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    Production of modified phenol-formaldehyde condensation products
    11.
    发明专利
    Production of modified phenol-formaldehyde condensation products 未知

    公开(公告)号：GB1033700A

    公开(公告)日：1966-06-22

    申请号：GB2133765

    申请日：1965-05-20

    Applicant: BASF AG

    Inventor： HERTEL OTTO ,  HENSEL WALTER

    IPC: C08G14/06 ,  C08G16/02

    Abstract: Alkali-soluble condensation products are produced by a process wherein (a) at least one phenol and/or naphthol is reacted with (b) formaldehyde or a formaldehyde donor in an alkaline, acid or neutral aqueous medium and the reaction product obtained is reacted in any sequence in an acid, alkaline or neutral aqueous medium with (c) at least one compound which contained at least once the grouping in which R1 denotes a hydrogen atom, a hydroxy-methyl group or an alkoxymethyl group having up to 5 carbon atoms in the alkoxy radical and R2 denotes a hydrogen atom, a hydroxymethyl group, an alkoxymethyl group having up to 5 carbon atoms in the alkoxy radical, or an alkyl group having up to 5 carbon atoms, and if desired, with further formaldehyde, and (d) at least one mononuclear aromatic carboxylic or sulphonic acid which may contain hydroxyl or amino groups, aryloxy fatty acids or aliphatic polycarboxylic acids which may contain hydroxyl groups. The reactions are preferably carried out at temperatures between 50 DEG and 100 DEG C. Reactions in an alkaline medium are suitably carried out in sodium or potassium hydroxide, ammonia, ethylamine, diethylamine, triethylamine, diethanolamine or triethanolamine and reactions in an acid medium are suitably carried out in hydrochloric or sulphuric acids. Examples describe the reaction of p-tertiary butyl phenol with formaldehyde or paraformaldehyde, the reaction product of which is further reacted with salicyclic acid and (1) trimethylolmelamine, (2) hexamethylolmelamine, (3) melamine, (4) triaminomelamine, (5) methylmelamine, (6) dicyanodiamide, (9) N-oxymethyl-N1-cyanoguanidine, (10) amoneline, (11) guanine or amonelide. The condensation products above are suitable for use as laking agents for basis dyes. Examples describe compositions prepared from the condensation products above, a copolymer of styrene and a maleic ester and a basic dye which may be an auramine or rhodamine dye in a solvent which is a mixture of ethanol and ethylene glycolmonoethyl ether.

    Dyeing polyolefine materials
    17.
    发明专利
    Dyeing polyolefine materials 未知

    公开(公告)号：GB940495A

    公开(公告)日：1963-10-30

    申请号：GB889962

    申请日：1962-03-08

    Applicant: BASF AG

    Inventor： HENSEL WALTER ,  ROSENKRANZ MAGNUS

    IPC: D06P1/22

    Abstract: Polyolefin materials are dyed by applying from an aqueous bath a vat dye in finely divided form and fixing by the action of heat. The vat dyes should be finely dispersed in the dyebath having a particle size 0.1-3 microns, advantageously with the aid of dispensing agents such as naphthalene sulphonic acid/formaldehyde condensates, sodium H-benzylsulphanitate and sulphite cellulose waste liquor. The dyes may be applied in the form of their vat acids which are prepared by reducing the vat dye conventionally to the leuco dye salts in an alkaline solution containing sodium dithionite, salts of hydroxyalkane-sulphinic acids or their reaction products with ammonia or amines, thiourea dioxide, potassium borohydride or glucose and then liberating the vat acids by neutralising or weakly acidifying with, for example, acetic acid preferably in the presence of dispersing agents of the above mentioned type. The dyes may be applied by impregnation or padding at 40-80 DEG C. and then preferably dried. Fixation is achieved at a temperature between 100 DEG C. and the softening point of the material, heating by means of infrared radiation, hot air, contact with heated rollers or baths of molten metal. If the vat dyes have been fixed on the material in unreduced form finishing may be achieved by rinsing, soaping and drying; otherwise an oxidative treatment with atmospheric oxygen, hydrogen peroxide, alkali metal perborates, persulphates or dichromates, if desired in a hot aqueous bath, is introduced. In the case of the dye being fixed in the form of its vat acid it is preferred that it is first converted to the leuco dye salt with an alkaline reducing bath and then re-oxidised and finished as above. Examples of dyeing fabrics of polypropylene fibres are given. Specification 906,899 is referred to.

    Water-soluble azo dyestuffs containing ethene sulphonic acid amide groups
    19.
    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.

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