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US 5,180,424 AGranted
Michael addition aminopolyester resins as dilution extenders for zinc-containing metal resinate inks
AssigneeWestvaco Corporation
InventorG. Frederick Hutter
Life of this patent
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Abstract
The invention is a printing ink comprising a zinc-containing metal resinate complexed with aminopolyester resins and the process for preparing them. In particular, the invention relates to aminopolyester resins having properties which make them useful as resinate dilution extenders in formulating vehicles for gravure and intaglio printing inks.
Claims5
A printing ink comprising a zinc-containing metal resinate complexed with an aminopolyester that is soluble in either aliphatic or aromatic hydrocarbons;
- said aminopolyester being prepared as the Michael addition reaction product of:
- (a) a polyamine wherein the polyamine is a member selected from the group consisting of aminoethylpiperazine, 1,2-diaminocyclohexane, 3-dimethylaminopropylamine, N,N.sup.1 -dimethylethylenediamine, 2-methyl-1,5-pentanediamine, ethylenediamine, isophoronediamine, bis(4-aminocyclohexyl) methane, piperazine, and combinations thereof;
- and
- (b) an acrylic ester wherein the acrylic ester is a member selected from the group consisting of hexanediol diacrylate, trimethylolpropane triacrylate, tripropylene glycol diacrylate, and combinations thereof;
- where the ratio of the reactants is such that the equivalent weight of the primary and secondary amine groups per the equivalent weight of acrylic unsaturation is in the range of 0.8-1.4.
2 more elements
Dependencies are inferred from the claim text.