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US 2014/0147392 A1Published application
Novel marking compound
AssigneeTetra Laval Holdings & Finance S.A.
InventorsAdam O'Rourke, Martin Walker, Richard Cook, Anthony Jarvis
Life of this patent
Estimating the term…
Abstract
Water soluble marking compounds comprising a transition metal oxyanion and at least one ammonium cation, comprising a nitrogen atom at least one further group selected from the group consisting of OH, COOH, NH2, NHC1-5 alkyl, and N(C1-5 alkyl)2, wherein the two C1-5 alkyl may be the same type of alkyl or different alkyls, may be used to obtain clear imageable coatings.
Claims20
A compound comprising:
- (i) a transition metal oxyanion of formula AxOyz−,
- wherein “x” is an integer of 1 to 18, “y” is an integer of 4 to 42, “z” is an integer of 1 to 12, and “A” is a transition metal selected from the group consisting of Mo (molybdenum), Cr (chromium), W (tungsten), and Va (vanadium);
- (ii) at least one ammonium cation comprising a nitrogen atom and at least one further group selected from the group consisting of OH, COOH, NH2, NHC1-5 alkyl, and N(C1-5 alkyl)2, wherein the two C1-5 alkyl may be the same type of alkyl or different alkyls;
- (iii) one or several NH4+ cations;
- and
- (iv) one or several molecules of water.
3 more elements
The compound according to claim 4, wherein the ammonium cation is an alcohol-amine represented by the general formula (I),
- HNR1R2R3 general formula (I)
- wherein R1 is C2-5 alkyleneOH;
- and
- R2 and R3 is, independently of each other, selected from the group consisting of C2-5 alkyleneOH, hydrogen, and C1-5 alkyl.
1 more element
Dependencies are inferred from the claim text.