Ultraviolet curing printing inks having improved shelf life

Details Ultraviolet curing printing inks having improved shelf life Ultraviolet curing printing inks having improved shelf life

1978-05-09

1978-12-12

Turer, Richard B.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

96115P, 20415915, 20415916, 20415918, 20415923, 260836, 260837R, 260859R, C08G 1800, C08G 6300

Patent

active

041294866

ABSTRACT:
This invention provides for improved printing inks which cure upon exposure to ultraviolet radiation and furthermore demonstrate greatly extended shelf lives and stability as compared to prior art inks. The photosensitive component of the ink comprises a mixture of Michler's ketone and an o-halogen substituted hexa-aryl biimidizolyl compound.

REFERENCES:
patent: 3479185 (1969-11-01), Chambers
patent: 3549367 (1970-12-01), Chang et al.
patent: 4056453 (1977-11-01), Borzynski et al.

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