中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

159 records (took 0.025 seconds)

    11.
    发明专利
    未知

    公开(公告)号：DE50207584D1

    公开(公告)日：2006-09-07

    申请号：DE50207584

    申请日：2002-01-16

    Applicant: BASF AG

    Inventor： KRONER MATTHIAS ,  GERST MATTHIAS ,  RECK BERNHARD

    IPC: C08G73/10 ,  C08L79/08

    Abstract: The present invention relates to the use of compositions comprising reaction products of low molecular mass dicarboxylic or tricarboxylic acids with ammonia to produce moldings comprising finely divided materials.

    12.
    发明专利
    未知

    公开(公告)号：AT334158T

    公开(公告)日：2006-08-15

    申请号：AT02001203

    申请日：2002-01-16

    Applicant: BASF AG

    Inventor： KRONER MATTHIAS ,  GERST MATTHIAS ,  RECK BERNHARD

    IPC: C08G73/10 ,  C08L79/08

    Abstract: The present invention relates to the use of compositions comprising reaction products of low molecular mass dicarboxylic or tricarboxylic acids with ammonia to produce moldings comprising finely divided 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：DE50107292D1

    公开(公告)日：2005-10-06

    申请号：DE50107292

    申请日：2001-06-06

    Applicant: BASF AG

    Inventor： NEUMANN PETER ,  BERTLEFF WERNER ,  KRONER MATTHIAS ,  MOHR BERNHARD

    IPC: C08F290/06 ,  C08G81/02 ,  C11D3/37 ,  C11D11/00

    Abstract: Polymers of a poly(meth)acrylic acid main chain in which, based on the main chain, 0 to 30% by weight of the (meth)acrylic acid basic building blocks may be replaced by maleic acid (anhydride) basic building blocks, fumaric acid basic building blocks or mixtures thereof and 0 to 10% by weight of the (meth)acrylic acid basic building blocks may be replaced by other copolymerizable ethylenic basic building blocks,and C1-30-alkylpoly-C2-4-alkylene glycols, bonded to the main chain via ester groups, having an average molecular weight of from 250 to 10 000 as side chains,where, based on the polymer, 1 to 19% by weight of the main chain and 81 to 99% by weight of the side chains are present and this ratio and the average molecular weight of the side chains are chosen such that free carboxyl groups are present in the polymer,are used as controllable dispersants for detergents or cleaners or constituents thereof.

    15.
    发明专利
    未知

    公开(公告)号：AT297957T

    公开(公告)日：2005-07-15

    申请号：AT01986413

    申请日：2001-12-14

    Applicant: BASF AG

    Inventor： KRONER MATTHIAS ,  PFISTER JUERGEN ,  FAUL DIETER ,  RAUBENHEIMER HANS-JUERGEN ,  BUECHNER KARL-HEINZ

    IPC: C08G65/48 ,  C08G65/32 ,  C08G65/332

    Abstract: Alkylpolyalkylene glycol esters of monoethylenically unsaturated carboxylic acids are prepared by esterifying (a) monoethylenically unsaturated carboxylic acids with (b) polyalkylene glycols which are endcapped at one end, in the absence of a solvent and in the presence of polymerization inhibitors and esterification catalysts at not more than 160° C. by a process in which the esterification is first carried out under atmospheric pressure or at up to 50 bar, the water formed in the esterification is then distilled from the reaction mixture at from 10 to 500 mbar and the esterification is then continued under atmospheric pressure or at up to 50 bar.

    18.
    发明专利
    未知

    公开(公告)号：DE10125238A1

    公开(公告)日：2002-11-28

    申请号：DE10125238

    申请日：2001-05-22

    Applicant: BASF AG

    Inventor： KRONER MATTHIAS ,  BUECHNER KARL-HEINZ ,  BRODT GREGOR

    IPC: C04B7/52 ,  C04B24/26 ,  C04B24/32 ,  C04B103/52 ,  C08F6/10 ,  C08F8/14 ,  C08F290/06 ,  C08F299/02 ,  C08G65/332 ,  C08L71/02 ,  C08G63/78 ,  C04B24/24

    Abstract: Water soluble polymer comprising esters of acrylic acid, methacrylic acid and alkylpolyalkyene glycols, is prepared by esterification followed by radical polymerization of the resulting mixture in an aqueous medium, whereby the organic solvent is azeotropically distilled off during the polymerization and recycled to the mixture or is replaced by the addition of fresh water. A water soluble polymer (I) comprising esters of acrylic acid, methacrylic acid and alkylpolyalkyene glycols, is prepared by esterification of a mixture of acrylic acid (A), methacrylic acid (B) and an alkylpolyalkylene glycol (C) having a mol.wt. (Mw) of 350-4000 in a molar ratio of (A) to (C) of 0.1-4:1, a molar ratio of (B to (C) of 1-5:1 and molar ratio of the sum of (A) and (B) to (C) of 2-6:1, in the presence of an organic solvent that forms an azeotrope with water to at least 85 wt.% (w.r.t. (C)), followed by radical polymerization of the resulting mixture in an aqueous medium, whereby the organic solvent is azeotropically distilled off from the reaction mixture during the polymerization and the distilled water is recycled to the mixture or is replaced by the addition of fresh water.

    19.
    发明专利
    未知

    公开(公告)号：DE10125237A1

    公开(公告)日：2002-11-28

    申请号：DE10125237

    申请日：2001-05-22

    Applicant: BASF AG

    Inventor： KRONER MATTHIAS ,  BUECHNER KARL-HEINZ ,  BRODT GREGOR

    IPC: C04B7/52 ,  C04B24/26 ,  C04B24/32 ,  C04B103/52 ,  C08F2/10 ,  C08F2/38 ,  C08F6/10 ,  C08F8/00 ,  C08F20/28 ,  C08F290/06 ,  C08G65/332 ,  C08L71/02 ,  C08G63/78 ,  C08F8/14 ,  C04B24/24

    Abstract: Water-soluble polymers (I) of esters of acrylic acid (II) and alkyl-polyalkylene glycols (III) are obtained by a method involving azeotropic esterification of (II) and (III) in presence of organic solvent followed by radical polymerisation of the mixture with removal of solvent by azeotropic distillation and replacement of the lost water. Water-soluble polymers (I) of esters of acrylic acid (II) and alkylpolyalkylene glycols (III), obtained by azeotropic esterification of a mixture of (II) and (III) in a mol ratio of (2-3):1 in presence of at least 85 wt% (based on III) of an organic solvent which forms an azeotrope with water, followed by radical polymerisation of the resulting mixture with azeotropic distillation to remove the solvent and with replacement of lost water by recycling or by the addition of fresh water. An Independent claim is also included for a method for the production of (I) as described above.

Patent Agency Ranking