US 7,018,454 B2Granted

Ink jet ink and recording material

AssigneeCiba Specialty Chemicals Corporation

InventorsMervin G. Wood, Joseph Suhadolnik, Paul Kondracki

Life of this patent

Estimating the term…

Loading patent…

Abstract

The present invention relates to an ink jet ink, an ink jet recording material or an ink jet system comprising at least one sterically hindered N-hydroxylamine strong acid salt, for example 1-hydroxy-2,2,6,6-tetramethyl-4-hydroxypiperidinium chloride or bis(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl)sebacate dihydrochloride; or comprising at least one dialkyl N-hydroxylamine salt, for example chloride, bisulfate, sulfate, phosphate, nitrate, ascorbate, formate, acetate, benzoate, oxalate, citrate, a carboxylate of ethylenediaminetetraacetic acid or of diethylenetriaminepentaacetic acid or polyacrylate salts of N,N-diethylhydroxylamine, N,N-bis(2-hydroxypropyl)hydroxylamine, N,N-bis(3-hydroxypropyl)hydroxylamine, N,N-dibenzylhydroxylamine or the N,N-di(alkyl)hydroxylamine produced by the direct oxidation of N,N-di(hydrogenated tallow)amine.

Claims23

Dependent claims

An ink jet ink comprising at least one dialkyl N-hydroxylamine salt of the formula (R51R52N—OH).(HY),

or
an ink jet system comprising a recording material and at least one colored ink to be applied to the recording material by means of an ink jet nozzle, wherein the recording material or the at least one colored ink comprises at least one dialkyl N-hydroxylamine salt of the formula (R51R52N—OH).(HY),
where
R51 is alkyl of 1 to 36 carbon atoms, cycloalkyl of 5 to 12 carbon atoms or aralkyl of 7 to 9 carbon atoms;
or R51 is said alkyl, cycloalkyl or aralkyl substituted by one to six alkyl of 1 to 12 carbon atoms, halogen, cyano, E41O—, E41CO—, E41OCO—, E41COO—, E41S—, E41SO—, E41SO2—, NH2, NHE41, —NE41E42, —PO(OE41)(OE42) or —OPO(OE41)(OE42) groups;
R52 is hydrogen or independently has the same meaning as R51, where at least one of R51 and R52 contains a hydrogen alpha to the —NOH moiety;
E41 and E42 independently are hydrogen, alkyl of 1 to 4 carbon atoms or alkyl of 1 to 4 carbon atoms substituted by one to three hydroxyl groups;
or E41 and E42 independently are an oligomer of poly(ethylene glycol) or poly(propylene glycol) terminated by hydroxy, methoxy, acetate or propionate, where the oligomer has a molecular weight up to about 500;
and
HY is an inorganic or organic acid.

7 more elements

An ink jet recording material which is coated with at least one layer which is able to absorb ink,

which at least one layer comprises at least one dialkyl N-hydroxylamine salt of the formula (R51 R52N—OH).(HY),
where
R51 is alkyl of 1 to 36 carbon atoms, cycloalkyl of 5 to 12 carbon atoms or aralkyl of 7 to 9 carbon atoms;
or R51 is said alkyl, cycloalkyl or aralkyl substituted by one to six alkyl of 1 to 12 carbon atoms, halogen, cyano, E41O—, E41CO—, E41OCO—, E41COO—, E41S—, E41SO—, E41SO2—, —NH2, —NHE41, —NE41E42, —PO(OE41)(OE42) or —OPO(OE41)(OE42) groups;
R52 is hydrogen or independently has the same meaning as R51, where at least one of R51 and R52 contains a hydrogen alpha to the —NOH moiety;
E41 and E42 independently are hydrogen, alkyl of 1 to 4 carbon atoms or alkyl of 1 to 4 carbon atoms substituted by one to three hydroxyl groups;
or E41 and E42 independently are an oligomer of poly(ethylene glycol) or poly(propylene glycol) terminated by hydroxyl, methoxy, acetate or propionate, where the oligomer has a molecular weight up to about 500;
and
HY is an inorganic or organic acid.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/735,319Filed 12 Dec 2003 · us provisional application
Priority: 20 Dec 2002
Published: US 2004/0126510 A11 Jul 2004
Granted: 28 Mar 2006
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B41M 5/52
Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording:…
C09D 11/38
Inkjet printing inks: characterised by non-macromolecular additives other than solvents, pigments or dyes
B41M 5/5227
Macromolecular coatings: characterised by organic non-macromolecular additives, e.g. UV-absorbers, plasticisers, surfactants
B41M 5/5236
Macromolecular coatings: characterised by the use of natural gums, of proteins, e.g. gelatins, or of macromolecular carbohydrates, e.g. cellulose