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    Water-soluble disazo dyes of benzene series - with high solubility suitable for continuous dyeing processes
    1.
    发明专利
    Water-soluble disazo dyes of benzene series - with high solubility suitable for continuous dyeing processes 未知

    公开(公告)号：DE2412032A1

    公开(公告)日：1975-10-16

    申请号：DE2412032

    申请日：1974-03-13

    Applicant: BASF AG

    Inventor： LAMM GUNTHER DIPL CHEM DR

    IPC: C09B31/065 ,  C09B31/06

    Abstract: Water-soluble disazo dyes are of formula (I): A3 and A4 are H or SO3H; A2 and B' are as A3 or methyl; A' is as A2 or OH, Cl, OCH2CH2OSO3H or SO2NHCH2CH2SO3H; B2 is H or CH3; one of R' and R2 is 2-4C alkyl substd. with OH, CN, carbamoyl, carbalkoxy, carboxyl, N-substd. carbamoyl, acetyl, pyrrolidonyl, or: or is acetyl, propionyl or benzoyl, and the other is 1-4C n-alkyl; R3 is H, or 1-2C alkyl and at least one SO3H gp. is present). The novel cpds. are used for dyeing or printing of natural and esp. synthetic polyamides in brownish-yellow to brown shades. Good fastness esp. to light and wet treatments, with good levelling behaviour are obtd. The cpds. have high solubility as required for continuous dyeing.

    2.
    发明专利
    未知

    公开(公告)号：DE3201268A1

    公开(公告)日：1983-07-28

    申请号：DE3201268

    申请日：1982-01-16

    Applicant: BASF AG

    Inventor： DEHNERT JOHANNES DIPL CHEM DR ,  LAMM GUNTHER DIPL CHEM DR

    IPC: C09B29/039 ,  C09B29/00 ,  C09B29/42 ,  D06P1/18 ,  D06P3/60 ,  C09B29/045 ,  D06P1/04

    Abstract: A compound having the formula: I where X is hydrogen, chlorine or bromine, B is hydrogen, methyl, ethyl or propyl, and one of the radicals R1 or R2 is phenyl which is unsubtituted or mono- or poly-substituted by chlorine, methyl, ethyl, t-butyl, phenoxy, methoxy, ethoxy, propoxy or butoxy, and the other is C2-C8-alkyl which is unsubstituted or substituted by C1-C8-alkoxy or phenyl, or is allyl, cyclopentyl, cyclohexyl, methylcyclohexyl, The compounds of formula (I) are used as dyes, preferably for cellulose and cellulose-containing fabrics.

    Heat-stable dyes of 2,6-diamino-pyridine series - for dyeing thermoplastics in the melt
    4.
    发明专利
    Heat-stable dyes of 2,6-diamino-pyridine series - for dyeing thermoplastics in the melt 未知

    公开(公告)号：DE2409754A1

    公开(公告)日：1975-10-16

    申请号：DE2409754

    申请日：1974-03-01

    Applicant: BASF AG

    Inventor： DEHNET JOHANNES DIPL CHEM DR ,  LAMM GUNTHER DIPL CHEM DR

    IPC: C08K5/34 ,  C08K5/36 ,  C08K5/00

    Abstract: Thermoplastics are coloured with dyes of formula (I): where A' is a gp. A or a gp. (II) D is the residue of a diazo component, R is H, alkyl or (methyl)phenyl, X is H, carbamoyl or CN, Z is a (cyclo) alkylene, aralkylene or arylene gp., where the alkylene gp. may be interrupted by O, S or N-substd. imino, and A is H, (substd.) (cyclo)alkyl, aralkyl, phenyl or acyl or may together form a 5-7 membered heterocyclic ring with N. (I) are used for dyeing thermoplastics in bulk at is not >300 degrees C, e.g polystyrene, hard PVC, polyethylene, polyamides, polyesters, polycarbonates, styrene-butadiene copolymers and ABS copolymers. (I) are stable to heat. They have up to 3.5 x the colour strength of dyes normally used for dyeing in bulk.

    10.
    发明专利
    未知

    公开(公告)号：DE2734927A1

    公开(公告)日：1979-02-22

    申请号：DE2734927

    申请日：1977-08-03

    Applicant: BASF AG

    Inventor： DEHNERT JOHANNES DIPL CHEM DR ,  KURTZ WALTER DIPL CHEM DR ,  LAMM GUNTHER DIPL CHEM DR

    IPC: C08K5/00 ,  C08K5/23 ,  C08K5/35 ,  C08L67/00 ,  C08L77/00 ,  C09B29/01 ,  C09B29/42 ,  C09B29/36 ,  C09B39/00

    Abstract: An azo dye of the general formula (1) where A is cyano or carbamoyl, R is hydrogen, alkyl or phenyl, R1 is hydrogen, bromine, chlorine or nitro, R2 is hydrogen, chlorine, bromine, nitro, methyl, trifluoromethyl, sulfamoyl, N-monoalkyl- or N,N-dialkylsulfamoyl (where alkyl is of 1 to 4 carbon atoms), or a sulfonic acid phenyl ester, methylphenyl ester, chlorophenyl ester or methoxyphenyl ester group, R3 is hydrogen or alkyl of 1 to 8 carbon atoms which may be interrupted by oxygen and may be substituted by hydroxyl, pyrrolidonyl, phthalimidyl, alkoxy of 1 to 8 carbon atoms, allyloxy, benzyloxy, phenylethoxy, phenoxy, methylphenoxy, chlorophenoxy, methoxyphenoxy, or optionally substituted arylsulfonyl, or is benzyl, phenylethyl or cyclohexyl, or is phenyl which is unsubstituted or substituted by chlorine, bromine, nitro, methyl, ethyl, methoxy, ethoxy, phenoxy or dialkylamino (where alkyl is of 1 to 4 carbon atoms), or is naphthyl, pyridyl, thienyl or furyl, the substituents B1 independently of one another are hydrogen or an aliphatic, cycloaliphatic, araliphatic, aromatic, heterocyclic or acyl radical and B2 is hydrogen or an aliphatic radical. The dyes may be used for dyeing synthetic fibers, especially polyesters, and cellulose/polyester union fabrics, and give very fast dyeings.

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