B - Operations – Transporting – 41 – M
Patent
B - Operations, Transporting
41
M
42/10, 42/15, 20
B41M 5/165 (2006.01)
Patent
CA 1109258
Abstract of the Disclosure This invention relates to a process for producing a radiation curable coating composition containing microcapsules having a hydrophobic liquid core comprising the following steps: An emulsion containing droplets of a hydrophobic emulsion component dispersed in a hydrophilic emulsion component is prepared. The hydrophobic emulsion component comprises a hydrophobic li- quid. The hydrophobic emulsion component additionally contains a first wall- forming material capable of reacting by condensation polymerization with a second wall-forming material to form a polymeric capsule wall. The first wall- forming material is soluble in the hydrophobic emulsion component. The poly- meric capsule wall is substantially insoluble in the hydrophilic and the hydro- phobic emulsion components. The hydrophilic emulsion component comprises an emulsifier dispersed in a radiation curable hydrophilic liquid. The radiation curable hydrophilic liquid comprises water and at least one radiation curable polar compound. The emulsion additionally contains the second wall-forming material. The emulsion is subjected, with stirring, to temperature conditions for a period of time sufficient to react the first and second wall-forming materials to form a dispersion of microcapsules in the hydrophilic emulsion component. The microcapsules have capsule walls substantially impermeable to the hydrophilic and the hydrophobic emulsion components. The radiation curable dispersion so produced can be coated on a paper substrate and set by subjecting the dispersion on the paper substrate to radiation for a period of time suffi- cient to polymerize the radiation curable hydrophilic liquid to a tack-free resinous film on the paper substrate. The radiation is a combination of ultraviolet and infra-red radiation. The invention further relates to a radiation curable coating composition containing microcapsules. The microcapsules have a hydrophobic liquid core and are dispersed in a radiation curable hydrophilic liquid. The radiation curable hydrophilic liquid comprises a polar radiation curable com- pound and water. The radiation curable coating composition additionally contains a photoinitiator.
305776
Austin Robert A.
Shackle Dale R.
Ridout & Maybee Llp
The Mead Corporation
LandOfFree
Process for the production of novel radiation curable... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the production of novel radiation curable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of novel radiation curable... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-211878