中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

39 records (took 0.021 seconds)

    11.
    发明专利
    未知

    公开(公告)号：BRPI0415542A

    公开(公告)日：2006-12-26

    申请号：BRPI0415542

    申请日：2004-10-15

    Applicant: BASF AG

    Inventor： DIETSCHE FRANK ,  KLIPPEL FRANK ,  KLUEGLEIN MATTHIAS ,  GOETHLICH ALEXANDER

    IPC: B05D7/16 ,  C23C22/08 ,  C23C22/53 ,  C23C22/56 ,  C23C22/78 ,  C23C22/83 ,  C09D5/08 ,  B05D7/14

    Abstract: The present invention relates to a substantially chromium-free process for passivating metallic surfaces of Zn, Zn alloys, Al or Al alloys by treating the surface with an acidic aqueous formulation which comprises at least one substantially noncrosslinked, water-soluble polymer or copolymer containing at least 50% by weight of (meth)acrylic acid units and comprises water or an aqueous solvent mixture comprising at least 50% by weight of water, and by further treating the surface with at least one water-soluble crosslinker comprising at least 2 crosslinking groups selected from the group consisting of azirane, oxirane, and thiirane groups. The invention further relates to passivating layers obtainable by means of the process and to a formulation suitable for this process.

    12.
    发明专利
    未知

    公开(公告)号：DE102005027568A1

    公开(公告)日：2006-12-21

    申请号：DE102005027568

    申请日：2005-06-14

    Applicant: BASF AG

    Inventor： WITTELER HELMUT ,  BERTKAU WALTER ,  HEIDENFELDER THOMAS ,  GOETHLICH ALEXANDER

    IPC: C23C22/12

    Abstract: Process for the passivation of metallic surfaces, in particular of strip metals, by treatment of the surface with an acidic, aqueous preparation which comprises at least one water-soluble acid group-containing polymer and at least one wax.

    Method for applying integrated pre-treatment layers, comprises applying cross linkable preparation containing e.g. corrosion protection agent, on metallic surface and thermally- and/or photochemically cross linking the layer
    13.
    发明专利
    Method for applying integrated pre-treatment layers, comprises applying cross linkable preparation containing e.g. corrosion protection agent, on metallic surface and thermally- and/or photochemically cross linking the layer 未知

    公开(公告)号：DE102005061317A1

    公开(公告)日：2007-06-21

    申请号：DE102005061317

    申请日：2005-12-20

    Applicant: BASF AG

    Inventor： GOETHLICH ALEXANDER ,  VANDERMEULEN GUIDO ,  HICKL MARKUS ,  DORNBUSCH MICHAEL ,  WITTELER HELMUT ,  FERNANDEZ GONZALEZ MONICA

    IPC: C09D5/08 ,  B05D7/16 ,  C09D5/12 ,  C09D5/46 ,  C09D175/06

    Abstract: Method for applying integrated pre-treatment layers with a thickness of 1-25 mu m, comprises applying cross linkable preparation on the metallic surface and thermally- and/or photochemically cross linking the layer, where the preparation contains e.g. corrosion protection agent, which is a copolymer from (a) monoethylenic unsaturated hydrocarbon, (b) 4-8C monoethylenic unsaturated dicarboxylic acid and (c) other ethylenic unsaturated monomers. Method for applying integrated pre-treatment layers with a thickness of 1-25 mu m to metallic surfaces, comprises applying a cross linkable preparation (A) on the metallic surface and thermally- and/or photochemically cross linking the applied layer, where (A) contains at least 20-70 wt.% of at least one thermal and/or photochemical cross linkable binder system, 20-70 wt.% of at least fine particle-inorganic fillers with an average particle size of less than 10 mu m, 0.25-40 wt.% of at least one corrosion protection agent and optionally a solvent, where the corrosion protection agent is at least a copolymer, obtained from (a) 70-30 mol.% of at least a monoethylenic unsaturated hydrocarbon (a1) and/or at least one monomer (monoethylenic unsaturated hydrocarbons modified with functional groups X 1> (a2) and vinylethers (a3)), (b) 30-70 mol.% of at least 4-8C monoethylenic unsaturated dicarboxylic acid, its anhydride and/or derivatives (where the derivatives are esters of dicarboxylic acids with alcohols of formula (HO-R 1>-X 2> n), amides, imides with ammonia and/or amines of formula (HR 2>N-R 1>-X 2> n)) and (c) 0-10 mol.% of other ethylenic unsaturated monomers, which are different from (a) and (b), but are copolymerizable with (a) and (b), where the quantities in each case are referred to the total quantity of all monomer units in the copolymer. R 1>(n+1)-value of 1-40C hydrocarbons, optionally substituted with non-adjacent C-atoms and O and/or N; R 2>H, 1-10C hydrocarbon group or -(R 1>-X 2> n); n : 1-3; and X 2>a functional group. Independent claims are included for: (1) a molded article with a metallic surface, which is coated with an integrated pretreatment layer with a thickness of 1-25 mu m obtained by the above procedure; and (2) a preparation (A) for applying integrated pretreatment layers on metallic surfaces.

    19.
    发明专利
    未知

    公开(公告)号：DE102004041127A1

    公开(公告)日：2006-03-02

    申请号：DE102004041127

    申请日：2004-08-24

    Applicant: BASF AG

    Inventor： MICHL KATHRIN ,  GERST MATTHIAS ,  KLIPPEL FRANK ,  GOETHLICH ALEXANDER ,  DIETSCHE FRANK ,  WITTELER HELMUT

    IPC: C08F220/04 ,  C08F220/06 ,  C08F222/04 ,  C08F222/06 ,  C09J133/00 ,  C23C22/00

    Abstract: Partially neutralized carboxylate-rich copolymers, processes for their preparation and methods of using the same are disclosed, the copolymers comprising: monomers (A), (B), and (C); wherein monomer (A) comprises at least one monoethylenically unsaturated monocarboxylic acid, and is present in an amount of 30% to 79.99% by weight; wherein monomer (B) comprises at least one monoethylenically unsaturated dicarboxylic acid selected from the group consisting of acids corresponding to general formula I, acids corresponding to general formula II, anhydrides thereof, and other hydrolyzable derivatives thereof, and is present in an amount of 20.01% to 70% by weight: (HOOC)R1C-CR2(COOH) (I) R1R2C-C(-(CH2)n-COOH)(COOH) (II) wherein R1 and R2 each independently represent H or a straight-chain or branched, optionally substituted alkyl radical having 1 to 20 carbon atoms, or, in the case of (I), R1 and R2 together being an optionally substituted alkylene radical having 3 to 20 carbon atoms, and n represents an integer from 0 to 5; wherein monomer (C) comprises at least one additional ethylenically unsaturated comonomer, and is present in an amount of 0% to 40% by weight; wherein the carboxylate-rich copolymer is partially neutralized with at least one amine and the carboxylate-rich copolymer has a degree of neutralization of 2 to 18 mol %, based on the total amount of all COOH groups of the monocarboxylic and dicarboxylic acids; and wherein the carboxylate-rich copolymer has an average molecular weight Mw of at least 3000 g/mol.

    20.
    发明专利
    未知

    公开(公告)号：DE10349728A1

    公开(公告)日：2005-05-25

    申请号：DE10349728

    申请日：2003-10-23

    Applicant: BASF AG

    Inventor： DIETSCHE FRANK ,  KLIPPEL FRANK ,  KLUEGLEIN MATTHIAS ,  GOETHLICH ALEXANDER

    IPC: B05D7/16 ,  C23C22/08 ,  C23C22/53 ,  C23C22/56 ,  C23C22/78 ,  C23C22/83 ,  C23F15/00

    Abstract: The present invention relates to a substantially chromium-free process for passivating metallic surfaces of Zn, Zn alloys, Al or Al alloys by treating the surface with an acidic aqueous formulation which comprises at least one substantially noncrosslinked, water-soluble polymer or copolymer containing at least 50% by weight of (meth)acrylic acid units and comprises water or an aqueous solvent mixture comprising at least 50% by weight of water, and by further treating the surface with at least one water-soluble crosslinker comprising at least 2 crosslinking groups selected from the group consisting of azirane, oxirane, and thiirane groups. The invention further relates to passivating layers obtainable by means of the process and to a formulation suitable for this process.

Patent Agency Ranking