公开(公告)号：BR0212245A

公开(公告)日：2004-10-05

申请号：BR0212245

申请日：2002-09-06

Applicant: BASF AG

Inventor： PABST GUNTHER ,  SEITZ ANDREAS ,  LUNKWITZ RALPH

IPC: A61L15/00 ,  A61L15/22 ,  A61L15/60 ,  B01J8/10 ,  C08F2/01 ,  C08F6/00 ,  C09K23/42 ,  C14C9/02 ,  F26B3/20 ,  F26B5/04 ,  F26B21/14 ,  F26B25/00 ,  C11D1/72

Abstract: The invention relates to an emulsifying agent composition which is particularly suitable for the production of low-fogging, high-exhaust stuffing agents, the stuffing agents thus produced and preferred and the utilization of an emulsifying agent composition and the stuffing agent in the production of leather.

公开(公告)号：BR0211707A

公开(公告)日：2004-09-21

申请号：BR0211707

申请日：2002-08-16

Applicant: BASF AG

Inventor： PABST GUNTHER ,  WOLF GERHARD ,  KAST J RGEN ,  WERNER J RGEN

IPC: C08G8/28 ,  C08L61/14 ,  C14C3/20 ,  C08L61/00

Abstract: A process for preparing a solution of sulfone-containing tanning materials comprises a) preparing a component A by a1) reacting phenol with concentrated sulfuric acid, with oleum of an SO 3 content of from 20 to 65% by weight or with a mixture of sulfuric acid and oleum of an SO 3 content of from 20 to 65% by weight, the molar ratio of total sulfuric acid, reckoned as SO 3 , to phenol being in the range from 0.7:1 to 1.5:1, at from 100 to 180° C. to form a mixture containing phenolsulfonic acid, dihydroxydiphenyl sulfone and sulfuric acid, or mixing the individual components to prepare a corresponding mixture, a2) then condensing said mixture with from 0.25 to 4 mol of urea and with from 0.5 to 4 mol of an aliphatic aldehyde of 1 to 6 carbon atoms per mole of phenol units present at from 40 to 90° C., a3) optionally adding a base to set a pH of from 4 to 5, b) preparing a component B by b1) reacting dihydroxydiphenyl sulfone with from 0.5 to 5 mol of an aliphatic aldehyde of from 1 to 6 carbon atoms and with from 0.4 to 2 mol of sodium sulfite per mole of dihydroxydiphenyl sulfone at from 90 to 180° C., b2) optionally adding an acid to set a pH of from 3.5 to 5.5, c) mixing from 10 to 90% by weight of component A with from 90 to 10% by weight of component B, the sum total of A and B being 100% by weight, and, unless already effected in steps a3) and b2), setting the pH of the mixture to a value in the range from 3.5 to 5.5.

公开(公告)号：DE10251141A1

公开(公告)日：2004-05-13

申请号：DE10251141

申请日：2002-10-31

Applicant: BASF AG

Inventor： TAEGER TILMAN LUEDECKE ,  PABST GUNTHER

IPC: C14C3/22 ,  C14C3/28 ,  C14C13/00 ,  C14C9/02

Abstract: Process for preparation of leather and artificial leather (sic) using a maximum of 2 wt.% vegetable and/or synthetic tannins relative to the pre-tanning wt. or folded wt. (sic) with insertion of polymers in a post-tanning step, where a maximum of 7.5 wt.% of untanned dubbing agent is used in the post-tanning step (PTS), with introduction of a working-in step (sic) into the PTS. Process for preparation of leather and artificial leather (sic) using a maximum of 2 wt.% vegetable and/or synthetic tannins relative to the pre-tanning wt. or folded wt. (sic) with insertion of polymers in a post-tanning step with optional addition of reactive carbonyl compounds in pre- and post-tanning operations, where a maximum of 7.5 wt.% of untanned dubbing agent is used in the post-tanning step (PTS), with introduction of a working-in step (sic) into the PTS, so that at least two working in steps (WIS) are used or at least two different polymers are introduced, and all the WIS are completed in a maximum of 12 hours. An Independent claim is introduced for leather and artificial leather (sic) obtained as described above (claimed).

公开(公告)号：AU2003294691A8

公开(公告)日：2004-05-13

申请号：AU2003294691

申请日：2003-10-14

Applicant: BASF AG

Inventor： TAEGER TILMAN LUDECKE ,  HUFFER STEPHAN ,  SCHROEDER STEFAN ,  PABST GUNTHER ,  LAMALLE PHILIPPE

IPC: C14C1/06 ,  C14C3/16 ,  C14C1/08

Abstract: Leather is produced by a process comprising at least two of the following process steps A) to D): A) use of one or more polyelectrolytes in the production of semifinished products or intermediate products, comprising the addition of one or more polyelectrolytes in at least one of the steps (a) to (d) (a) together with from 0 to 1.5% by weight, based on the salted weight, of lime, immediately before or during liming, (b) before or during deliming, (c) before or during bating, (d) together with, altogether, from 0 to 3% by weight, based on the pelt weight, of alkali metal or alkaline earth metal salt, immediately before or during pickling; B) treatment of the hides during liming in an aqueous liquor with one or more compounds of the formula B.1 or the corresponding alkali metal, alkaline earth metal, ammonium or phosphonium salts thereof, R 10 and X 1 to X 4 having the meanings stated in the description, with the proviso that at least two mercapto groups are present in the compound or the compounds B.1; C) use of degreasing agents of the formula C.1 for degreasing pelts, hides or other intermediate stages and semifinished products in leather production, n and R 16 to R 21 having the meanings stated in the description; D) tanning with the use of a tanning agent which can be prepared by reacting at least one aldehyde of the formula D.1, with at least one further identical or different aldehyde of the formula D.1 in the presence of an acidic catalyst and optionally in the presence of at least one further carbonyl compound of the formula D.2 Z and R 22 to R 25 having the meanings stated in the description, with the proviso that, when Z corresponds to a single chemical bond or a radical without alpha-hydrogen atoms, at least one further aldehyde of the formula D.1, in which Z contains alpha-hydrogen atoms, or at least one further carbonyl compound of the formula D.2 is present.

公开(公告)号：AU2003209725A8

公开(公告)日：2003-09-22

申请号：AU2003209725

申请日：2003-03-12

Applicant: BASF AG

Inventor： PABST GUNTHER ,  HORNER KLAUS DIETER ,  IGL GEORG

IPC: C14B1/28 ,  G01N21/88 ,  G01N33/44

公开(公告)号：AU2003209725A1

公开(公告)日：2003-09-22

申请号：AU2003209725

申请日：2003-03-12

Applicant: BASF AG

Inventor： PABST GUNTHER ,  IGL GEORG ,  HORNER KLAUS DIETER

IPC: C14B1/28 ,  G01N21/88 ,  G01N33/44

公开(公告)号：AU2003206938A1

公开(公告)日：2003-09-09

申请号：AU2003206938

申请日：2003-02-20

Applicant: BASF AG

Inventor： SEITZ ANDREAS ,  PABST GUNTHER ,  LUNKWITZ RALPH

IPC: C14C9/02

Abstract: Agents for the fatliquoring of, in particular, leathers and hides tanned in the absence of chromium comprise A) at least one modified natural oil and B) at least one stabilizer L n R where R a is H or methyl, R b is methyl, ethyl or tert-butyl, R c is methyl, tert-butyl, cyclohexyl or methylcyclohexyl, R is an n-valent C 3 - to C 30 -hydrocarbon radical which is unsubstituted or substituted and/or contains hetero atoms and n is an integer from 1 to 10, the stabilizer L n R having altogether at least 20, in particular altogether at least 28, carbon atoms, and, where n is 2, -R- also being -S-, -O-, -N(H)-, -CH 2 -, -(CH 2 ) 2 -, -CH(CH 3 )-, -CH 2 ) 3 -, -CH(C 2 H 5 )- or -C(CH 3 ) 2 -. The novel fatliquoring agents are used in leather production and/or leather treatment, and leather is produced and/or treated using aqueous dispersions of these fatliquoring agents.

公开(公告)号：DE10143948A1

公开(公告)日：2003-03-27

申请号：DE10143948

申请日：2001-09-07

Applicant: BASF AG

Inventor： PABST GUNTHER ,  ADAMS STEFAN ,  SEITZ ANDREAS ,  LUNKWITZ RALPH ,  VILL KARL

IPC: C14C9/02 ,  C14C13/00

Abstract: Surprisingly, it has been shown that the drawbacks of the previous state of the art, e.g. composition, purity and quality, and price variations of lanolin, can be avoided by substitution of crude, cleaned, and chemically modified wool fat and wool fat based mixtures by polyisobutene and polyisobutene derivatives as stuffing agents. A new stuffing agent for stuffing of skins and leather production including neutral and/or chemically modified native stuffing components (0-97 wt.%), one or more emulsifiers, and polyisobutene and/or polyisobutene derivatives of formula (I): R = a residue of formula (II), (III), or (IV); n = no value between 8 and 800; R = H or 2-8C alkyl, which can be substituted by one or two carboxyl or carboxylate groups, 1-6C alkoxycarbonyl with 1-6C in the alkoxy residue, alkylamino or dialkylamino-alkoxycarbonyl with a total of 1-6C in the alkylamino or dialkylamino groups, amidocarbonyl, cyan, phenyl, hydroxy, poly-lower alkoxy, lower acyloxy, or by the divalent group -O-CO-O- with which it forms a five-or six membered ring; R = R or with the exception of H, where the two R residues can be the same or different; R and R = H, OH, lower alkoxy, poly-lower alkoxy, or R or R = H and the other residue = sulfate (-OSO3H) or sulfone group (-SO3H), amino, alkylamino dialkylamino, with a total of 1-6C in the alkyamino or dialkylamino groups, or for groups of formula -O(CpH2p)COOH); p = 1-7, or their salts or 1-5C lower alkyl ester. The polymer has the formula (I), where R = a residue of formula (II) and R = H. Independent claims are included for: (1) a process for preparation of a polyisobutene stuffing composition by mixing at least one neutral and/or optionally a chemically modified, native stuffing component; and (2) a process for stuffing hides using polyisobutene directly as the stuffing material and/or a polyisobutene derivative in use singly or in combination with other stuffing materials, e.g. in the form of an aqueous emulsion.

公开(公告)号：AU5480101A

公开(公告)日：2001-10-30

申请号：AU5480101

申请日：2001-04-10

Applicant: BASF AG

Inventor： PABST GUNTHER ,  KAST JURGEN

IPC: C07C315/02 ,  C07C315/00 ,  C07C315/06 ,  C07C317/22

Abstract: A semicontinuous process is provided for the preparation of 4,4'-dihydroxydiphenyl sulfone, comprising the following steps:(a) reaction of phenol with a sulfonating agent,(b) suspension of the resulting crude product in water heated to at least 40° C., which is free of inert organic solvents and can contain residual amounts of unreacted phenol, and filtration of the product, and(c) recycling of the resulting educt-containing and/or product-containing waste streams into the preparative process,wherein, in carrying out step (b), the crude product and water are used in a weight ratio of 85:15 to 55:45.

公开(公告)号：BRPI0416389A

公开(公告)日：2007-02-21

申请号：BRPI0416389

申请日：2004-11-12

Applicant: BASF AG

Inventor： BUEHLER HOLGER ,  TELES JOAQUIM HENRIQUE ,  SUELING CARSTEN ,  TAEGER TILMAN LUEDECKE ,  PABST GUNTHER

IPC: C07C321/14 ,  C07C323/12 ,  C07C323/15 ,  C07C323/16 ,  C07C323/17 ,  C14C1/06

Abstract: horny substances are removed from hides of dead animals by a process wherein the hides of dead animals are treated with at least one substance of the formula I or at least one corresponding alkali metal, alkaline earth metal, ammonium or phosphonium salt, where R 1 and R 4 are identical or different and are selected from hydrogen, C 6 -C 14 -aryl and C 1 -C 12 -alkyl, unsubstituted or substituted by one or more SH or OH groups, R 2 and R 3 are identical or different and are selected from hydrogen, C 6 -C 14 -aryl and C 1 -C 12 -alkyl, unsubstituted or substituted by one or more SH or OH groups, at least one radical R 2 or R 3 not being hydrogen or R 1 and R 4 not being hydrogen, and it being possible in each case for two vicinal radicals R 1 to R 4 together to be C 3 -C 10 -alkylene, R 5 is selected from hydrogen, C 1 -C 12 -alkyl, H-C-O or C 1 -C 4 -alkyl-C-O, X 1 , X 2 , X 3 and X 4 are selected from OH, SH and NHR 5 , where, if R 1 to R 4 contain at least one sulfur atom, at least one radical X 1 to X 4 is SH, and, if R 1 to R 4 contain no sulfur atom, at least two radicals X 1 to X 4 are SH.