|
Match
|
Document |
Document Title |
|
|
7351451 |
Anthraquinone compound, liquid crystal composition, cell and display device employing the same
A liquid crystal composition comprising at least one liquid crystal compound and at least one anthraquinone compound represented by formula (1) below: Formula (1) (wherein R 2 to R 8 each...
|
|
|
7141685 |
Thermally stable, anthraquinone colorants containing copolymerizable vinyl groups
Disclosed are thermally-stable, anthraquinone colorant compounds (dyes) which contain one or more vinyl groups which render the compounds copolymerizable with reactive vinyl monomers to produce...
|
|
|
6620858 |
Colorants containing copolymerizable vinyl groups and sulfonamide linkages
Disclosed are thermally-stable, colored, photopolymerizable compounds containing a vinyl group which are capable of being copolymerized with reactive vinyl monomers to produce colored compositions...
|
|
|
6033742 |
Liquid crystal display device
A liquid crystal display device comprises, a pair of substrates having an electrode on a surface thereof, and a liquid crystal layer containing a liquid crystal and a dichroic dye, wherein the...
|
|
|
5679808 |
Tertiary non-linear optical material
The present invention discloses a tertiary non-linear optical material comprising a quinone derivative expressed by any one of the general formulas: ##STR1## wherein R 1 , R 2 , R 3 , R 4 , R 5 ...
|
|
|
5581000 |
Sulfonic acid-substituted anthrahydroquinone alkylammonium salts
Hydrogen peroxide is produced by oxidizing alkylammonium salts of sulfonic acid-substituted anthrahydroquinones. As said salts are highly soluble in protic polar solvents such as water and lower...
|
|
|
5493036 |
Fibre-reactive anthraquinone dyes, their preparation and the use thereof
The invention relates to fibre-reactive anthraquinone dyes of formula ##STR1## wherein R 1 , R 2 , B, U, R and n are as defined in claim 1. The anthraquinone dyes of formula (1) are suitable for...
|
|
|
5412123 |
Anthraquinone and anthracene derivatives as inhibitors of the cell-adhesion molecules of the immune system
Derivatives of anthraquinone and anthracene are synthesized and formulated into pharmaceutical formulations. When the formulations are administered the derivatives act as ligands binding to an...
|
|
|
5237059 |
Compounds capable of generating an acid by light irradiation
A compound capable of generating an acid by light irradiation selected from the group consisting of oxime sulfonic acid esters of formula (I): ##STR1## wherein R 1 is an alkyl group, each of R 2 ...
|
|
|
5030387 |
Organic conductive complex
An organic conductive complex comprising an electron donor and an electron acceptor, the electron donor being an anthraquinone derivative represented by formula (1): ##STR1## wherein X 1 , X 2 , X...
|
|
|
4985171 |
Anthraquinone type compound and liquid crystal composition containing such compound
An anthraquinone type compound which is represented by the following general formula (I) and which exhibits yellow to orange-colored hue; and a composition for liquid crystal display element...
|
|
|
4942251 |
Process for producing α-anthraquinonesulfonic acids and recovering the catalyst used therein
The present invention concern a process for producing α-anthraquinonesulfonic acids in the presence of a metal catalyst in oleum and recovering the metal catalyst which is solubilized in the...
|
|
|
4921959 |
Anthraquinone compounds and polarizing film containing the same
An anthraquinone compound represented by formula: ##STR1## wherein R and X are as defined in the specification, and a polarizing film containing the same. The anthraquinone compound exhibits...
|
|
|
4711743 |
Process for producing anthraquinone-1-sulphonic acid by sulphonation with palladium catalyst
A process for the production of anthraquinone-1-sulphonic acid by sulphonating anthraquinone with a sulphonating agent in the presence of palladium catalyst in a solvent, is characterized in that...
|
|
|
4596666 |
Aryl-mercapto anthraquinone dyestuffs, their preparation and use and dichroic material containing aryl-mercapto anthraquinone dyestuffs
Anthraquinone dyestuffs of the formula ##STR1## in which R 1 represents alkyl, aralkyl, --CO--X-alkyl, --CO-- X-aralkyl, --CO--X-aryl, --O-alkyl, --O-aralkyl, --O-- aryl, --CN, --NO 2 , --CF 3 ,...
|
|
|
4506957 |
Liquid crystal materials containing pleochroic anthraquinone dyes
A material suitable for a guest-host liquid crystal device comprises a solution of a liquid crystal material and a pleochroic dye characterized in that the dye comprises at least one anthraquinone...
|
|
|
4464282 |
Organic materials
A material suitable for a guest-host liquid crystal device comprises a solution of a liquid crystal material and a pleochroic dye wherein the pleochroic dye comprises at least one anthraquinone...
|
|
|
4461911 |
Process for the preparation of S-arylthioglycolic acids
Process for the preparation of S-arylthioglycolic acids of the formula ##STR1## in which A designates a benzene ring, which can be substituted by 1, 2, 3, 4 or 5 substituents from the series...
|
|
|
4455253 |
Pleochroic anthraquinone dyes
An anthraquinone dye free from water-solubilizing and ionic substituents of the general formula: ##STR1## wherein Q is NH 2 , OH, alkyl, aryl, NO 2 or halo; n is 0 to 4; each X independently...
|
|
|
4405211 |
Liquid crystal compositions with pleochroic anthraquinone dyes
A material suitable for a guest-host liquid crystal device comprises a solution of a liquid crystal material and a pleochroic dye wherein the pleochroic dye comprises at least one compound having a...
|
|
|
4342700 |
Oxidation-reduction reagents for a wet desulfurization process and a process for preparing same
An oxidation-reducing reagent for a wet desulfurization process, which comprises (a) one or more compounds selected from the group consisting of salts of substituted anthraquinonesulfonic acids of...
|
|
|
4226783 |
α-Chlorination process
A process for α-chlorination of side chains of electronegatively substituted aromatic compounds with dichlorine monoxide.
|
|
|
4176113 |
Process for dyeing polyesters in the melt
Use of anthraquinone derivatives of the formula ##STR1## wherein X is --NH-- or --S--, one Y is --NHCOR, R being an alkyl, aryl or heterocyclic residue, the other Y are hydrogen, Z is halogen, and...
|
|
|
4128396 |
Process for the improvement of dyeing properties of pigments of the anilino and arylmercapto anthraquinone series
Process for the improvement of dyeing properties of pigments of the anilino and arylmercapto anthraquinone series for bulk dyeing linear polyesters by halogenation of unhalogenated or lower...
|
|
|
4124606 |
Sulfonation of anthraquinone in sulfur dioxide solvent
Sulfonation of anthraquinone by a sulfur trioxide component including SO 3 or oleum in a liquid sulfur dioxide solvent. When a mercury catalyst is used to give alpha anthraquinone sulfonate...
|
|
|
4021455 |
Process for the manufacture of anthraquinonesulphonic acid
Process for the manufacture of practically mercury-free anthraquinonesulphonic acids, characterized in that anthraquinone is sulphonated with sulphuric acid containing SO 3 in the presence of...
|
|
|
4013687 |
Anthraquinone dispersing agents
Dyestuffs of the formulae D--Z--O--OC--X--O) y H] n and D--Z--O--OC--X--O) (y -1 ) COT] n wherein D is the radical of an anthraquinone dyestuff which is attached to Z through a carbon atom of...
|
|
|
4012454 |
Iodination process
A decarboxylation process for substituting iodine atoms for silver carboxylate radicals which comprises reacting the silver salts of carboxylic acids with iodine under decarboxylation conditions.
|
|
|
4003923 |
Preparation of quinones
Quinones are prepared by the catalytic oxidation of aromatic compounds selected from the group consisting of acenaphthene, fused ring structures having 3 to 5 six-membered rings and sulfonic acid...
|
|
|
3975410 |
Process for the manufacture of halogen-containing anthraquinoidal compounds, their use and new halogen-containing anthraquinoidal compounds
Process for the manufacture of halogen-containing anthraquinoidal compounds being useful for bulk dyeing high molecular organic compounds and having the formula ##SPC1## Wherein A is an...
|
|
|
3929843 |
Dihydroxythiophenoxyanthraquinones
Dihydroxythiophenoxyanthraquinone dyes are made by the reaction of 1-amino-4-bromoanthraquinone-2-sulfonic acid ("bromaminic acid") with an arylthiol in a lower alkanol, followed by the hydrolysis...
|
|
|
3925347 |
Processes of synthesizing AZO compounds
A method for preparing compounds of the formula: ##SPC1## Wherein: A is an alkyl radical of at least nine carbon atoms D is a monoazo, disazo or anthraquinone dye moiety; X is alkyl, alkoxy,...
|
|
|
3873581 |
Process for reducing the level of contaminating mercury in aqueous solutions
The mercury content of an aqueous solution contaminated by mercury can be reduced by treating the solution with a mercury-reactive factor and an adsorbent such as activated charcoal.
|
|
|
3700700 |
PROCESS FOR THE MANUFACTURE OF AMINOANTHRAQUINONES
Process for the preparation of anthraquinones containing a primary amino group by heating the corresponding aminoanthraquinones containing a secondary or tertiary amino group in an organic solvent.
|
|
|
3408345 |
Trisulphonated anthraquinone reactive dyestuffs substituted in the 1-and 4-positionsby amine groups
|
|
|
3386991 |
Process for prducing organic nitrogen oxides to amines using iron and active carbon in a solvent
|
|
|
3370073 |
Oxidation of olefinically unsaturated hydrocarbons to carbonyl compounds
|
|
|
3365499 |
Oxidation of olefins to ketones
|
|
|
3287348 |
S-alkyl-2-haloethylsulfonium dyestuffs
|
|
|
3273955 |
Process for reduction of vat anthraquinone dyestuffs
|
|
|
3265670 |
Curing ethylene-propylene copolymers
|
|
|
3252969 |
p-dihydroxyphenyl sulfamyl azo and anthraquinone dyestuffs
|
|
|
3164436 |
Process for dyeing or printing hydrophobic fibrous materials
|
|
|
3152169 |
Process for the production of sulfurcontaining alkali salts
|
|
|
3152110 |
Isothiuronium salts of bromohydrin sulfide dyestuffs
|
|
|
3152108 |
Iothiuronium salts of 2-haloethyl sulfide dyestuffs
|
|
|
3088790 |
Dyeings and prints possessing fastness to wet processing and their manufacture on cellulose material
|
|
|
3079404 |
Process for manufacturing alpha-anthraquinone disulfonate containing low amounts of mercury
|
|
|
3018154 |
Colored aromatic polyester material and process of making same
|
|
|
2999869 |
Alkali metal salts of alpha,alpha'-anthraquinone disulfonates
|