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11results about "Bisoxazines" patented technology

Pigment preparation based on c.i. pigment violet 23

ActiveEP4526383B1Optical filtersInks
A pigment formulation comprising a) C.I. Pigment Violet 23 of the formula (I) as base pigment, b) a perylenetetracarboxylic diimide compound that contains at least one sulfo group and is of the general formula (II) as pigment synergist, in which: A is a bivalent >NR1 or >N-R2-SO3 -X+ radical, R1 is a hydrogen atom or a C1-C30-alkyl group, preferably a C1-C18-alkyl group and especially a C1-C4-alkyl group, or an aryl group, preferably phenyl, where the aryl group may be unsubstituted or mono- or polysubstituted by halogen such as chlorine or bromine, sulfo, C1-C4-alkyl such as methyl or ethyl, C1-C4-alkoxy such as methoxy or ethoxy, or phenylazo, R2 is a straight-chain or branched C1-C6-alkylene group, especially ethylene or propylene, X+ is NR3R4R5R6+ with R3, R4, R5, R6 = H, unbranched or branched C1-C30-alkyl, phenyl or phenyl-C1-C6-alkyl.
Owner:SUDARSHAN SWITZERLAND HLD1 AG

Photosensitive coloring composition, cured film using the same, light-shielding filter, color filter, image display device, and solid-state image pickup device

To provide a photosensitive coloring composition capable of forming a cured film that excels in developability, adhesion, line width stability, and thickness uniformity, and barely causes foreign matter under high-temperature and high-humidity conditions.SOLUTION: A photosensitive coloring composition contains a black colorant (A), a dye derivative (B), a polymerizable compound (C), and a photopolymerization initiator (D), the photopolymerization initiator (D) containing an oxime-based photopolymerization initiator (D1) represented by the general formula (1), and an oxime-based photopolymerization initiator (D2) having a carbazole structure.SELECTED DRAWING: None
Owner:TOYO INK MFG CO LTD +1

PIGMENT PREPARATION BASED ON CI PIGMENT VIOLET 23

ActiveDE502023003517D1BisoxazinesAnthracene dyesSoftware engineeringPhotopigment
Owner:HEUBACH HLDG SWITZERLAND AG (LTD)

Photosensitive composition, method for producing photosensitive composition, film, optical filter, solid-state imaging device, and image display device

ActiveJP7727454B2Monoazo dyesQuinoline dyes
To provide a photosensitive composition whereby: when forming pixels by photolithography using the photosensitive composition after its storage, it is possible to suppress the generation of residues among the pixels and the peeling of the pixels and a method for producing the same; and a film, an optical filter, a solid state image sensor and an image display device each including the photosensitive composition.SOLUTION: A photosensitive composition contains a pigment, a polymerizable compound, a photopolymerization initiator, and a reactant of a polyalkyleneimine and an acid anhydride.SELECTED DRAWING: None
Owner:FUJIFILM CORP

Manufacturing method of organic-inorganic composite functional pigment

The manufacturing method of the present invention is as follows: Step 1: Dissolve 10 parts by weight of raw material A in 300 parts by weight of water, and add 2 parts by weight of raw material B and 0.2 parts by weight of polyethylene glycol. Step 2: Add 5 parts by weight of butyl titanate and 1 part by weight of organic acid, and heat at 75°C for 2 hours to react. Step 3: Add 4 parts by weight of ethylene glycol and 0.2 parts by weight of hydrochloric acid, and stir for 1 hour. Step 4: Sealed and aged at 50°C for 24 hours, washed with water, centrifuged, isolated from oxygen, and calcined for 4 hours to obtain a preliminary product. Step 5: Disperse 10 parts by weight of the product in 400 parts by weight of N,N'-dimethylacetamide, add 0.2 parts by weight of 4-dimethylaminopyridine and 5 parts by weight of styrene-maleic anhydride copolymer, and heat to 45°C to react for 12 hours. Step 6: Wash with ethanol, separate, and dry, then mix with dispersant, pigment, coupling agent, and solvent, and grind to form a composite functional pigment.
Owner:SHANGHAI HUZHENG IND CO LTD

Photosensitive composition, film, color filter, solid-state image sensor, and image display device.

Provided are: a photosensitive composition comprising: a pigment-containing coloring agent A, a pigment derivative B, and a resin C, wherein the coloring agent A contains a blue pigment, and the pigment derivative B contains a transparent pigment derivative B1 and a chromatic pigment derivative B2, the total content of the coloring agent A and the pigment derivative B in the total solid content of the photosensitive composition is 40 mass% or more; a film using the photosensitive composition; a color filter; a solid imaging element; and an image display device.
Owner:FUJIFILM CORP

Compositions, films, optical filters, solid-state image sensors, image display devices, infrared sensors, camera modules, and near-infrared absorbing dyes

The present invention provides a composition, film, optical filter, solid-state image sensor, image display device, infrared sensor, camera module, and near-infrared absorbing dye capable of forming a film in which the occurrence of foreign matter defects is suppressed. [Solution] A composition comprising a near-infrared absorbing dye having an inclusion compound structure a1 in which a compound represented by formula (1) is a guest and a cyclic compound that encloses the aforementioned guest is a host, or an inclusion compound structure a2 in which a compound having a pigment structure derived from a compound represented by formula (1) is a guest and a cyclic compound that encloses the pigment structure of the aforementioned guest is a host, a curable compound, and a solvent. JPEG2026049421000090.jpg30170
Owner:FUJIFILM CORP

Preparation method of pigment violet 23 for engineering plastics

ActiveCN117624934BBisoxazinesPtru catalystCarbazole
This invention belongs to the field of pigment violet preparation technology, and discloses a method for preparing pigment violet 23 for engineering plastics, comprising the following steps: S1: adding tetrachlorobenzoquinone to an organic solvent containing 3-amino-N-ethylcarbazole, then gradually adding a catalyst to react and obtain a condensate, and then using an oxidizing agent to oxidize the obtained condensate; S2: filtering, washing and drying the reaction product obtained in step S1 to obtain the finished pigment violet 23, the product having an extremely rare reddish violet hue, which is more vivid and has stronger tinting strength than ordinary bluish violet, and has excellent temperature resistance, light resistance and migration resistance.
Owner:CGN TUOPU (HUBEI) NEW MATERIALS CO LTD