中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

16 records (took 0.021 seconds)

    2.
    发明专利
    未知

    公开(公告)号：FR1392807A

    公开(公告)日：1965-03-19

    申请号：FR968220

    申请日：1964-03-21

    Applicant: BASF AG

    Inventor： EBEL FRIEDRICH ,  GULBINS KLAUS ,  HAHN ERWIN ,  LANGE GUENTER ,  SCHUBERT RUDOLF ,  WILHELM HANS ,  WOLF HANS ,  WUERTELE LOTHAR

    IPC: D06P3/32

    Abstract: Leather is simultaneously dyed and finished using a coloured polymer in which the dye is bound to the polymer by a covalent bond. The polymer may be obtained by copolymerizing a dye bearing at least one polymerizable olefinically unsaturated group with one or more polymerizable monomers (many listed) or the polymer may be one on to which a copolymerizable dye has been grafted or the polymer may be attached to the dye by way of reactive groups both on the polymer and the dye. The polymers may be in solution or dispersion, preferably aqueous dispersion. The coloured polymers may contain reactive groups, e.g. by using N-methylolacryl- or methacrylamide as a comonomer, through which cross-linking may be effected. The coloured polymers may be applied by brushing, dipping or spraying or in a drum. The so-treated leather may afterwards be glazed or plated. Examples are given. Specifications 877,402, 914,282, 946,472, 964,757 and 965,627 are referred to.

    Improvements in the purification of crude terephthalic acid
    5.
    发明专利
    Improvements in the purification of crude terephthalic acid 未知

    公开(公告)号：GB849189A

    公开(公告)日：1960-09-21

    申请号：GB1010959

    申请日：1959-03-24

    Applicant: BASF AG

    Inventor： BILLE HEINZ ,  EBEL FRIEDRICH ,  TRIESCHMANN HANS-GEORG ,  WEIDINGER HANS

    Abstract: Crude terephthalic acid is purified by recrystallisation from a N-alkyl-pyrrolidone. The process is particularly suitable for the purification of terephthalic acid obtained by oxidation, e.g., with nitric acid, of dialkyl benzenes, e.g., xylene and p-diisopropyl benzene or dialkyl benzenes halogenated in the side chains. Examples are furnished in which terephthalic acid containing nitrogenous impurities obtained by nitric acid oxidation of p-diisopropyl benzene are recrystallised from N-methyl and N-butyl-pyrrolidones. Other pyrrolidones specified include N-ethyl and N-propyl pyrrolidones.

    Improvements in the production of vat dyestuffs of the anthraquinone series
    7.
    发明专利
    Improvements in the production of vat dyestuffs of the anthraquinone series 未知

    公开(公告)号：GB747454A

    公开(公告)日：1956-04-04

    申请号：GB1400354

    申请日：1954-05-13

    Applicant: BASF AG

    Inventor： EBEL FRIEDRICH ,  RUPP WALTER ,  KELLER WALTER

    IPC: C09B1/467

    Abstract: The invention comprises dyes of the formula:- where R is phenyl, which may be substituted by one or two chlorine atoms, a methyl group, or a methoxy group. They are made by condensing 2 mols of 1.4-diamino - 2 - acetyl - anthraquinone with 1 mol of a 2 - phenyl - 4.6 - dichlor - 1.3.5 - triazine which may contain in the phenyl radical one or two chlorine atoms, a methyl group or a methoxy group. The products dye natural and regenerated cellulose and nylon blue shades. In examples, 2 mols of 1.4 - diamino - 2 - acetyl anthraquinone are condensed in nitrobenzene with 1 mol of 2-phenyl - 4.6 - dichlor - 1.3.5 - triazine or its 41-chlor, 31-methyl, 41-methyl, 21, 31 or 41-methoxy, or 21.41 - dichlor - derivatives. Specification 719,282 is referred to.

    Water-soluble azo dyestuffs containing ethene sulphonic acid amide groups
    10.
    发明专利
    Water-soluble azo dyestuffs containing ethene sulphonic acid amide groups 未知

    公开(公告)号：GB875946A

    公开(公告)日：1961-08-23

    申请号：GB3424159

    申请日：1959-10-09

    Applicant: BASF AG

    Inventor： LANGE GUENTER ,  EBEL FRIEDRICH ,  SCHROEDEL RUDOLF ,  HENSEL WALTER

    IPC: C09B62/527

    Abstract: Compounds containing ethenesulphonamide groups are prepared and used in the preparation of azo dyestuffs (see Group IV(c)). Ethenesulphonyl - (3-aminophenyl)-amide is prepared by the reduction of ethensulphonyl-(3-nitrophenyl)-amide (Specification 686,061, Example 5) in aqueous calcium chloride with iron powder. 1 - ethenesulphonamido - 8 - naphthol-3:6-disulphonic acid sodium salt is prepared in solution by treating an aqueous solution of 1-amino-8-naphthol-3:6-disulphonic acid sodium salt with a solution of ethenesulphonyl chloride in acetone. 1-(31-ethenesulphonamidophenyl)-3-methyl-5-pyrazolone is prepared by reacting 1-(31-aminophenyl) - 3 - methyl-5-pyrazolone with carbyl sulphate in 1 : 2-dichloroethane. 4 - amino-41-ethenesulphonylamido-diphenylsulphide is prepared by reacting 4-nitro-1-amino-diphenyl sulphide with carbyl sulphate in 1 : 2-dichloroethane and reducing the nitrocompound with iron powder in aqueous calcium chloride solution. Specification 686,061 is referred to.ALSO:The invention comprises azo dyestuffs containing at least one ethene-sulphonamide group and at least one water-solubilizing group. The dyestuffs may be prepared by the usual diazotization and coupling reactions using suitable components or by acylation of aminoazo dyestuffs with agents which introduce an ethenesulphonyl radical, such as ethene sulphonic acid chloride and bromide and carbyl sulphate. The dyes may be used to dye cellulose, wool, leather, silk and linear polyamides in many shades, the dyeings being fixed by treatment with alkalis and heating. Many examples are described, the components specified including ethenesulphonyl-(3-or 4-aminophenyl)-amide, 4-amino- 41-ethenesulphonyl amido-diphenyl-sulphide or-sulphone or -ketone or -amine and diamino-diphenylmethane; 1-(phenyl or sulphophenyl)-5-pyrazolones, naphthol-sulphonic acids, aminonaphthol-sulphonic acids and N-acyl derivatives thereof, 8-hydroxyquinoline- 4-sulphonic acid and 2-ethenesulphonylamido- 5-naphthol- 7-sulphonic acid. Specifications 686,061, 712,037, 776,265 and 779,781 are referred to.

Patent Agency Ranking