33results about "Diazomethine dyes" patented technology

Embodiments of the present invention provide methods and nucleic acid reporter molecules for the detection of nucleic acid in a sample. The nucleic acid reporter molecule comprises two unsymmetrical cyanine monomer moieties, which may be the same or different, that are covalently attached by a linker comprising at least one aromatic, heteroaromatic, cyclic or heterocyclic moiety comprising 3-20 non-hydrogen atoms selected from the group consisting of O, N, S, P and C. The linker may be rigid, relatively flexible or some degree thereof. The unsymmetrical cyanine monomer moieties comprise a substituted or unsubstituted benzazolium moiety and a substituted or unsubstituted pyridinium or quinolinium moiety that is connected by a methine bridge that is monomethine, trimethine or pentamethine. The linkers form the cyanine dimer compounds by attaching to the pyridinium or quinolinium moiety of the monomer moieties. The present nucleic acid reporter molecules find utility in forming a nucleic acid-reporter molecule complex and detecting the nucleic acid. In particular, present nucleic acid reporter molecules with a rigid linker and monomer moieties with a monomethine bridge find utility in detecting RNA in the presence of DNA.

A chromogenic absorbent material and related chromogenic solution, use, process and application for an animal litter. The chromogenic absorbent material includes an absorptive material for absorbing an animal excretion; an oxidizing agent responsive to peroxidatic / pseudoperoxidatic activity in the animal excretion to provide oxidizing activity; and an inclusion complex including a host compound and a guest compound, the guest compound being a chromogenic indicator associated with the host compound and being chromogenically responsive to the oxidizing activity of the oxidizing agent. The chromogenic absorbent material may be prepared from the chromogenic solution including the oxidizing agent and the inclusion complex. The chromogenic absorbent material may be used as particles combined with animal litter for detection of peroxidatic / pseudoperoxidatic activity in the animal excretion. The chromogenic material or solution may include a buffering agent, a colour enhancer, a stabilizer or a metal-scavenger agent or a combination thereof.

The purpose of the present invention is to provide a novel compound having a specific xanthene derivative multimeric structure, and that provides a printed item having greater ozone resistance, light resistance, and other image durability characteristics than conventional printed items. The compound is indicated by general formula (1). (In general formula (1), L indicates a divalent to tetravalent linking group. D indicates a residue having 1-5 hydrogen atoms removed from a compound indicated by general formula (2). m indicates an integer between 1 and 10. However the plurality of L can each be the same or different. n indicates an integer between 2 and 10. However, the plurality of D can each be the same or different. In general formula (2), R4-R24 each independently indicate a hydrogen atom or a substituent group, but same have at least one ionic hydrophilic group.)

Disclosed are a new dichroic dye having liquid crystal properties and dichroic properties and capable of being used for forming a polarization film with excellent heat resistance, durability, and polarizing properties, a composition including the same for a polarization film, a method for forming a polarization plate with excellent durability using the composition, and a polarization plate prepared thereby. The new dichroic dye has a structure of R1-L1-(M,L,D) (where, D is a dichroic structure, M is a structure with liquid crystal properties, R1 is a reactive end functional group, and L and L1 are linking structures). The composition for a polarization film includes the dichroic dye. In the method for forming the polarization plate, the composition for a polarization film is applied to a substrate and cured to prepare the polarization plate. The polarization plate has excellent dichroic ratio, heat resistance, durability, and polarizing properties.

The present invention relates generally to substrates for making polymers and methods for making polymers. The present invention also relates generally to polymers and devices comprising the same.

The present invention relates generally to substrates for making polymers and methods for making polymers. The present invention also relates generally to polymers and devices comprising the same.

The present invention provides a negative dye-containing curable composition comprising at least (A) an alkali-soluble binder, (B) an organic solvent-soluble dye, (C) a photopolymerization initiator, (D) a radical-polymerizable monomer and (E) an organic solvent, wherein the organic solvent-soluble dye (B) comprises at least one kind of azomethine-type dye represented by the following formula (I) and at least one kind of tetraazaporphyrin-type dye represented by the following formula (A), and the photopolymerization initiator (C) is an oxime-type compound,wherein R1 represents a hydrogen atom or a substituent group; R2 to R5 each represent a hydrogen atom or a substituent group, R6 to R7 each represent an alkyl group, alkenyl group, aryl group or heterocyclic group, Za and Zb each represent —N═ or —C(R8)═; R8 represents a hydrogen atom, alkyl group, aryl group or heterocyclic group; M1 represents a metal, and Z1 to Z4 each represent an atomic group forming a 6-membered ring composed of atoms selected from carbon and nitrogen.

A dye composition dissolvable within a liquid crystal host device (including: polymer dispersed liquid crystal, polymer network liquid crystal, polymer stabilized liquid crystal, liquid crystal displays and similar devices), comprising eutectic mixtures of dichroic metallomesogen molecules. The aforesaid metallomesogen molecules comprise chromophore groups synthesized by physical and chemical mixing methods.

An oxime ester compound of specified structure. In particular, in a photopolymerizable composition comprising (a) black color material, (b) organic binder and (c) photopolymerization initiator, the oxime ester compound constitutes the component (c). The oxime ester compound can be used as a highly sensitive photopolymerization initiator. The photopolymerizable composition containing the oxime ester compound in the form of a thin film excels in sensitivity and resolving power while exhibiting high light shielding capability, so that it is capable of forming a resin black matrix (BM) of low cost but high quality. The color filter utilizing this resin BM excels in precision, flatness and durability, so that it is capable of enhancing the display quality of liquid crystal device. Moreover, the production process and color filter per se do not involve any hazardous substances, so that the danger to human body can be reduced and environmental safety can be enhanced. Application thereof can be made to usages in which no color material is used, such as photospacer and rib (liquid crystal divided-alignment protrusion).

The present invention relates to modified proppants and methods of using the modified proppants that use metal ligand tracers to characterize subterranean fluid flow. The metal and ligands are best chosen to be a strongly-coordinating, chelating ligand with a functional group for the chosen flow environment.

The invention relates to a compound chosen from the compounds of formulae (I) and (II), the leucoforms thereof, the optical and geometrical isomers thereof and the tautomers thereof, and also the addition salts thereof with an acid or a base, and the solvates thereof. The invention also relates to the use of these particular compounds for dyeing keratin fibres.

The invention discloses a fluorescent compound used for detecting isocyanate substances, a preparation method and its application as a test paper type detection probe. The fluorescent compound is 2,4-bis(((4'-(diphenylamino)-[1,1'-biphenyl]-4-yl)imino)methyl)phenol. The fluorescent compound is prepared by a one-step method, has simple preparation and high yield, can respond quickly and specifically to isocyanate substances, and its fluorescence intensity will increase with the increase of isocyanate concentration. The fluorescent compound can be made into a portable test paper probe for detecting isocyanate substances in the air, and can realize visual detection of volatile isocyanate gases. The probe has an aggregation-induced luminescence effect, and can have a higher fluorescence quantum yield when a test paper type probe is used for detection. The fluorescent probe prepared by the invention can be used in the detection of solution and gaseous isocyanate substances, and can be used to monitor the isocyanate in the atmosphere, water resources and the like.

A color material dispersion liquid including a color material, a dispersant and a solvent, wherein the color material contains a compound which is represented by the following general formula (I) and which contains one or more structures selected from the following structures (i) and (ii); wherein (i) “A” is an aliphatic hydrocarbon group containing two or more alicyclic hydrocarbon groups, containing a saturated aliphatic hydrocarbon group at a terminal position directly bound to “N”, and optionally containing O, S, N in a carbon chain, and (ii) at least one of R2 to R5 is a cycloalkyl group optionally containing a substituent group or an aryl group optionally containing a substituent group.

The invention relates to an asymmetric diimine palladium catalyst as shown in the following formula and a ligand, preparation method and application thereof, wherein R1-R6 and X are defined according to the description. The palladium catalyst has high heat stability and activity on ethylene polymerization, and polyethylene which has an appropriate branching degree and high molecular weight is generated; in addition, the catalyst can be used for copolymerization of ethylene and methyl acrylate. Please see the formula in the description.