中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

137 records (took 0.026 seconds)

    11.
    发明专利
    未知

    公开(公告)号：DE502004002640D1

    公开(公告)日：2007-02-22

    申请号：DE502004002640

    申请日：2004-08-06

    Applicant: BASF AG

    Inventor： WOLF GERHARD ,  HUEFFER STEPHAN ,  DECKER JUERGEN ,  SCHERR GUENTER ,  REESE OLIVER

    IPC: C08G59/10 ,  C14C3/22 ,  C14C11/00

    Abstract: An epichlorohydrinamine polymer has a ratio of amine units to epichlorohydrin units of from 0.8:1.2 to 1.0:1.0, dimethylaminopropylamine and benzylamine preferably being used as amine and/or ammonium units. The novel epichlorohydrinamine polymer is used, for example, for the surface treatment of semifinished leather products and textile materials.

    13.
    发明专利
    未知

    公开(公告)号：BRPI0406758A

    公开(公告)日：2005-12-20

    申请号：BRPI0406758

    申请日：2004-01-29

    Applicant: BASF AG

    Inventor： HUEFFER STEPHAN ,  WOLF GERHARD ,  KLUEGLEIN MATTHIAS ,  KRONER MATTHIAS

    IPC: C14C3/22

    Abstract: In a process for the production of leather, pelts, pickled pelts or semifinished products are treated with at least one polymer which is obtainable by copolymerization of at least one ethylenically unsaturated dicarboxylic anhydride (A), derived from at least one dicarboxylic acid of 4 to 8 carbon atoms, at least one vinylaromatic compound (B) and optionally at least one ethylenically unsaturated monomer (C) which differs from (A) and has a hetero atom, reaction with at least one compound (D) of the formula Ia or Ib at least 0.55 equivalent, based on (A), of (D) being used, and optionally hydrolysis with water or aqueous alkaline solution, where, in formulae Ia and Ib, the variables are defined as follows: A 1 are identical or different and are C 2 -C 6 -alkylene R 1 is linear or branched C 1 -C 20 -alkyl, and n is an integer from 6 to 200.

    14.
    发明专利
    未知

    公开(公告)号：BRPI0406639A

    公开(公告)日：2005-12-06

    申请号：BRPI0406639

    申请日：2004-01-21

    Applicant: BASF AG

    Inventor： HUEFFER STEPHAN ,  REESE OLIVER ,  GRAMLICH WALTER ,  SCHROEDER STEFAN ,  SCHERR GUENTER ,  BACH VOLKER

    IPC: C07D307/32 ,  C07D309/30 ,  C14C3/18 ,  C14C9/02 ,  C14C3/16

    Abstract: Production of aqueous formulations comprises heating 2-organyl-oxy-, -thio- or -amino-dihydrofuran, dihydropyran, tetrahydrooxepin and tetrahydrooxocin compound(s) in the presence of water and an acid catalyst and (partly) removing the hydroxy, thio or amine compound during or at the end of heating. Production of aqueous formulations comprises heating 2-organyl-oxy-, -thio- or -amino-dihydrofuran, dihydropyran, tetrahydrooxepin and tetrahydrooxocin compound(s) of formula (I) in the presence of water and an acid catalyst and (partly) removing H-X-R3 during or at the end of heating. X = O, S or N-R6; R3, R6 = R, formyl or CO-R or may be combined to a ring if X is N-R6' R = 1-12 C alkyl or an optionally substituted 3-23 C cycloalkyl, 7-13 C aralkyl or 6-14 C aryl group; R1, R2, R4 = H or R or 2 adjacent groups may be combined to a ring; n = 1-4; and R5 = H or R or R4 and R5 or 2 adjacent R5 groups may be combined to a ring. Independent claims are also included for the following: (A) aqueous formulations prepared by this process; and (B) mixtures of dimers, oligomers and polymers of dicarbonyl compound(s) of formula (III).

    15.
    发明专利
    未知

    公开(公告)号：BR0315817A

    公开(公告)日：2005-09-13

    申请号：BR0315817

    申请日：2003-11-25

    Applicant: BASF AG

    Inventor： HUEFFER STEPHAN ,  SCHROEDER STEFAN ,  CARLE JUERGEN ,  RODLER THORSTEN ,  BACH VOLKER ,  TAEGER TILMAN LUEDECKE

    IPC: C14C3/16 ,  C14C3/28

    Abstract: A semifinished leather product is produced from an animal hide by pretanning with the use of a chromium-free tanning agent and of a clay mineral which, after stirring for 30 minutes in water at 50° C. at a circumferential rotor speed of from 5 to 25 m/s, has a number average particle diameter of less than 2 μm or a bimodal particle size distribution with a first, finely divided fraction whose number average particle diameter is less than 0.5 μm and a second, coarser fraction whose number average particle diameter is less than 5 μm, determined in each case by the method according to ISO 13320-1, by combined laser light diffraction and light scattering, a proportion of the first, finely divided fraction being from 10 to 90% by weight, and drying of the pretanned animal hide to a water content of from 5 to 45%, based on the total weight of the semifinished leather product.

    16.
    发明专利
    未知

    公开(公告)号：BR0315272A

    公开(公告)日：2005-08-23

    申请号：BR0315272

    申请日：2003-10-14

    Applicant: BASF AG

    Inventor： TAEGER TILMAN LUEDECKE ,  PABST GUNTHER ,  LAMALLE PHILIPPE ,  HUEFFER STEPHAN ,  SCHROEDER STEFAN

    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.

    18.
    发明专利
    未知

    公开(公告)号：NO20052680L

    公开(公告)日：2005-06-03

    申请号：NO20052680

    申请日：2005-06-03

    Applicant: BASF AG

    Inventor： BRAND SIEGBERT ,  HUEFFER STEPHAN ,  SCHWAB PETER ,  HERRLICH-LOOS MIRJAM

    IPC: B01D19/04 ,  C10L1/14 ,  C10L1/18 ,  C10L1/22 ,  C10L1/28

    Abstract: Additive mixture comprises a silicone antifoam and a lubricity improver selected from (partially) neutralized fatty acids and long-chain carboxylic acids and their esters. Independent claims are included for: (1) fuel composition comprising a hydrocarbon fuel, an additive mixture as above and optionally another additive; (2) additive concentrate comprising an additive mixture as above, a diluent and optionally another additive.

    Producing aqueous copolymer dispersions, e.g. useful for treating leather, comprises copolymerizing an ethylenically unsaturated dicarboxylic acid anhydride and an alkene oligomer and adding water
    19.
    发明专利
    Producing aqueous copolymer dispersions, e.g. useful for treating leather, comprises copolymerizing an ethylenically unsaturated dicarboxylic acid anhydride and an alkene oligomer and adding water 未知

    公开(公告)号：DE10345094A1

    公开(公告)日：2005-04-21

    申请号：DE10345094

    申请日：2003-09-26

    Applicant: BASF AG

    Inventor： HUEFFER STEPHAN ,  MIJOLOVIC DARIJO ,  DANISCH PETER ,  KLUEGLEIN MATTHIAS ,  PABST GUNTHER ,  WOLF GERHARD

    IPC: C08F290/04 ,  C14C3/22 ,  C14C9/02 ,  D06M15/227 ,  D06M15/27 ,  C08F210/14 ,  C04B41/49 ,  C08L67/06 ,  C09D167/06 ,  D06M15/263

    Abstract: Producing aqueous copolymer dispersions with a water content of 30-99.5 wt.% comprises radical copolymerization of an ethylenically unsaturated dicarboxylic acid anhydride having 4-8 carbon atoms, an oligomer of an alkene having 3-10 carbon atoms and optionally an ethylenically unsaturated comonomer, optionally reacting the product with an alkoxylated alcohol (Ia) or alkoxylated amine (Ib), and adding water. Producing aqueous copolymer dispersions with a water content of 30-99.5 wt.% comprises radical copolymerization of an ethylenically unsaturated dicarboxylic acid anhydride having 4-8 carbon atoms, an oligomer of an alkene having 3-10 carbon atoms, where the oligomer has a molecular weight of 300-5000 or is produced by oligomerising at least 3 equivalents of the alkene, and optionally an ethylenically unsaturated comonomer, optionally reacting the product with an alkoxylated alcohol of formula (Ia) or alkoxylated amine of formula (Ib), and adding water. HO(A 1>O) nR 1> (Ia) H 2N(A 1>O) nR 1> (Ib) A 1>2-20C alkylene; R 1>1-30C alkyl, phenyl or H; n : 1-200. Independent claims are also included for: (1) aqueous copolymer dispersions produced as above; (2) treatment of fibrous substrates using the dispersions; (3) fibrous substrates treated as above; (4) copolymers produced by radical copolymerization of an anhydride, oligomer and optional comonomer as above, reaction with (Ia) or (Ib) and optional hydrolysis; (5) impregnating flat substrates with dispersions or copolymers as above.

Patent Agency Ranking