中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

33 records (took 0.023 seconds)

    Anthraquinone dyes and their production
    2.
    发明专利
    Anthraquinone dyes and their production 未知

    公开(公告)号：GB1027968A

    公开(公告)日：1966-05-04

    申请号：GB243665

    申请日：1965-01-20

    Applicant: BASF AG

    Inventor： GRASER FRITZ ,  WEISER DIETER

    IPC: C09B1/62

    Abstract: The invention comprises anthraquinone dyestuffs of the general formula in which Y is hydrogen or a group where in X is -0-, -S- or -NR-; Y1 is hydrogen, hydroxyl, amino which may be substituted, or when Y is hydrogen, Y1 is a group as defined above; R is hydrogen, an aliphatic radical which may be substituted, an aromatic group which may be substituted, or an acyl group, and the rings A, B and C may bear substituent groups othr than sulphonic acid groups. They may be prepared by reacting a compound of general formula wherein Z is a hydrogen atom or a radical which can be exchanged for a group as defined above and Z1 is hydrogen, hydroxy, amino, substituted amino or when Z is hydrogen Z1 is a group as defined above with a compound wherein C and X are as defined above in presence of a solvent and an acid binding agent. Any sulphonic acid groups in rings A and B are eliminated by reaction with sodium dithionite and sodium carbonate in aqueous solution. Specified solvents are C1-C4 alcohols, acetone and methylethyl ketone, 2-methoxyethanol and 2 ethoxyethanol. Examples of acid binding agents are sodium and potassium hydroxides, carbonates and bicarbonates, calcium and magnesium hydroxides, carbonates, trisodium phosphate and alkali metal acetates. Many examples are given and among the compounds claimed per se are (i) (ii) (iii) (iv) (v)

    Production of ketoxime hydrochlorides
    5.
    发明专利
    Production of ketoxime hydrochlorides 未知

    公开(公告)号：GB939149A

    公开(公告)日：1963-10-09

    申请号：GB239462

    申请日：1962-01-23

    Applicant: BASF AG

    Inventor： METZGER HORST ,  WEISER DIETER

    IPC: C10G11/18

    Abstract: In a process for the production of ketoxime hydrochlorides by the action of nitrosating agents on aliphatic, araliphatic or cycloaliphatic hydrocarbons in the presence of actinic light, the light source is coated with an uninterrupted coherent layer of a substance in a solid form deposited by crystallisation or sublimation, this substance being the hydrocarbon reactant or an inert organic compound soluble in the reaction mixture. This coating on the light source is said to prevent the formation of a yellow-brown coloured coating upon the light source, thus preventing any decrease in the transmission of light from the source. The thickness of the crystal coating may be from 0.1 to 1.0 cm. The temperature of the reaction is maintained in the range of -30 DEG to +40 DEG C. and a temperature gradient is maintained between the light source and the reaction medium such that the crystal coating is preserved throughout the reaction. A suitable light source is an 80 watt mercury lamp providing light of wave length 200 mm to 600mm . Nitrosating agents specified are nitrosyl chloride, nitrogen monoxide and chloride, alkyl nitrites and hydrochloric acid, nitrous gases and hydrochloric acid, and nitrosylsulphuric acid and hydrochloric acid. Hydrocarbons specified as starting materials are n-hexane, n-heptane, toluene, ethylbenzene, xylenes, cyclopentane, fluorene, cyclohexane, decahydronaphthalene, cycloheptane, cyclooctane and cyclododecane; and they may be dissolved in inert solvents such as benzene, carbon tetrachloride, chloroform or monochlorobenzene. Inert organic compounds suitable for the crystal coating are naphthalene, anthracene or hexachlorethane. Four examples are given, illustrating the difference in yield and purity of ketoxime hydrochloride obtained when the reaction is carried out with and without the crystal coating on the light source. In Examples 1, 2 and 3, the crystal coatings are of cyclohexane, cyclooctane and cyclododecane respectively, and, in Example 4, a crystal coating of naphthalene is used when treating decahydronaphthalene with nitrosating agents.

    Anthraquinone dyes and their production
    6.
    发明专利
    Anthraquinone dyes and their production 未知

    公开(公告)号：GB1139310A

    公开(公告)日：1969-01-08

    申请号：GB2002566

    申请日：1966-05-06

    Applicant: BASF AG

    Inventor： WEISER DIETER ,  GRASER FRITZ

    IPC: C09B1/54

    Abstract: 1,139,310. Anthraquinone dyes. BADISCHE ANILIN- & SODA-FABRIK A.G. 6 May. 1966 [8 May, 1965], No. 20025/66. Heading C4P. The invention comprises anthraquinone dyes of the formula wherein Ar represents a substituted or unsubstituted aryl radical, the radicals R 1 and R 2 represent hydrogen atoms and/or alkyl, aralkyl, cycloalkyl, aryl or heterocyclic radicals which may bear OH, NH 2 , alkoxy or substituted amino groups, or together with the N atom form a heterocyclic ring, and n represents an integer from 1 to 4; with the proviso that groups in which R 1 represents H or a hydroxyalkyl group and R 2 represents H, C 1 to C 6 alkyl or hydroxyalkyl are excluded. They may be obtained by treating an anthraquinone compound of the formula wherein Ar 1 represents an unsubstituted or substituted aryl radical with chlorosulphonic acid or oleum and a halogenating agent and then treating the sulphochloride compound with at least a stoichiometric quantity of a compound of the formula Specified aryl radicals are phenyl, naphthyl and diphenyl radicals. The aryl radicals may bear halogen atoms, alkyl, alkoxy, aryloxy, acyl, hydroxy or acid groups. Examples are given for the production of the dyes. They are useful for dyeing or printing textile materials, and other natural or synthetic materials bright violet shades.

    Anthraquinone dye mixtures and their preparation
    7.
    发明专利
    Anthraquinone dye mixtures and their preparation 未知

    公开(公告)号：GB1070118A

    公开(公告)日：1967-05-24

    申请号：GB2002666

    申请日：1966-05-06

    Applicant: BASF AG

    Inventor： WEISER DIETER ,  GRASER FRITZ

    IPC: C09B1/54

    Abstract: The invention comprises a dye mixture having a content of 2 to 98 mole per cent of an anthraquinone dye having the formula wherein Ar represents a substituted or unsubstituted aryl radical, the radicals R1 and R2 represent hydrogen atoms and/or alkyl, aralkyl cycloalkyl, aryl or heterocyclic radicals which may bear OH, NH2, alkoxy or substituted amino groups, or together with the N atom form a heterocyclic ring, n represents an integer from 1 to 4 and R represents a halogen atom, and 98 to 2 mole per cent of an anthraquinone dye having the general Formula I in which R represents the radical The mixtures may be obtained by mixing the individual dyes or by treating an appropriate mixture of compounds of the formulae wherein Ar1 represents a substituted or unsubstituted aryl radical, with chlorosulphonic acid or oleum and a halogenating agent and then treating the sulphochloride compounds with at least a stoichiometric quantity of a compound of the formula Specified aryl radicals are pheny, naphthyl and diphenyl radicals. The aryl radicals may bear halogen atoms, alkyl, alkoxy, aryloxy, carboxylic acyl, hydroxy and acid groups. Examples are given for the production of the dyestuff mixtures. They are useful for dyeing or printing textile materials, and other natural or synthetic materials bright violet shades.

    Anthraquinone dyes and their production
    10.
    发明专利
    Anthraquinone dyes and their production 未知

    公开(公告)号：GB1045360A

    公开(公告)日：1966-10-12

    申请号：GB5046364

    申请日：1964-12-11

    Applicant: BASF AG

    Inventor： GRASER FRITZ ,  WEISER DIETER

    IPC: C09B1/28 ,  C09B1/30

    Abstract: The invention comprises anthraquinone dyes of the formula wherein X is a linear or branched 1-5 C aliphatic group, Y is -O-, -S-, -SO2-or -NR- (R being H or an aliphatic or aromatic radical), Z is a linear or branched 1-6 C possibly substituted aliphatic group or a single bond. A is an unsubstituted or substituted aromatic group, preferably consisting of one or two six-membered rings, m is 1, 2 or 3, n is 1 or 2, R1 and R2 are each H or unsubstituted or substituted alkyl, aralkyl, aryl, cycloalkyl or heterocyclic radicals or together with the N atom form a heterocylic ring and wherein the anthraquinone radical may bear substituents. The dyes may be prepared by converting suitable anthraquinones with chloro-sulphonic acid to sulphochlorides of the formula and then allowing NH3 or a 10 or 10 amine to. act upon the sulphochlorides. The dyes are suitable for colouring fibres or films of synthetic polyamides, polyurethanes, polyesters, wool, silk, cellulose acetates, natural and regenerated cellolose or may be employed as pigments. Examples are given.ALSO:Materials of cotton or polyamide are dyed by the process of Specification 923, 162 using dyes of the formula (I) where X is a linear or branched 1-5C aliphatic, Y is -O-, -S-, -SO2- or -NR- (R being H, aliphatic or aromatic), Z is linear branched 1-6C possibly substituted aliphatic or a single bond, A is possibly substituted aromatic, m is 1, 2 or 3, n is 1 or 2, R1 and R2 are each H or possibly substituted alkyl, aralkyl, aryl, cycloalkyl or heterocyclic or together with the N form a heterocyclic ring and wherein the anthraquinone radical may bear substituents.

Patent Agency Ranking