公开(公告)号：DE19713112A1

公开(公告)日：1998-10-01

申请号：DE19713112

申请日：1997-03-27

Applicant: BASF AG

Inventor： WOLF GERHARD DR ,  IGL GEORG ,  STUEBINGER ADOLF DR ,  WERNER JUERGEN DR ,  LUCAE RUA JULIO ADAMS ,  SUBKLEW GERD MANFRED

IPC: C14C1/08 ,  C14C1/00 ,  C14C3/06

Abstract: Composition (I) for pickling unhaired hides contains: (i) naphthalene- and/or alkyl-naphthalene-monosulphonic acids (Ia); (ii) naphthalene- and/or alkyl-naphthalene-disulphonic acids (Ib); and (iii) naphthalene- and/or alkyl-naphthalene-trisulphonic acids (Ic).

公开(公告)号：DE19707713A1

公开(公告)日：1998-08-27

申请号：DE19707713

申请日：1997-02-26

Applicant: BASF AG

Inventor： WOLF GERHARD DR ,  IGL GEORG ,  GROESSER THOMAS DR ,  STUEBINGER ADOLF DR ,  WERNER JUERGEN DR ,  GUENTHER ERHARD DR

IPC: C14C3/20 ,  C07C303/06 ,  C07C309/29 ,  C07C309/35 ,  C08G12/36 ,  C08G12/40 ,  C14C3/28 ,  C08L61/14 ,  C14C9/04 ,  C08G12/10 ,  C08G12/32 ,  C07C309/28

Abstract: A composition contains (A) one or several aromatic sulphonates; (B) one or several aldehyde resins; and (C) a buffer. Also disclosed is the preparation of this composition and its use for treating, in particular neutralising, leather tanned with compounds containing or free from mineral substances.

公开(公告)号：DE4124948A1

公开(公告)日：1993-01-28

申请号：DE4124948

申请日：1991-07-27

Applicant: BASF AG

Inventor： WEBERNDOERFER VOLKMAR DR ,  STUEBINGER ADOLF DR ,  PROLL THEO DR ,  BERNBACH JUERGEN

IPC: C08G69/48 ,  C08G73/02 ,  C08G73/04 ,  D21H17/55 ,  D21H21/10

Abstract: The continuous grafting of NH gp.-contg. cpds. (I) with ethyleneimine (II) in aq. soln. in the presence of catalysts, at temps. of at least 80 deg.C, involves continuously feeding a mixt. of (I), (II) and catalyst at a pressure of at least 0.5 bar into a reaction zone, heating to a temp. at which the grafting reaction will start, passing the exothermic reaction mixt. through a cooled reaction zone in which further reaction occurs at not above 170 deg.C and then releasing the pressure. Pref. (I) are polyamidoamines, polyalkylene-polyamines or polyethyleneimine. Pref. reaction involves heating a mixt. of (I), (II) and catalyst (esp. H2SO4) or p-toluenesulphonic acid) to 90-100 deg.C at 1-20 bar, passing to a second heat exchanger at 100-150 deg.C and then depressurising. USE/ADVANTAGE - Provides a process which is more controllable than prior art processes and gives higher space time yields of prod. The prods. are useful e.g. as dehydrating retention and flocculating agents in paper m

公开(公告)号：DE1618116B1

公开(公告)日：1971-02-18

申请号：DE1618116D

申请日：1967-03-17

Applicant: BASF AG

Inventor： STUEBINGER ADOLF DR ,  MUELLER HERBERT DR ,  SCHEURING HUBERTUS DIPL-ING

IPC: C07F9/50

公开(公告)号：ES2070362T3

公开(公告)日：1995-06-01

申请号：ES91107074

申请日：1991-05-02

Applicant: BASF AG

Inventor： GRAF HERMANN DR ,  STUEBINGER ADOLF DR ,  LORENZ KLAUS DR ,  SCHAFFER ORTWIN DR ,  STORK KARL DR

IPC: C08G14/02

Abstract: Products of the condensation of phenolmonosulfonic acids, dihydroxydiphenyl sulfones, urea and formaldehyde can be obtained by (A) preparing a homogeneous reaction mixture in sulfuric acid from the phenolmonosulfonic acid and dihydroxydiphenyl sulfone in the molar ratio of from 3:1 to 10:1, with the proviso that the water content of the mixture is not more than 10% of the total weight of the components, and the mixture contains from 0.3 to 1.5 moles of sulfuric acid per mole of dihydroxydiphenyl sulfone, at from 100 DEG to 180 DEG C., (B) subsequently, at from 40 DEG to 90 DEG C., carrying out a precondensation with 1 to 2 moles of formaldehyde and 0.5 to 1.5 moles of urea per mole of phenol units present in aqueous medium, (C) partially neutralizing the reaction mixture, (D) adding to the partially neutralized reaction mixture 0 to 0.5 mole of phenol per mole of phenol units present and then 0.1 to 0.8 mole of formaldehyde per mole of phenol units then present, (E) further condensing at from 40 DEG to 90 DEG C., (F) shifting the pH of the reaction mixture into the neutral range and (G) subsequently acidifying with a weak acid.

公开(公告)号：DE3324917A1

公开(公告)日：1985-01-17

申请号：DE3324917

申请日：1983-07-09

Applicant: BASF AG

Inventor： FIKENTSCHER ROLF DR ,  SCHNEIDER SIEGFRIED ,  KLAHR ERHARD DR ,  REINERT FRIEDRICH DR ,  ECKERT GUENTER DR ,  STUEBINGER ADOLF DR

IPC: B01J31/12 ,  C07B61/00 ,  C07D203/08

Abstract: beta -N-aziridinopropionates of relatively high boiling alcohols or polyalcohols are prepared by transesterifying a beta -N-aziridinopropionate of a lower alcohol of 1 to 4 carbon atoms with a relatively high boiling alcohol or polyalcohol by a process in which the transesterification is carried out in the presence of, as a transesterification catalyst, a titanium(IV) or tin(IV) compound which is soluble in an organic medium.

公开(公告)号：DE2134209A1

公开(公告)日：1973-01-18

申请号：DE2134209

申请日：1971-07-09

Applicant: BASF AG

Inventor： MUELLER HERBERT DR ,  STUEBINGER ADOLF DR

IPC: C07C45/58 ,  C07C49/12

Abstract: Diacetyl, suitably pure for use as a flavouring agent in the margarine industry and as an additive to baking and pudding powders, is prepd. in high yields by oxidising methylvinyl ketone with H2O2 soln. at 10-60 degrees C in an aq. alkaline medium at pH 7-12 while preventing excess of methylvinyl ketone w.r.t. H2O2, keeping reaction mixt. at given temp. and pH for 0.5-3 hrs., acidifying esp. wit H2SO4, and slowly heating at pH 2 pref. 0.5-1.5 to 70-100 degrees C for 1-6 hrs. to effect rearrangement of 1,2-epoxy-butan-3-one formed. Cpds. destroying peroxides (e.g. CuSO4, FeSO4, MnO2) may be added to acidified reaction soln.

公开(公告)号：DE59105078D1

公开(公告)日：1995-05-11

申请号：DE59105078

申请日：1991-05-02

Applicant: BASF AG

Inventor： GRAF HERMANN DR ,  STUEBINGER ADOLF DR ,  LORENZ KLAUS DR ,  SCHAFFER ORTWIN DR ,  STORK KARL DR

IPC: C08G14/02

Abstract: Products of the condensation of phenolmonosulfonic acids, dihydroxydiphenyl sulfones, urea and formaldehyde can be obtained by (A) preparing a homogeneous reaction mixture in sulfuric acid from the phenolmonosulfonic acid and dihydroxydiphenyl sulfone in the molar ratio of from 3:1 to 10:1, with the proviso that the water content of the mixture is not more than 10% of the total weight of the components, and the mixture contains from 0.3 to 1.5 moles of sulfuric acid per mole of dihydroxydiphenyl sulfone, at from 100 DEG to 180 DEG C., (B) subsequently, at from 40 DEG to 90 DEG C., carrying out a precondensation with 1 to 2 moles of formaldehyde and 0.5 to 1.5 moles of urea per mole of phenol units present in aqueous medium, (C) partially neutralizing the reaction mixture, (D) adding to the partially neutralized reaction mixture 0 to 0.5 mole of phenol per mole of phenol units present and then 0.1 to 0.8 mole of formaldehyde per mole of phenol units then present, (E) further condensing at from 40 DEG to 90 DEG C., (F) shifting the pH of the reaction mixture into the neutral range and (G) subsequently acidifying with a weak acid.

公开(公告)号：DE4014977A1

公开(公告)日：1991-11-14

申请号：DE4014977

申请日：1990-05-10

Applicant: BASF AG

Inventor： GRAF HERMANN DR ,  STUEBINGER ADOLF DR ,  LORENZ KLAUS DR ,  SCHAFFER ORTWIN DR ,  STORK KARL DR

IPC: C08G14/02

Abstract: Products of the condensation of phenolmonosulfonic acids, dihydroxydiphenyl sulfones, urea and formaldehyde can be obtained by (A) preparing a homogeneous reaction mixture in sulfuric acid from the phenolmonosulfonic acid and dihydroxydiphenyl sulfone in the molar ratio of from 3:1 to 10:1, with the proviso that the water content of the mixture is not more than 10% of the total weight of the components, and the mixture contains from 0.3 to 1.5 moles of sulfuric acid per mole of dihydroxydiphenyl sulfone, at from 100 DEG to 180 DEG C., (B) subsequently, at from 40 DEG to 90 DEG C., carrying out a precondensation with 1 to 2 moles of formaldehyde and 0.5 to 1.5 moles of urea per mole of phenol units present in aqueous medium, (C) partially neutralizing the reaction mixture, (D) adding to the partially neutralized reaction mixture 0 to 0.5 mole of phenol per mole of phenol units present and then 0.1 to 0.8 mole of formaldehyde per mole of phenol units then present, (E) further condensing at from 40 DEG to 90 DEG C., (F) shifting the pH of the reaction mixture into the neutral range and (G) subsequently acidifying with a weak acid.

公开(公告)号：DE1618116B

公开(公告)日：1971-02-18

申请号：DE1618116D

申请日：1967-03-17

Applicant: BASF AG

Inventor： STUEBINGER ADOLF DR ,  MUELLER HERBERT DR ,  SCHEURING HUBERTUS DIPL-ING

IPC: C07F9/50

CPC classification number: C07F9/5068