459results about "Disazo dyes" patented technology

The object of the present invention is to provide a radiation-sensitive colored composition which can supress the generation of the contamination of the device.

A radiation-sensitive colored composition including: (A) a dye containing of from 10 ppm to 1000 ppm of a halogen ion; (B) a polymerizable compound; and (C) a solvent.

An ink containing at least one dye represented by formula (1):

wherein R¹, R² and R³ are each independently a hydrogen atom or a monovalent group; Z is a nitrogen atom, or a carbon atom to which a hydrogen atom or a monovalent group is bonded; and at least one of R¹, R², R³, and the monovalent group that Z has is a substituent having a heterocyclic group substituted with an azo group.

The present invention recites a method comprising reacting in a solvent in the presence of a basea) at least one diacidic monomer comprising about 1 to 100 mole % of at least one light-absorbing monomer having a light absorption maximum between about 300 nm and about 1200 nm and 99-0 mole % of a non-light absorbing monomer which does not absorb significant light at wavelengths above 300 nm or has a light absorption maximum below 300 nm, withb) an organic compound of Formula IIwherein B is a divalent organic radical to form a light absorbing composition comprising a mixture of a polymer having the formulaand a cyclic compound having the general formulawherein B is as defined above; n is at least 2, m is 1, 2, 3 or 4 and A comprises the residue of a diacidic monomer comprising about 1 to 100 mole % of at least one light-absorbing monomer having a light absorption maximum between about 300 nm and about 1000 nm and wherein the remaining portion of A comprises the residue of a non-light absorbing monomer which does not absorb significant light at wavelengths above 300 nm or has a light absorption maximum below 300 nm.

[Problem] To provide a coloring matter which has a good hue, and is capable of forming an image high in fastness property under various use conditions and environmental conditions, and particularly suitable for an ink.

[Solving Means] A coloring matter represented by the following formula (I):

Bis-diazo,triaryl and aryldiazo-N-arylphenazonium quencher moieties, substituted with electron-withdrawing and electron-donating substituents which induce polarity in the delocalized aryl/diazo ring systems, are useful as labels when attached to biomolecules such as polynucleotides, nucleosides, nucleotides, and polypeptides. The quencher moieties are non-fluorescent and accept energy from fluorescent reporter labels by any energy-transfer mechanism, such as FRET. Fluorescence quencher compositions are useful in preparing quencher labelled biomolecules for various molecular biology assays based on fluorescence detection.

The invention relates to optical devices for producing and/or transforming polarised electromagnetic emission by means of anisotropic absorption and/or optical rotation effects and/or birefringence and can be used as different polarizers (dichroic, reflecting), lagging layers (retarders), liquid-crystal displays and indicators and also for producing polarising glass for building construction and for sun and antiglare glasses, masks, aprons and faceplates. The inventive optical device is based on at least one molecularly oriented layer of a low-molecular or oligomeric dichroic material which can form a stable lyotropic liquid crystal structure. The projection of at least one anisotropically absorbing fragment of a molecule of the dichroic material on the surface of the molecularly oriented layer of a dipole moment of optical transition is disposed in a parallel position to the optical axis of the molecularly oriented layer at least within several ranges of wavelength of the electromagnetic emission.

The invention provides a method for preparing a water-soluble azo dye continuously by the chaos mixing of a spiral tube. The core is that a spiral tube sudden-expansion and sudden-contraction structure is adopted; compared with pure straight tube sudden-expansion and sudden-contraction mixed reaction, the method has the advantages that a mixed effect of a transverse secondary flow generated by fluid in a curved pipeline is far stronger than that of pure diffusion of a straight tube part; compared with the conventional spiral tube, the sudden-expansion and sudden-contraction part has the advantages that the motion trail of the fluid can be changed, the superficial area of a mixed interface can be increased and a chaos mixing effect can be enhanced; and the mixer has the advantages of quick and uniform mixing, stirring prevention, short retention time, high quality stability of the product, high speed of removing reaction heat by a tube wall and the like of a microreactor, and also overcomes the defects of small internal diameter and high possibility of blockage of the microreactor, so that the dye can be produced quickly and continuously, and the method is wide in industrial prospect.

New and useful low viscosity polymeric colorant formulations are provided comprising extremely low amounts of viscosity modifiers that drastically reduce the overall viscosity of the resultant colorant formulation as compared with the viscosity of the colorants themselves. In such a manner, the resultant formulation facilitates the utilization of such polymeric colorants within certain coloring processes and methods requiring low viscosity formulations while simultaneously permitting substantial retention of the same high color strength characteristics of the unmodified colorants. Such an unexpected result thus permits production and utilization of a low viscosity formulation that does not sacrifice colorability to an appreciable degree for target substrates or media. The inventive formulations thus comprise any number of polymeric colorants, (i.e., oxyalkylenated colorants comprising at least one chromophore constituent and at least oxyalkylene chain) and at least one viscosity modifying agent possessing a dipole moment of between 1.0 and 5.0 and/or a flash point of from about -20° C. to about 180° C. Such a modifying agent provides a significant reduction in viscosity at low levels (to permit better pumpability of the desired colorants) with no appreciable differences in coloring performance within final target media, and facilitates removal of such modifiers during or after utilization. Methods of production, utilization, and products produced with such formulations and by such methods are also encompassed within this invention.

Azo compounds represented by formula (1) or (2) (In the formulas, A represents a phenyl group or naphthyl group that has at least 1 substituent. R₁-R₄ represent a hydrogen atom, lower alkyl group or lower alkoxy group, with at least one of R₁-R₄ being a lower alkoxy group that has a sulfone group. X represents an optionally substituted amino group, optionally substituted benzoylamino group, optionally substituted phenylamino group, optionally substituted phenyl azo group or optionally substituted naphthotriazole group) and salts thereof.

A novel ink composition, which has an absorption characteristic excellent in color reproducibility as a yellow color of one of the three primary colors, which has enough fastness against light, heat and humidity, and which does not cause bronze phenomenon, is provided. The ink composition contains water, a yellow dye having an oxidation potential nobler than 1.0 V, and an aromatic compound, aliphatic compound and/or a salt thereof having at least one of carboxyl group, sulfo group and phosphoric acid group.

This invention relates to bis-azo colorants for use as bluing agents, laundry care compositions comprising bis-azo colorants that may serve as bluing agents, processes for making such bluing agents and laundry care compositions and methods of using the same. The bluing agents are generally comprised of at least two components: at least one chromophore component and at least one polymeric component. These bluing agents are advantageous in providing a whitening effect to fabrics, while not building up over time and causing undesirable blue discoloration to the treated fabrics.

The present invention provides a new class of solids supports for synthesis of modified oligomers of nucleic acids, and nucleic acid probes that have a format expediently synthesized on the new supports. Exemplary solid supports include at least one quencher bound through a linker to the solid support. Various exemplary embodiments include a moiety that stabilizes a duplex, triplex or higher order aggregation (e.g., hybridization) of nucleic acids of which the oligomer of the invention is a component. Other components of the solid support include moieties that stabilize aggregations of nucleic acids, e.g., intercalators, minor groove binding moieties, bases modified with a stabilizing moiety (e.g., alkynyl moieties, and fluoroalkyl moieties), and conformational stabilizing moieties, such as those described in commonly owned U.S. Patent Application Publication No. 2007/0059752.

The present invention is drawn to dye sets for formulating ink-jet ink sets, and to specific ink sets. The dye set can comprise cyan colorant including a phthalocyanine dye; magenta colorant including a copper- or nickel-containing azo dye; and yellow colorant including at least one of Yellow 1189 dye and Yellow 104 dye yellow colorant having the structure Formula 1:

wherein R₁ is H, SO₃M, COOM, or SO₂NH₂; and wherein R₂ is H, SO₃M, COOM, or SO₂NH₂; and wherein R₃ is H or CH₃; and wherein n and m are 2, 3, 4, 5 or 6; and wherein M is H, Na, Li, K, ammonium, ammonium substituted with alkyl or combinations thereof. Optionally, a cyan triarylmethine dye such as Acid Blue 9, or another similar cyan dye, can be blended with the phthalocyanine dye; a rhodamine dye can be blended with the copper- or nickel-containing azo dye; and/or Acid Yellow 17 or Acid Yellow 23 can be blended with Formula 1.

The present invention relates to an azo compound represented by the following formula (1):

wherein A denotes a phenyl group having 1 to 3 substituents such as sulfonic acid group, amino group, lower alkyl groups and lower alkoxyl groups, or a naphthyl group, B denotes hydrogen atom, sulfonic acid group, a lower alkyl group, a lower alkoxyl group or the like, each of R¹ to R⁴ independently denotes hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxyl group or the like, D denotes —NHCO—, —N═N— or —NH—, E denotes hydrogen atom, a lower alkyl group or a phenyl group having 1 to 3 substituents such as hydroxyl group and amino group, n denotes 0 or 1, and m denotes 0 or 1, or a salt thereof, or a copper complex compound of either of them, which is used for a polarizing plate having excellent polarization performance and durability and furthermore little color leakage in visible light range.

Disclosed is an azo compound represented by the formula (1) below, a salt thereof, or a copper complex salt compound thereof.

(In the formula, R1 and R2 independently represent a hydrogen atom, a sulfonic acid group, a lower alkyl group or a lower alkoxyl group; R3-R6 independently represent a hydrogen atom, a lower alkyl group or a lower alkoxyl group; R7 represents a lower alkyl group or a lower alkoxyl group; and n represents 0 or 1.)

Black disazo dyes of general formula (V)

wherein

A is a moiety of formula (VI)

or of formula (VII)

and

B is a moiety of formula (VIII)

or of formula (IX)

and wherein M, R₁, R₂, R₃, R₄, R₅, R₆, R₇, R₈, R₉, R₁₀, R₁₁, R₁₂, R₁₃, R₁₄, R₁₅, R₁₆, R₁₇, R₁₈, R₁₉, R₂₀, R₂₁, R₂₂, R₂₃ and R₂₄ are as defined in the specification, are excellent black dyes for dying and printing cellulose containing materials and textile materials and, in particular, for the preparation of recording liquids for ink jet printing and for writing utensils.

A colored composition for image formation which comprises an azo dye represented by formula (1); an ink for ink-jet recording and a method of ink-jet recording each comprising or using the composition; and a heat-sensitive recording material, color toner, and color filter each formed from the composition.

In the formula, R₁ represents a substituted or unsubstituted, aryl or heterocyclic group; R₂ represents a hydrogen atom, a substituted or unsubstituted, alkyl, aryl, or heterocyclic group, etc.; and R₃, R₄, R₅, and R₆ each independently represents a hydrogen atom, a halogen atom, an alkyl group, an aromatic group, an alkylsulfonylamino group or an acylamino group, etc.