Low gloss finishes by gradient intensity cure

Details Low gloss finishes by gradient intensity cure Low gloss finishes by gradient intensity cure

C - Chemistry, Metallurgy

08

J

400/5152, 400/70

C08J 3/24 (2006.01) B05D 5/06 (2006.01) B41M 7/00 (2006.01)

Patent

CA 1120631

ABSTRACT OF THE DISCLOSURE The gloss of energy-curable coating and ink compo- sitions is reduced by exposing such compositions to actinic radiation in an oxygen-rich atmosphere at differential inten- ity levels. The intensities are selected to effect at a first intensity range substantially complete cure of the composition except for the surface, with final cure of the surface being effected subsequently at a different and higher intensity range. Gradient Intensity Cure can be employed with substan- tially any composition which is curable by free radical-induced addition polymerization using a photosensitizer-photoinitiator- photocatalyst system.

329801

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