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    12.
    发明专利
    未知

    公开(公告)号：DE19544739A1

    公开(公告)日：1997-06-05

    申请号：DE19544739

    申请日：1995-12-01

    Applicant: BASF AG

    Inventor： MOHR JUERGEN DR ,  MAHR NORBERT DR ,  FUNHOFF ANGELIKA DR ,  LEININGER HARTMUT DR ,  MALLM HEIKE ,  MEIXNER HUBERT DR ,  OPPENLAENDER KNUT DR ,  SCHERR GUENTER DR ,  WEISER JUERGEN DR

    IPC: C08G73/02 ,  C08G73/04 ,  C08G65/26

    Abstract: The invention relates to a process for the preparation of hydroxyalkylated polyethyleneimines by hydroxyalkylation of polyethyleneimines in one or two procedural stages to form reaction products which contain 1 to 200 mol alkylene oxide groups per NH group in the polyethyleneimine. In the one-stage process, there are anhydrous polyethyleneimines and 1 to 20 mol %, in relation to the polyethyleneimines, of at least one anhydrous base, or aqueous solutions of said substances are dehydrated and after removing all the water are reacted at temperatures above 135-150 DEG C with at least one alkylene oxide. Alternatively, in the two-stage process, in the first stage polyethyleneimine is reacted at temperatures of from 80 to 100 DEG C with 0.7 to 0.9 mol, in relation to a mol NH group in the polymerisate, of at least one alkylene oxide in an aqueous solution, and in the second stage the reaction product obtained in the first step is reacted in the presence of 1 to 20 mol %, in relation to polyethyleneimine, of an alkaline catalyst in the absence of water at temperatures of from 120 to 150 DEG C with at least one alkylene oxide to form hydroxyalkylated polyethyleneimines which contain 1 to 200 mol of alkylene oxide groups per NH group in the polyethyleneimine. The consequent alkoxylated products are only slightly coloured.

    13.
    发明专利
    未知

    公开(公告)号：ES2084212T3

    公开(公告)日：1996-05-01

    申请号：ES92108389

    申请日：1992-05-19

    Applicant: BASF AG

    Inventor： WEISER JUERGEN DR ,  REUTHER WOLFGANG DR ,  STORK KARL DR ,  SCHAFFER ORTWIN DR ,  FRANZMANN GERNOT DR ,  SCHWERZEL THOMAS DR

    IPC: C08G14/00 ,  C08G14/06 ,  C08G14/12 ,  C14C3/20

    Abstract: Products of the condensation of sulphonated phenols, urea, further organic nitrogen bases and formaldehyde, obtainable by (A) sulphonation of phenols using from 1.0 to 1.5 mol of sulphuric acid per mole of phenol and (B) condensation of these sulphonation products with (a) from 0.5 to 1.8 mol of urea per mole of phenol, (b) from 0.001 to 0.5 mol of at least one further organic nitrogen base per mole of phenol, and (c) from 1.0 to 3.0 mol of formaldehyde per mole of phenol. The condensation products are suitable as tanning agents in the production of leather and pelts and as spray assistants for redispersible polymer powders.

    14.
    发明专利
    未知

    公开(公告)号：DK0523485T3

    公开(公告)日：1996-01-29

    申请号：DK92111371

    申请日：1992-07-04

    Applicant: BASF AG

    Inventor： REUTHER WOLFGANG DR ,  WEISER JUERGEN DR ,  FIKENTSCHER ROLF DR ,  FATH WOLFGANG DR ,  BERBNER HEINZ ,  ZETTLER HANS DIETER ,  VOELKER HEINZ DR

    IPC: C08G14/09 ,  C08G14/06 ,  C08G14/10

    Abstract: Condensation products obtainable by condensation of a mixture containing, as essential components, (A) from 90 to 99.9 mol % of a mixture essentially comprising (a) from 30 to 99 mol % of melamin and (b) from 1 to 70 mol % of a substitute melamin of the formula I in which X, X' and X'' are selected from the group consisting of -NH2, -NHR and -NRR', and X, X' and X'' are not simultaneously -NH2, and R and R' are selected from the group consisting of hydroxy-C2-C10-alkyl, hydroxy-C2-C4-alkyl-(oxa-C2-C4-alkyl)n where n = 1 to 5, and amino-C2-C12-alkyl, or mixtures of melamins I, and (B) from 0.1 to 10 mol %, based on (A) and (B), of phenols which are unsubstituted or substituted by radicals selected from the group consisting of C1-C9-alkyl and hydroxyl, or of C1-C4-alkanes which are substituted by two or three phenol groups, or di(hydroxyphenyl) sulphones, or mixtures of these phenols, with formaldehyde or formaldehyde-generating compounds, where the molar ratio between melamin and formaldehyde is in the range from 1:1.15 to 1:4.5.

    15.
    发明专利
    未知

    公开(公告)号：DE59204654D1

    公开(公告)日：1996-01-25

    申请号：DE59204654

    申请日：1992-07-04

    Applicant: BASF AG

    Inventor： WEISER JUERGEN DR ,  REUTHER WOLFGANG DR ,  FIKENTSCHER ROLF DR ,  FATH WOLFGANG DR ,  BERBNER HEINZ ,  ZETTLER HANS DIETER ,  VOELKER HEINZ DR

    IPC: C08G14/09 ,  C08G14/06 ,  C08G14/10

    Abstract: Condensation products obtainable by condensation of a mixture containing, as essential components, (A) from 90 to 99.9 mol % of a mixture essentially comprising (a) from 30 to 99 mol % of melamin and (b) from 1 to 70 mol % of a substitute melamin of the formula I in which X, X' and X'' are selected from the group consisting of -NH2, -NHR and -NRR', and X, X' and X'' are not simultaneously -NH2, and R and R' are selected from the group consisting of hydroxy-C2-C10-alkyl, hydroxy-C2-C4-alkyl-(oxa-C2-C4-alkyl)n where n = 1 to 5, and amino-C2-C12-alkyl, or mixtures of melamins I, and (B) from 0.1 to 10 mol %, based on (A) and (B), of phenols which are unsubstituted or substituted by radicals selected from the group consisting of C1-C9-alkyl and hydroxyl, or of C1-C4-alkanes which are substituted by two or three phenol groups, or di(hydroxyphenyl) sulphones, or mixtures of these phenols, with formaldehyde or formaldehyde-generating compounds, where the molar ratio between melamin and formaldehyde is in the range from 1:1.15 to 1:4.5.

    17.
    发明专利
    未知

    公开(公告)号：DE4305298A1

    公开(公告)日：1994-08-25

    申请号：DE4305298

    申请日：1993-02-20

    Applicant: BASF AG

    Inventor： WEISER JUERGEN DR ,  REUTHER WOLFGANG DR ,  HAHN ERWIN DR

    IPC: C08G14/10 ,  C08J11/16 ,  C09D161/34 ,  C14C3/20 ,  C08L61/20 ,  C08G12/40 ,  C14C3/18 ,  C08J7/04 ,  C09D161/20

    Abstract: A process for the recycling of cured amino resins in which cured amino resins, optionally containing fillers, are treated with an aqueous sulphite, hydrogen sulphite or disulphite solution and the resultant low-molecular-weight degradation products are employed in chemical processes. The invention also relates to the low-molecular-weight degradation products of cured amino resins which are obtainable by this process, and to their use for the coating of mouldings, for the tanning of leather and hides, and for the production of mouldings containing or comprising cured amino resins.

    18.
    发明专利
    未知

    公开(公告)号：DE4102545A1

    公开(公告)日：1992-07-30

    申请号：DE4102545

    申请日：1991-01-29

    Applicant: BASF AG

    Inventor： WEISER JUERGEN DR ,  REUTHER WOLFGANG DR ,  BIRKHOFER HERMANN DR ,  STORK KARL DR ,  SCHAFFER ORTWIN DR

    IPC: C14C3/16

    Abstract: Disclosed is a method of self-tanning, pre-tanning and co-tanning skins and hides and for retanning leather and hides, using carbonyl compounds of formula (I), in which R is hydrogen, C1-C8 alkyl groups, phenylalkyl groups with a total of up to 12 C-atoms or phenyl groups, wherein phenyl residues may also be substituted with one or two C1-C4 alkyl groups, C1-C4 alkoxy groups, hydroxyl groups, amino groups, carboxyl groups, sulfo groups or halogen atoms; n is 1, 2, 3, or 4; and x is an OH, SH, NH2 or PH2 residue when n = 1, a bridging O, S, SO, SO2, NH, NR , PH or PR group, where R is C1-C4 alkyl, when n = 2, a tertiary N- or P-atom or the trivalent group P =O when n = 3, and a quaternary N-atom when n = 4. The corresponding acetals or ketals of the carbonyl compounds of formula (I) may also be used.

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