摘要:
A pigment dispersion includes a color pigment represented by formula (I): wherein X1 to X4 are independently selected from the group consisting of hydrogen and a halogen atom; R1 to R10 are independently selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, a methoxy group, and an ethoxy group; and a polymeric dispersant, having via a linking group covalently linked to its polymeric backbone, at least one pending chromophore group which has a molecular weight smaller than 90% of the molecular weight of the color pigment; wherein the at least one pending chromophore group is a chromophore group occurring as a side group on the polymeric backbone and not a group in the polymeric backbone itself or occurring solely as an end group of the polymeric backbone; and the at least one pending chromophore group is represented by formula (II): wherein, one of L1, L2 or L3 is the linking group and is selected from the group consisting of an aliphatic group, a substituted aliphatic group, an unsaturated aliphatic group, and a substituted unsaturated aliphatic group; L1, L2, and/or L3, if not representing the linking group, are independently selected from the group consisting of hydrogen, an alkyl group, an alkenyl group, an alkoxy group, a carboxylic acid group, an ester group, an acyl group, a nitro group, and a halogen; AR1 and AR2-represent an aromatic group; and n represents the integer 0 or 1. The pigment dispersion can be advantageously used in inkjet inks. Also disclosed are methods for preparing the inkjet ink.
摘要:
A pigment dispersion includes a color pigment represented by formula (I): wherein X1 to X4 are independently selected from the group consisting of hydrogen and a halogen atom; R1 to R10 are independently selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, a methoxy group, and an ethoxy group; and a polymeric dispersant, having via a linking group covalently linked to its polymeric backbone, at least one pending chromophore group which has a molecular weight smaller than 90% of the molecular weight of the color pigment; wherein the at least one pending chromophore group is a chromophore group occurring as a side group on the polymeric backbone and not a group in the polymeric backbone itself or occurring solely as an end group of the polymeric backbone; and the at least one pending chromophore group is represented by formula (II): wherein one of L1, L2, or L3 is the linking group and is selected from the group consisting of an aliphatic group, a substituted aliphatic group, an unsaturated aliphatic group, and a substituted unsaturated aliphatic group; L1, L2, and/or L3, if not representing the linking group, are independently selected from the group consisting of hydrogen, an alkyl group, an alkenyl group, an alkoxy group, a carboxylic acid group, an ester group, an acyl group, a nitro group, and a halogen; AR1 and AR2 represent an aromatic group; and n represents the integer 0 or 1. The pigment dispersion can be advantageously used in inkjet inks. Also disclosed are methods for preparing the inkjet ink.
摘要:
A monomer with a chromophore group represented by Formula (I): wherein AR1 represents a substituted or unsubstituted aromatic group; AR2 represents a substituted or unsubstituted aromatic group or a substituted or unsubstituted alkyl group; and R represents a substituted or unsubstituted alkyl group, with the proviso that one of R, AR1, and AR2 has a substituent with a polymerizable functional group. The monomer can be advantageously used to prepare polymeric dispersants for pigment dispersion, especially inkjet inks.
摘要翻译:具有由式(I)表示的发色团的单体:其中AR 1表示取代或未取代的芳族基团; AR 2表示取代或未取代的芳基或取代或未取代的烷基; 并且R表示取代或未取代的烷基,条件是R 1,AR 1和AR 2 2中的一个具有可聚合官能团的取代基。 该单体可有利地用于制备用于颜料分散的聚合物分散剂,特别是喷墨油墨。
摘要:
A pigmented inkjet ink comprising a pigment and a polymeric dispersant wherein the polymeric dispersant is a statistical copolymer comprising between 3 and 11 mol % of a long aliphatic chain (meth)acrylate wherein the long aliphatic chain contains at least 10 carbon atoms.
摘要:
A method of lithographic printing includes the steps of (i) providing a heat-sensitive lithographic printing plate precursor including, on a support having a hydrophilic surface or which is provided with a hydrophilic layer, a coating having a polymer modified with at least two groups which can form four hydrogen bonds, the groups being defined as quadruple hydrogen bonds (QHB groups); (ii) exposing the printing plate precursor to heat and/or infrared light whereby the coating switches from a hydrophilic state into a hydrophobic state or from a hydrophobic state into a hydrophilic state, thereby producing a lithographic printing master without an intermediate wet development step; and (iii) supplying ink and/or fountain solution to the lithographic printing master via a lithographic printing press.
摘要:
A pigment dispersion includes a color pigment and a polymeric dispersant having at least one pending chromophore group covalently bound to the polymeric backbone of the polymeric dispersant through a linking group. The at least one pending chromophore group has a molecular weight which is smaller than 85% of the molecular weight of the color pigment; the at least one pending chromophore group occurs as a side group on the polymeric backbone and not as a group in the polymeric backbone itself or occurring solely as an end group of the polymeric backbone; the linking group consists of all the atoms between the polymeric backbone and the first atom of the aromatic group by which the pending chromophore group is linked to the polymeric backbone; and the at least one pending chromophore group has a similarity coefficient SIM of at least 0.75.
摘要:
A pigment dispersion includes a color pigment represented by formula (I): wherein R1 to R10 are independently selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, a methoxy group, an ethoxy group, —CF3, —COOH, —COOCH3, —SO2NH—C6H5, —CONH—C6H5, —CONH—C6H5—CONH2, and —CONH2; and a polymeric dispersant, having via a linking group covalently linked to its polymeric backbone, at least one pending chromophore group which has a molecular weight smaller than 95% of the molecular weight of said color pigment. The pigment dispersion can be advantageously used in inkjet inks.
摘要翻译:颜料分散体包括由式(I)表示的着色颜料:其中R 1至R 10独立地选自氢,卤素原子,甲基,乙基,甲氧基,乙氧基,-CF 3 ,-COOH,-COOCH 3,-SO 2 NH-C 6 H 5,-CONH-C 6 H 5,-CONH-C 6 H 5 -CONH 2和-CONH 2; 和通过与其聚合物主链共价连接的连接基团的聚合物分散剂,至少一种分子量小于所述彩色颜料的分子量的95%的未决发色团。 颜料分散体可以有利地用于喷墨油墨中。
摘要:
A pigment dispersion includes a color pigment represented by Formula (I): wherein R1 to R8 are independently selected from the group consisting of hydrogen, an alkyl group, and a halogen; a polymeric dispersant having, via a linking group covalently linked to its polymeric backbone, at least one pending chromophore group; and the at least one pending chromophore group is a chromophore group occurring as a side group on the polymeric backbone and not a group in the polymeric backbone itself or occurring solely as an end group of the polymeric backbone; and the at least one pending chromophore group is represented by the Formula (II): wherein L is a linking group forming a covalent bond with the polymeric backbone; and R1 to R8 are independently selected from the group consisting of hydrogen, an alkyl group, and a halogen.
摘要:
The invention relates to a process for preparing water-soluble &pgr;-conjugated polymers by polymerizing, in aqueous solution using an oxidant, monomeric thiophene derivatives of formula (I) wherein X and Y are identical or different and are O, S, or N—R′, Z is —(CH2)m—CR2R3—(CH2)n—, R1 is aryl, C1-C18-alkyl, or hydrogen, R2 is hydrogen or —CH2)s—O—(CH2)p—SO3−M+, R3 is —(CH2)s—O—(CH2)p—SO3−M+, M+ is a cation, m and n are identical or different and are an integer from 0 to 3, s is an integer from 0 to 10, and p is an integer from 1 to 1.
摘要:
A pigment dispersion includes a color pigment and a polymeric dispersant having at least one pending chromophore group covalently bound to the polymeric backbone of the polymeric dispersant through a linking group, wherein the at least one pending chromophore group is a derivative from a color pigment selected from the group consisting of monoazo pigments, disazo pigments, β-naphtol pigments, naphtol AS pigments, azo pigment lakes, benzimidazolone pigments, disazo condensation pigments, metal complex pigments, isoindolinone pigments, isoindolinine pigments, phthalocyanine pigments, quinacridone pigments, diketopyrrolo-pyrrole pigments, thioindigo pigments, anthraquinone pigments, anthrapyrimidine pigments, indanthrone pigments, flavanthrone pigments, pyranthrone pigments, anthanthrone pigments, isoviolanthrone pigments, aluminum pigment lakes, dioxazine pigments, triarylcarbonium pigments, and quinophthalone pigments; the at least one pending chromophore group is a chromophore group occurring as a side group on the polymeric backbone and not a group in the polymeric backbone itself or occurring solely as an end group of the polymeric backbone; the linking group consists of all the atoms between the polymeric backbone and the first atom of the aromatic group by which the pending chromophore group is linked to the polymeric backbone; the polymeric dispersant has a polymeric backbone with a polymerization degree between 5 and 1,000; and at most 30 % of the monomer units of the polymeric backbone have a pending chromophore group. The pigment dispersion can be advantageously used in inkjet inks. Also disclosed is a method for preparing the pigment dispersion including the step of preparing the polymeric dispersant by copolymerizing a monomer already containing the pending chromophore group.