C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
31/154
C09D 11/10 (2006.01) C09D 11/00 (2006.01)
Patent
CA 1186143
ABSTRACT OF INVENTION A jet ink composition curable in ultra violet and a method for producing visible indicia on a substrate, the jet ink composition comprising between 20 and 70% by weight of an epoxy resin selected from the group consisting of (i) diglycidyl ethers of bisphenol A, said resin being predominately the momomer thereof, (ii) polyepoxidized phenol of cresol novolacs, (iii) diepoxide ethers or esters having two epoxy cycloalkyl groups (iv) polyglycidyl ethers of polyhydric alcohols, and (v) combinations thereof, said epoxy resins and having an epoxy equivalent weight of less than 300; between 1 and 12% by weight of a photoinitiator capable of rapidly polymerixing the epoxy resins, said photoinitiator being of the type that provides a Lewis acid effective to initiate said polymerization reaction upon exposure to a source of radiation such as ultra-violet light less than 2% by weight of a colorant that does not adversely affect cure of said resins, and a solvent blend containing solvents selected from the group consisting of aliplhatic alcohols of one to five carbons, alkyl ketones of two to five carbons, aromatic hydrocarbons of benzene, toluene and xylene, propylene carbonate, ethylene glycol ethers of 3 or 4 carbons, alkyl acetates of 2 to 4 carbons, and combinations of same.
407359
American Can Company
Marks & Clerk
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