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序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
121	Process for the preparation of monoaminoanthraquinones	US540734	1983-10-11	US4549989A	1985-10-29	Paul Schmutz; Hans-Jorg Angliker
The invention relates to a process for the preparation of monoaminoanthraquinones of the formula ##STR1## wherein R is a non-ionic substituent and n is 0, 1, 2 or 3, by reduction of corresponding mononitroanthraquinones, which process comprises reacting said mononitroanthraquinones with formaldehyde, in the presence of a base and a catalyst, in an aqueous alcoholic solution.
122	Process for producing anthraquinone compounds	US539031	1983-10-04	US4519947A	1985-05-28	Makoto Hattori; Akihiro Taguma; Toshihiko Morimitsu; Akira Takeshita
A process for producing 1,4-diaminoanthraquinone-2,3-disulfonic acid or a salt thereof which comprises reacting a 1,4-diamino-2,3-dihalogenoanthraquinone with a sulfonating agent in an aqueous medium in the presence of at least one of a quaternary ammonium compound and a quaternary phosphonium compound and optionally, in the presence of an inert organic solvent is disclosed. A process for producing 1,4-diamino-2,3-dicyanoanthraquinone which comprises further reacting the thus obtained 1,4-diaminoanthraquinone-2,3-disulfonic acid or salt thereof with a cyanogenation agent is also disclosed.
123	Guest-host type liquid crystal composition and liquid crystal display device using the same	US195860	1980-10-10	US4495083A	1985-01-22	Shuji Imazeki; Akio Mukoh; Hirosada Morishita; Seiichi Imahori; Masaharu Kaneko; Hitoshi Ono
This invention relates to a guest-host type liquid crystal composition and a color liquid crystal display device in which said composition has been sealed. This invention provides a liquid crystal composition containing a specific anthraquinone dye as a pleochroic dye which, as the guest dye, has a degree of orderness of the alignment (order parameter) in the host liquid crystal in the range from 0.5 to 1, shows remarkable contrast between the colored state and the uncolored state, and is excellent in stability to light, heat, and the like. Further, this invention provides a color guest-host type liquid crystal display device in which said liquid crystal composition has been sealed.
124	Liquid-crystal mixture with a pleochroic anthraquinone dye, and method for producing such a dye	US301046	1981-09-10	US4491532A	1985-01-01	Gunther Scherowsky; Alexander Moller; Gerd Heppke; Burkhard Knippenberg
Liquid-crystal mixture with a pleochroic anthraquinone dye of the general formula ##STR1## with R.sup.1, R.sup.3, R.sup.4, R.sup.6 =H, OH, OCH.sub.3, NH.sub.2, NHCH.sub.3, NO.sub.2, characterized by the feature that ##STR2## (R.sup.7 =H, alkyl, cycloalkyl, alkoxy, alkylmercapto, amino, alkylamino, dialkylamino, nitro, cyano, halogen), ##STR3## COOR.sup.9, CH.sub.2 --OR.sup.9 (R.sup.8 =H, alkyl, cycloalkyl, alkoxy, alkylmercapto, amino, alkylamino, dialkylamino, nitro, cyano, halogen); R.sup.9 =H, alkyl and either R.sup.1, R.sup.4 =H, OH, NH.sub.2, NHCH.sub.3, NO.sub.2, NHCH.sub.3, NO.sub.2, OCH.sub.3, where at least one of the two radical is an NH.sub.2 or an NHCH.sub.3, R.sup.3 =R.sup.6 =H, or R.sup.3, R.sup.6 =H, OH, NH.sub.2, NHCH.sub.3, NO.sub.2, OCH.sub.3, where at least one of the two radicals is an NH.sub.2 or an NHCH.sub.3, R.sup.1 =R.sup.4 =H.
125	Educational board game	US314365	1981-10-23	US4445867A	1984-05-01	Ellie Berg; Joseph Yowfoo
An educational game comprising in combination: (a) a segmented disc having indicia in at least one of the segments; and (b) a spoke-like configuration pivotally secured to the disc adjacent the center thereof whereby selected segments of the disc can be aligned with the spoke-like configuration, the spoke-like configuration having a plurality of divided areas extending radially and outwardly thereof away from the disc, indicia in at least one of the areas corresponding to that on the segment and further common indicia on the segment and the area. The spoke like configuration and disc can be rotatably and removably mounted on opposite sides of an apertured container.
126	Process for the neutralization of basic reaction compositions	US866523	1978-01-03	US4318848A	1982-03-09	Hans-Heinz Molls; Willy Schiwy; Reinhold Hornle; Reinhard Nebeling
Chemical reaction products, obtained in an alkaline medium and which require the addition of a dispersing agent, are neutralized by addition of a free surface-active acid to which, after its preparation, basic agents have not been added or have only been added up to a pH value of 3.
127	Process for the manufacture of 1,4-diaminoanthraquinone-2-carboxylic acid	US33405	1979-04-26	US4243600A	1981-01-06	Athanassios Tzikas
A process for the manufacture of 1,4-diaminoanthraquinone-2-carboxylic acid, which comprises reacting 1-nitroanthraquinone-2-carboxylic acid or derivatives thereof with hydroxylamine or derivatives thereof, in alcohol/water mixtures at basic value pH values.
128	Liquid crystal compositions including pleochroic dye	US14541	1979-02-23	US4232950A	1980-11-11	Judith L. Benham
Liquid crystal compositions containing pleochroic dyes. The pleochroic dyes are substituted anthraquinones useful in guest-host combinations with nematic liquid crystal compositions having positive dielectric anisotropy. Electro-optic devices containing these guest-host combinations are employed.
129	Manufacture of 2-amino-3-bromoanthraquinone	US874249	1978-02-01	US4139543A	1979-02-13	Walter Schweckendiek; Heinrich Hiller; Reinhold Kohlhaupt
In a process for the manufacture of 2-amino-3-bromoanthraquinone by heating 2-aminoanthraquinone with bromine (in the molar ratio of 1:1) in sulfuric acid, while mixing, the improvement wherein crude 2-aminoanthraquinone, in sulfuric acid of from 60 to 90 percent strength by weight, which contains from 10 to 15% by weight of an alkanecarboxylic acid of 3 or 4 carbon atoms or a mixture of such acids, is heated with from 1 to 1.05 moles of bromine per mole of 2-aminoanthraquinone at from 130 to 150.degree. C. The 2-amino-3-bromoanthraquinone which is isolated may be used for the manufacture of dyes. It is at least as pure as that obtained from purified 2-aminoanthraquinone by the process of the prior art.
130	Disperse anthraquinone dyestuffs	US779952	1977-03-21	US4080369A	1978-03-21	Andrew Hunter Morris Renfrew; Stephen Bernard Bostock
1,4-Di(hydroxy- or amino-)-2-[alkoxycarbonylmethylene(oxy or amino)phenyl(oxy)]anthraquinones. Disperse dyestuffs for synthetic textile materials, especially aromatic polyesters.
131	Process for the manufacture of .alpha.,.alpha.'-aminonitroanthraquinones	US640372	1975-12-15	US4065478A	1977-12-27	Zdenek Seha
A process for the manufacture of .alpha.,.alpha.'-aminonitroanthraquinones, from .alpha.,.alpha.'-dinitroanthraquinones, wherein the .alpha.,.alpha.'-dinitroanthraquinones are reacted with ammonia in dipolar aprotic solvents which are inert to ammonia, the reaction substrates and reaction products.
132	Saponification of 1-acetamino-anthraquinone	US668164	1976-03-18	US3997573A	1976-12-14	Horst Jager; Erich Klauke
In the saponification of 1-acetamino-anthraquinone to produce the corresponding 1-amino-anthraquinone, the improvement which comprises effecting the saponification with aqueous alkali such as a hydroxide, oxide or carbonate of an alkali metal or an oxide or hydroxide of an alkaline earth metal. The saponification is effected in water, which may contain an organic solvent such as alcohol.
133	Process for the production of amino-anthraquinone	US385757	1973-08-06	US3966774A	1976-06-29	Paul Stoll; Istvan Toth
The present invention concerns a novel improvement in the catalytic hydrogenation of nitroanthraquinones to produce aminoanthraquinones, comprising over-hydrogenating the resulting aminoanthraquinone to the corresponding nuclear hydrogenated aminoanthraquinone and, after removal of the aminoanthraquinone, oxidising the remaining nuclear-hydrogenated aminoanthraquinone to aminoanthraquinone. Aminoanthraquinones are useful as intermediates in the production of anthraquinone dyestuffs.
134	Process for the preparation of pure 1-amino anthraquinone	US49973374	1974-08-22	US3907838A	1975-09-23	THIEM KARL-WERNER; AUGE WOLFGANG; NEEFF RUTGER
A 1-amino anthraquinone substantially free of diamino anthraquinone is prepared as follows: 1. Nitrating anthraquinone or a mixture which contains anthraquinone with concentrated nitric acid at a temperature of at least -20C, the mole ratio of nitric acid to anthraquinone being at least 4:1; 2. Stopping the reaction when the anthraquinone conversion is at least 50% by cooling the reaction mixture to below 30C and/or by adjusting the mole fraction of nitric acid to a value of 0.86 or less; 3. Precipitating 1-nitroanthraquinone by adjusting the mole ratio of nitric acid to a value of from 0.7 to 0.4 and/or by cooling the reaction mixture to a temperature of below 20*C; 4. Converting the precipitated 1-nitroanthraquinone into the corresponding 1-aminoanthraquinone; and 4. Subjecting the reaction product to vacuum distillation.
135	Production of 1-aminoanthraquinone-2-carboxamides	US41256273	1973-11-05	US3906012A	1975-09-16	SCHUHMACHER ALFRED; SCHWANTJE GERD
Production of amides of 1-aminoanthraquinone-2-carboxylic acid which bear hydrogen, cyclohexylamino, chloro, bromo or nitro as substituent in the 4-position by reaction of 1,2-dihydro-7,8diphthaloyl-3,1,4H-benzoxazone-4: IN WHICH R2 is H, Cl, Br, NH-cyclohexyl or NO2, with an aliphatic or cycloaliphatic amine of one to eight carbon atoms in the molar ratio 1:1. Some of the amides are disperse dyes but particularly they are intermediates for the production of disperse dyes.
136	Process for the production of anthraquinone derivatives chlorinated in alpha-positions	US15073371	1971-06-07	US3821262A	1974-06-28	SCHOENAUBER W; STEINER K
A process for the production of anthraquinone derivatives which are substituted in the 1,4-positions by amino and/or hydroxyl groups and are Alpha -chlorinated by chlorinating these derivatives in the form of the boric acid or boron fluoride complex compounds in the presence of halogenation catalysts, which consists in using for chlorination a mixture of oleum and chlorosulphonic acid or thionyl chloride.
137	Anthraquinoid dyestuffs	US3759958D	1971-11-16	US3759958A	1973-09-18	DELLA CASA A; PETER R; ANGLIKER H
An anthraquinoid dyestuff which comprises at least one residue of an anthraquinoid disperse dyestuff and at least one residue of a disperse dyestuff of the styryl series.
138	Anthraquinone dyes	US3671536D	1970-03-17	US3671536A	1972-06-20	PATSCH MANFRED; EILINGSFELD HEINZ
1,4-DIAMINOANTHRAQUINONES BEARING IN POSITION 2 A 1,2,4OXADIAZOLE GROUP WHICH IS SUBSTITUTED IN POSITION 3 BY AN AROMATIC OR ALIPHATIC RADICAL. These anthraquinone derivatives are valuable blue disperse dyes for use in dyeing and printing synthetic textile materials.
139	Process for the production of sulfonated primary aminoanthraquinone by conversion of an n-cyclohexyl-aminoanthraquinone	US3585219D	1967-02-13	US3585219A	1971-06-15	BRAUN WILLY; RUSKE MANFRED
THIS SPECIFICATION DISCLOSES THE PRODUCTION OF SULFONATED AMINOANTHRAQUINONES BY THE ACTION OF OLEUM ON N-CYCLOHEXYLAMINOANTHROANTHRAQUINONES AT A TEMPERATURE OF FROM 50 TO 160*C. AMINOANTHRAQUINONES ARE VALUABLE INTERMEDIATES FOR THE PRODUCTION OF DYESTUFFS.
140	Process for the production of anthraquinone dyestuffs	US21418262	1962-08-02	US3228953A	1966-01-11	RUTGER NEEFF

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