sup.2 and R.sup.4 are each alkyl of 1 to 4 carbon atoms or are radicals of the type of R.sup.1 and R.sup.3.

REFERENCES:
patent: 3933682 (1976-01-01), Bean
patent: 3945833 (1976-03-01), Sumita et al.
patent: 3966573 (1976-06-01), Bean
patent: 4048034 (1977-09-01), Martan
patent: 4056453 (1977-11-01), Barzynski et al.
patent: 4067791 (1978-01-01), Konno et al.

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