Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

74results about "Artificial dyes" patented technology

Resist composition, method of forming resist pattern, compound and acid generator including the same

A resist composition including a base component (A) which exhibits changed solubility in an alkali developing solution under the action of acid and an acid-generator component (B) which generates acid upon exposure, wherein the acid-generator component (B) includes an acid generator (B1) composed of a compound having a base dissociable group within a cation moiety.
Owner:TOKYO OHKA KOGYO CO LTD

Photoacid generators and lithographic resists comprising the same

The present invention relates to photoacid generating compounds, lithographic resists comprising photoacid generating compounds, and to various lithographic processes techniques, and applications. In one embodiment, the present invention provides a photoacid generator of Formula (I):
Owner:THE UNIV OF NORTH CAROLINA AT CHAPEL HILL

High refractive index pressure-sensitive adhesives

The present invention provides pressure-sensitive adhesives having a refractive index of at least 1.50. The pressure-sensitive adhesives comprise at least one monomer containing a substituted or an unsubstituted biphenyl group.
Owner:3M INNOVATIVE PROPERTIES CO

Polyoxyalkylenepolyols and process for producing ring-opened polymer

A polyoxyalkylene polyol or monool (I) of the general formula (1) below, in which not less than 40% of the terminally located hydroxyl-containing groups, namely -AO-H groups, are primary hydroxyl-containing groups of the general formula (2) below, or;a method of producing ring-opening polymerization products, by subjecting a heterocyclic compound to ring-opening addition polymerization with an active hydrogen-containing compound, using as a catalyst tris(pentafluorophenyl)borane, tris(pentafluorophenyl)aluminum, etc.
Owner:SANYO CHEM IND LTD

Lubricating oil additive and lubricating oil composition containing same

An overbased salt of an oligomerized alkylhydroxyaromatic compound for use in a lubricating oil composition is disclosed, wherein the alkyl group of the alkylhydroxyaromatic compound is derived from an olefin mixture comprising propylene oligomers having an initial boiling point of at least about 195° C. and a final boiling point of greater than 325° C. and up to about 400° C. as measured by ASTM D86. Also disclosed is a propylene oligomer having an initial boiling point of at least about 195° C. and a final boiling point of greater than 325° C. and up to about 400° C. as measured by ASTM D8, wherein the propylene oligomer contains a distribution of carbon atoms that comprise at least about 50 weight percent of C14 to C20 carbon atoms.
Owner:CHEVRON ORONITE SA

Black perylene-based pigment and process for producing the same

A black perylene-based pigment comprising a solid solution obtained by calcining a mixture of at least two compounds selected from the group consisting of anhydrides of perylene tetracarboxylic acid, diimide derivatives of perylene tetracarboxylic acid and diimide derivatives of perylene diiminodicarboxylic acid, exhibits an excellent blackness, an excellent heat resistance and an excellent weather fastness as well as a high resistance and a high safety.
Owner:BASF AG

Process for producing pheomelanine by Maillard reaction of amino-acid with glucose

The method for producing melanoid by using amino acid and glucose Maillard reaction includes the following steps: adding 90%-99% of glucose and 1-10% of amino acid or amino acid composite in a reactor, heating to 120-150 deg.C, after 2-3 hr. the melanoid used in food, beverage and medicine can be obtained. Said invention has no need of adding NH4Cl, (NH4)2SO4, urea or ammonia water, its taste is good, colour intensity is high, it contains no carcinogenic harmful substances of 4-methyl imidazole. Its preparation process is simple and operation is convenient.
Owner:HUBEI UNIV

Sulfur modified silanes for the elaboration of high refractive index materials

ActiveUS20090287015A1Improving dirty mark resistanceGood optical performanceSilicon organic compoundsArtificial dyesThiolSilanes
A composition having a polythiol reactant and an alkenyl silane reactant which are combined to form a polysulfide polysilane. In the process, the reactants are combined in a thiol-ene addition process driven by UV radiation. The polysulfide polysilane is then hydrolyzed and may be combined with other hydrolyzed compounds. For coatings, the polysulfide polysilane is hydrolyzed and may optionally be combined with nanoparticles. For bulk materials, the polysulfide polysilane is hydrolyzed, concentrated and heated to form a high refractive index material which can be used to form lenses.
Owner:ESSILOR INT CIE GEN DOPTIQUE

Black perylene pigment and process for producing the same

A black perylene-based pigment produced by calcining at least one compound selected from the group consisting of diimide derivatives of perylene tetracarboxylic acid and diimide derivatives of perylene diiminodicarboxylic acid, at a temperature of 200 to 600° C. in vacuum or in an inert gas atmosphere, exhibits an excellent blackness, an excellent heat resistance and an excellent weather fastness as well as a high resistance and a high safety.
Owner:BASF AG

Lubricating oil compositions

Disclosed herein is a neutral or overbased salt of a sulfurized alkylhydroxyaromatic compound obtained by the process comprising the steps of (a) sulfurizing an alkylhydroxyaromatic compound derived from alkylation of a hydroxyaromatic compound with one or more olefins comprising C9 to C18 oligomers of monomers selected from propylene, butylene or mixtures thereof to provide a sulfurized alkylhydroxyaromatic reaction product; (b) removing any unsulfurized alkylhydroxyaromatic compound from the sulfurized alkylhydroxyaromatic reaction product of step (a) to obtain a sulfurized alkylhydroxyaromatic compound substantially free of the unsulfurized alkylhydroxyaromatic compound; and (c) neutralizing the sulfurized alkylhydroxyaromatic compound of step (b) to provide a salt of the sulfurized alkylhydroxyaromatic compound, wherein the overbased salt of the sulfurized alkylhydroxyaromatic compound contains less than about 2% by combined mass of the unsulfurized alkylhydroxyaromatic compound and its unsulfurized metal salt.
Owner:CHEVRON ORONITE SA

Black perylene pigment and process for producing the same

InactiveUS20050016420A1Improve thermal stabilitySuitable change in molecular arrangementArtificial dyesAnthracene dyesHigh resistancePerylene
A black perylene-based pigment produced by calcining at least one compound selected from the group consisting of diimide derivatives of perylene tetracarboxylic acid and diimide derivatives of perylene diiminodicarboxylic acid, at a temperature of 200 to 600° C. in vacuum or in an inert gas atmosphere, exhibits an excellent blackness, an excellent heat resistance and an excellent weather fastness as well as a high resistance and a high safety.
Owner:BASF AG

Solvent extraction for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition

Disclosed is a process for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition having a reduced content of unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt. The process involves at least the steps of: (a) providing a composition comprising (i) a salt of a sulfurized alkyl-substituted hydroxyaromatic compound; (ii) an unsulfurized alkyl-substituted hydroxyaromatic compound and (iii) an unsulfurized metal salt of the alkyl-substituted hydroxyaromatic compound; wherein the alkyl-substituted hydroxyaromatic compound is derived from alkylation of a hydroxyaromatic compound with one or more olefins comprising C9 to C18 oligomers of monomers selected from propylene, butylene or mixtures thereof; and (b) extracting the unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt from the composition of step (a) with one or more solvents capable of solubilizing the unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt and under extraction conditions sufficient to provide a salt of a sulfurized alkyl-substituted hydroxyaromatic composition having a reduced content of unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt.
Owner:CHEVRON ORONITE CO LLC

Light filters using yellow melanin and melanin-like oligomers and photochromic dyes

Selective fractionation and separation of melanin and use of fractionated or separated melanin in connection with light filters is disclosed. Further, light filters that use yellow melanin or melanin like materials prepared to have a yellow color and a melanin transmission spectrum in combination with a photochromic dye are disclosed. The yellow form of melanin has minimal impact on the perception of light intensity with transmission values greater than 80%. The combination allows for a single light filter suitable for both night driving and sunglass applications and which also preserve color perception.
Owner:PHOTOPROTECTIVE TECH

Field of modular multifunctional ligands

ActiveUS20070269904A1Wide pH stabilityRemain luminescentNanoinformaticsNanomedicineSolubilityQuantum dot
This invention pertains to a surface ligand; preparation of the ligand; colloidal nanoparticle, such as quantum dot bearing one or more of the ligand; and a bioconjugate characterized by a nanoparticle bearing one or more of the ligand conjugated to a biomolecule. The ligand is characterized by the presence of a first module containing atoms that can attach to an inorganic surface; a second module that imparts water-solubility to the ligand and to the inorganic surface that may be attached to the ligand; and a third module that contains a functional group that can, directly or indirectly, conjugate to a biomolecule. Order of the modules can be different and other modules and groups can be on the ligand. Preparation of the ligand includes the steps of reacting a compound having atoms that can attach to an inorganic surface with a water-solubilizing compound that imparts the property of water-solubility to the ligand and the inorganic surface to which it may be attached and purification thereof. Colloidal nanoparticle is characterized by an inorganic surface having attached to it one or more of the ligands. The colloidal bioconjugate is characterized by an inorganic surface having attached thereto one or more of the ligand wherein at least some of the ligand have a biomolecule conjugated thereto.
Owner:THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY

Process for producing melanin, melanin produced by the process, functional film containing the melanin, and process for producing the same

The present invention provides a melanin that is excellent in coloring a functional film, and in reproducibility and stability during storage, and a method for its production. Also, the invention provides a functional film containing a melanin and its method for production. Specifically, it provides a functional film containing a melanin of which the alteration is improved and which is excellent in the property for protecting eyes from ultraviolet rays, and in its method for production.The method for producing a melanin of the present invention, comprises, at least, under controlled conditions, a step for an oxidative reaction wherein a melanin precursor is continuously oxidized while the mole ratio of the melanin precursor relative to the oxidative agent is maintained at a constant ratio, and a step for precipitation wherein a melanin is precipitated by acidifying a reaction solution after the step for an oxidative reaction.
Owner:MGC FILSHEET CO LTD

Photo-destroyable quencher and associated photoresist composition, and device-forming method

A photo-destroyable quencher has the structurewherein X, n, and R1-R6 are defined herein, and at least one of R2, R3, R4, R5, and R6 is halogen, nitro, C1-12 fluorinated alkyl, cyano, aldehyde, C2-20 ester, C2-20 ketone, C1-20 sulfoxyl hydrocarbyl, C1-20 sulfonyl hydrocarbyl, or sulfonamide. The photo-destroyable quencher exhibits improved solution stability and reduced hygroscopic properties relative to triphenylsulfonium phenolate. A photoresist composition including an acid-sensitive polymer, a photoacid generator, and the photo-destroyable quencher exhibits increased contrast and / or critical dimension uniformity relative to corresponding photoresist compositions comparative photo-destroyable quenchers.
Owner:ROHM & HAAS ELECTRONICS MATERIALS LLC

Photonic crystal ink composition comprising light-absorbing nanoparticles and photonic crystal structure formed using the same

Disclosed are an ink composition including light-absorbing nanoparticles and a photonic crystal structure formed using the same. The ink composition may include inorganic particles; monomer; photoinitiator; and nanoparticles light-absorbing nanoparticles to provide the photonic crystal structure. As consequence, problems such as low color sharpness, which makes photonic crystals visible, and attaining high productivity may be eliminated. Moreover, white scattering can be reduced, and thus a distinctive color can be exhibited even when there is a difference between a reflection angle and an observation angle of light, thereby improving visibility.
Owner:HYUNDAI MOTOR CO LTD +2

Process for the preparation of activated polyethylene glycols

The present invention relates to a process for the preparation of activated polyethylene glycols, or PEG(NPC)2s, comprising reacting polyethylene glycol with an activator while in the presence of an aromatic nitrogen containing heterocyclic base. The process is carried out at temperatures ranging from about 20 to about 30° C., more preferably at room temperature, and under stoichiometric conditions.
Owner:RBA PHARMA

Method for preparing acrolein from glycerol or glycerine

The invention relates to a method for preparing acrolein from glycerol or glycerine, comprising dehydrating glycerol or glycerine in the presence of a catalyst consisting of at least a) a mixed oxide of zirconium and at least one metal, said metal being selected from niobium, tantalum and vanadium, b) a zirconium oxide and at least one metal oxide, the metal being selected from niobium, tantalum and vanadium, c) a silicon oxide and a mixed oxide of zirconium and at least one metal, the metal being selected from tungsten, cerium, manganese, niobium, tantalum, titanium, vanadium and silicon, d) a silicon oxide and a mixed oxide of zirconium and at least one metal, the metal being selected from tungsten, cerium, manganese, niobium, tantalum, vanadium and titanium, e) a titanium oxide and a mixed oxide of zirconium and at least one metal, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, titanium, vanadium and silicon, f) a titanium oxide and a mixed oxide or zirconium and at least one metal, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, titanium, vanadium and silicon. The method can be used for producing -3-(methylthio)propionic (MMP) aldehyde, 2-hydroxy-4-methylthiobutyronitrile (HMTBN), methionine and analogues thereof from acrolein.
Owner:AVEATIS ANIMAL NUTRITION SA +1

Non-linear optically active molecules, their synthesis, and use

In one aspect, the present invention provides a hyperpolarizable organic chromophore. The chromophore is a nonlinear optically active compound that includes a π-donor conjugated to a π-acceptor through a π-electron conjugated bridge. In other aspects of the invention, donor structures and acceptor structures are provided. In another aspect of the invention, a chromophore-containing polymer is provided. In one embodiment, the chromophore is physically incorporated into the polymer to provide a composite. In another embodiment, the chromophore is covalently bonded to the polymer, either as a side chain polymer or through crosslinking into the polymer. In other aspects, the present invention also provides a method for making the chromophore, a method for making the chromophore-containing polymer, and methods for using the chromophore and chromophore-containing polymer.
Owner:OPTIMER PHOTONICS

Abuse deterrent and Anti-dose dumping pharmaceutical salts useful for the treatment of attention deficit/hyperactivity disorder

InactiveUS20120028960A1BiocideNervous disorderAttention deficitsPhenethylamine derivative
A pharmaceutical composition comprising a drug substance consisting essentially of a pharmaceutically acceptable organic acid addition salt of an amine containing pharmaceutically active compound wherein the amine containing pharmaceutical active compound is selected from the group consisting of racemic or single isomer ritalinic acid or phenethylamine derivatives and the drug substance has a physical form selected from amorphous and polymorphic.
Owner:PISGAH LAB
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products