公开(公告)号：AT68016T

公开(公告)日：1991-10-15

申请号：AT88117318

申请日：1988-10-18

Applicant: BASF AG

Inventor： LACH DIETRICH DR ,  ECKERT GUENTER DR ,  MALTRY WERNER ,  FISCHER KARL

IPC: C14C11/00

公开(公告)号：DE3761821D1

公开(公告)日：1990-04-12

申请号：DE3761821

申请日：1987-09-26

Applicant: BASF AG

Inventor： FISCHER KARL ,  ECKERT GUENTER DR ,  LACH DIETRICH DR

IPC: B05D7/12 ,  C08H1/00 ,  C09D189/00 ,  C14C11/00

公开(公告)号：DE3462018D1

公开(公告)日：1987-02-19

申请号：DE3462018

申请日：1984-03-21

Applicant: BASF AG

Inventor： OSTERTAG WERNER DR ,  WIENAND HENNING DR ,  LACH DIETRICH DR ,  HAHN ERWIN DR

IPC: C01G37/00 ,  C01G37/08 ,  C14C3/04 ,  C14C3/06

Abstract: The invention relates to basic chromium aluminum sulfates which are soluble in cold water and are of the general formula CrxAl2-x(OH)2y. (SO4)3-y.n H2O where x is from 0.1 to 1.9, y is from 0.01 to 2 and n is from 4 to 24, and a process for the preparation thereof. The process comprises reacting chromium (III)-containing waste sulfuric acid having a water content of 20-50% by weight with aluminum oxide and/or aluminum oxide hydroxide and/or aluminum hydroxide at a temperature of 100 DEG to 200 DEG C. The molten product is converted to droplet form and allowed to solidify in free fall.

公开(公告)号：DE3527013A1

公开(公告)日：1987-02-05

申请号：DE3527013

申请日：1985-07-27

Applicant: BASF AG

Inventor： SCHNEIDER KURT DR ,  LACH DIETRICH DR ,  STREICHER ROLF ,  SCHAFFER ORTWIN DR

IPC: C14C1/08

Abstract: In a particularly time-saving and economical process for deliming hides, a cyclic ester of sulfurous acid with an aliphatic 1,2-diol is used as the deliming agent.

公开(公告)号：DE3272390D1

公开(公告)日：1986-09-04

申请号：DE3272390

申请日：1982-12-16

Applicant: BASF AG

Inventor： HOEHR LOTHAR DR ,  LACH DIETRICH DR ,  STREICHER ROLF

IPC: C14C3/22 ,  C14C3/28

Abstract: An amino-containing and carboxyl-containing polymer tanning agent containing more carboxyl groups than amino groups, when used for retanning mineral-tanned leather, gives, alone or in combination with conventional anionic retanning agents, leather which is readily dyeable and has good sensory properties.

公开(公告)号：DE3332571A1

公开(公告)日：1985-03-28

申请号：DE3332571

申请日：1983-09-09

Applicant: BASF AG

Inventor： FISCHER KARL ,  ECKERT GUENTER DR ,  LACH DIETRICH DR

IPC: C14C11/00

Abstract: The invention relates to a novel process for the formaldehyde-free crosslinking of casein finishes in leather finishing. The process is one in which the crosslinking of the casein is carried out with the aid of hexamethylolmelamine hexamethyl ether in the presence of formic acid and/or of a complex of tartaric acid and boric acid as a catalyst.

公开(公告)号：DE3168387D1

公开(公告)日：1985-02-28

申请号：DE3168387

申请日：1981-10-24

Applicant: BASF AG

Inventor： GRYCHTOL KLAUS DR ,  LACH DIETRICH DR

IPC: C09B29/50 ,  C09B45/20 ,  C09B67/22 ,  D06P1/10 ,  D06P3/32

Abstract: Mixtures of two or more cobalt 1:2 complexes of azo dyes of the formula I I where R is where R1 is hydrogen, C1-C18-alkyl, or hydroxyalkyl or alkoxyalkyl which may be interrupted by oxygen, and X and Y are hydrogen, fluorine, chlorine, bromine, C1-C4-alkyl or C1-C4-alkoxy. The mixtures according to the invention are particularly useful for dyeing leather.

公开(公告)号：DE3260040D1

公开(公告)日：1984-03-15

申请号：DE3260040

申请日：1982-02-27

Applicant: BASF AG

Inventor： HAHN ERWIN DR ,  LACH DIETRICH DR ,  SCHNEIDER KURT DR ,  STRICKLER RAINER DR ,  STREICHER ROLF

IPC: C14C1/08

Abstract: Conventionally limed hides are delimed for from one to six hours under conventional deliming conditions in respect of liquor length, temperature and pH of the liquor, by a process in which a cyclic carbonate of a polyhydric aliphatic alcohol of 2 to 6 carbon atoms is employed as the active agent.

公开(公告)号：DE3062049D1

公开(公告)日：1983-03-24

申请号：DE3062049

申请日：1980-09-09

Applicant: BASF AG

Inventor： HAHN ERWIN DR ,  LACH DIETRICH DR ,  STREICHER ROLF

IPC: C14C1/04

Abstract: An auxiliary for the soaking of hides and skins, which consists of a salt of the formula I M+[O3S-S-R]- I where R is an organic radical of 1 to 8 carbon atoms, which may carry one or more functional groups, and M+ is one equivalent of a cation, mixtures thereof with other conventional soaking auxiliaries, and processes for their use. Using the novel auxiliary avoids all toxicity hazards and odor nuisance, as well as avoiding oxidation losses, and achieves good loosening of the hair.

公开(公告)号：ES2059449T3

公开(公告)日：1994-11-16

申请号：ES88111752

申请日：1988-07-21

Applicant: BASF AG

Inventor： EBEL KLAUS DR ,  REUTHER WOLFGANG DR ,  FIKENTSCHER ROLF DR ,  LACH DIETRICH DR ,  STREICHER ROLF ,  SCHAFFER ORTWIN DR

IPC: C08G12/02 ,  C08G12/12 ,  C08G12/32 ,  C08G12/34 ,  C08G14/06 ,  C08G14/10 ,  C14C3/04 ,  C14C3/18 ,  C14C3/28

Abstract: A tanning assistant useful in particular for tanning in combination with aluminum tanning agents is obtained by condensing melamine with glyoxal and/or glyoxylic acid and optionally with an aromatic compound which has a phenolic hydroxyl group or optionally with a condensable nitrogen compound.