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    Dyeing of hydrophobic textile materials
    193.
    发明专利
    Dyeing of hydrophobic textile materials 未知

    公开(公告)号：GB1081439A

    公开(公告)日：1967-08-31

    申请号：GB5152064

    申请日：1964-12-18

    Applicant: BASF AG

    Inventor： BAUMANN HANS ,  FEDERKIEL WILHELM ,  RICHTER PETER

    IPC: C09B43/08 ,  D06P1/12 ,  D06P1/32 ,  D06P3/56

    Abstract: Textile materials of polyacrylonitrile, polyamides, polyurethanes, aromatic polyesters or cellulose acetate and triacetate are dyed by the oxidation of an aromatic amine in a process wherein the amine is prepared direct in the treatment liquor by reductive clearage of a water-soluble azo dye whose aromatic coupling component is free from -SO3H groups, and an oxidising agent is allowed to act on the treated textile by conventional methods. The azo dye may be of the formula:- wherein A is a radical of the benzene or naphthalene series B is a phenylene or naphthylene, R1 is H, -OH or alkoxy, R2 is H, alkyl, -COOH, -OH or alkoxy and n is 1 or 2, but may also have the formula:- wherein the group N=C- is a heterocyclic radical R is an aliphatic or aromatic radical and X is an anion. The specified reducing agents are neutral or acid salts of hydrogen sulphide, sulphurous acid or dithionous acid or compounds which split these off as well as glucose, hydrazine or arylhydrazines. The reductive clearage may take place in the presence of a dispersing agent, e.g. a naphthalene sulphonic acid/formaldehyde, and/or carriers at 60-140 DEG C at pH 5-10. The specified oxidising agents are sodium hypochlorite, quinones, quinonimines and quinonimide chlorides. Examples are given and black dyeings are obtained.

    Improving the resistance to gas-fume fading of shaped articles of polyurethanes
    197.
    发明专利
    Improving the resistance to gas-fume fading of shaped articles of polyurethanes 未知

    公开(公告)号：GB1028806A

    公开(公告)日：1966-05-11

    申请号：GB310864

    申请日：1964-01-24

    Applicant: BASF AG

    Inventor： FEDERKIEL WILHELM ,  GEHM ROBERT ,  KUNDE JOACHIM ,  MAIER KARL

    IPC: C08K5/00 ,  D06M13/322 ,  D06M13/342 ,  D06M13/345 ,  D06M13/425

    Abstract: Polyurethanes of M.W. at least 104 and having no isocyanate groups are mixed before, during or after shaping with at least 0.1% of an organic amine which contains not only one or more amino groups but also at least one nitrilo, carbamic ester, thio-carbamic -O-ester, carboxylic ester, carbonyl, carboxylic amide, ether or thioether group and/or at least one cycloaliphatic radical having at least 3C to improve resistance to gas-fume fading. The amine may have the general formula in which X denotes a hydrogen atom or a low M.W. alkyl group, a group of formula -CH2-SO2M or a methylene group whose second valence is attached to the ring atom bearing the nitrogen, Y denotes a hydrogen atom, a low M.W. alkyl group or one of the groups of the formula where A denotes a methylene group, 1, 2-propylene group, or ethylene group, Z denotes a methylene group or ethylene group and M denotes a hydrogen atom or an alkali metal ion or ammonium ion. Many suitable amines are specified. In examples: (1) a polyurethane cloth derived from 1,6-hexane diisocyanate and 1,4-butane diisocyanate was immersed in a liquor containing water and the formaldehyde-bisulphite compound of the reaction product of 4,41-diaminodicyclohexylmetnane and acrylonitrile, (2) a skein of polyurethane derived from 1 : 4-butane diisocyanate and 1 : 4-butane diol was immersed in a liquor containing water and 4,41 - diaminodicyclohexyl methane, (3) spirocyclohexylenaminopropionitrile - (1 - b - cyanoethyl - 2,2 - pentamethylene - ethyleneimine) was added to a molten polyurethane prior to spinning. In other examples, the amines used were: (4) the carbamic ester derived from 2 moles of phenylisocyanate and 1 mole of N-propyldiethanolamine, (5) the carbamic ester obtained from 1 mole of hexamethylene diisocyanate and 2 moles of N-dimethylisopropanolamine, (6) the formaldehyde-bisulphite compound of (12) as in Example (1); (13) a mixture of compounds of formulae ALSO:Polyurethanes of MW at least 104 and containing no isocyanate groups are mixed before, during or after shaping with at least 0.1% of an organic amine which contains not only one or more amino groups but also at least one nitrilo, carbamic ester, thio-carbamic-0-ester, carboxylic ester, carbonyl, carboxylic amide, ether or thioether and/or at least one cycloaliphatic radical having at least 3C to improve resistance to gas fume fading. In a typical Example (1) a cloth of polyurethane derived from 1,6 hexane diisocyanate and 1,4 butane diol was immersed in a liquor consisting of water and the formaldehyde bisulphite compound of the reaction product of 4,41 diaminodicyclohexyl methane and acrylonitrile, rinsed and dried. In Example (2) a skein of polyurethane was immersed in a liquor consisting of water and 4,41 diaminodicyclohexylmethane.

    Mixtures of monoazo dyes for dyeing and/or printing articles of linear polyesters
    200.
    发明专利
    Mixtures of monoazo dyes for dyeing and/or printing articles of linear polyesters 未知

    公开(公告)号：GB978544A

    公开(公告)日：1964-12-23

    申请号：GB1185463

    申请日：1963-03-26

    Applicant: BASF AG

    Inventor： LANGE GUENTER ,  WIPPEL HANS GUENTER ,  FEDERKIEL WILHELM

    IPC: C09B29/08 ,  D06P1/18 ,  D06P1/642

    Abstract: The invention comprises mixtures containing 99 to 30 mol. per cent of a dye of formula and 1 to 70 mol. per cent of a dye of formula wherein R and R1 are the same or different and are methyl, ethyl or propyl groups. The compounds are used to dye and print polyester materials. The mixtures are prepared by coupling diazotized 2,4-dinitro-6-bromoaniline with suitable coupling components and mixing the resultant azo dyes in the required proportions or by partially beta-hydroxyethylating a compound of formula and coupling the product with the diazo compound. Examples specify the mixture and their use in dyeing and printing polyethylene terephthalate.

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