DISPERSIONS CONTAINING POLYURETHANES HAVING CARBONYL GROUPS IN KETO FUNCTION

    公开(公告)号:CA2219835A1

    公开(公告)日:1998-05-21

    申请号:CA2219835

    申请日:1997-11-20

    Applicant: BASF AG

    Abstract: Aqueous dispersions containing a polyurethane(A) having structural units derived from compounds of the formula (I) (see fig. I) in which the substituents have the following meanings: R1, R2, R3 independently denote hydrogen, C1-C24 alkyl or C6-C24 alkenyl R4 denotes hydrogen R5, R6 (a) together denote C4-C10 alkanediyl, (b) each denotes C2-C10 alkyl, C5-C8 cycloalkyl or C7-C20 aralkyl, (c) each denotes a hydroxyl-terminated poly(C2-C4 alkylene oxide), or (d) one radical R5 or R6 has the meaning stated under (a) to (c) and the other is hydrogen or a radical of the formula II (see fig. II) in which X denotes C2-C6 alkanediyl and R7 has the same meaning as R5 or R6 except that R7 does not denote a radical of the formula II, where . - the radicals R5 and R6 in each of the cases (a) and (d) carry a total of one (1 ) hydroxyl group attached to an aliphatic carbon atom, - optionally the radical R5 and/or R6 carries 1 or 2 hydroxyl groups bonde d to an aromatic carbon atom or one nitrile, tertiary amino, carboxylic acid or sulfonic acid group which are optionally present in the form of their salts, and - the average functionality (F) of all structural components of the polyur ethane (A) is from 1.5 to 2.2, based on the functionalities which interreact during the synthesis of the polyurethane (A) in an addition reaction.

    4.
    发明专利
    未知

    公开(公告)号:DE59801870D1

    公开(公告)日:2001-11-29

    申请号:DE59801870

    申请日:1998-03-18

    Applicant: BASF AG

    Abstract: Solutions of aminotriazine resins at least 30 mol % of whose alkylol groups are etherified with a C1-C16 alkanol in a mono-C1-C4 alkyl glycol of the formulawhere R1 is C1-C4 alkyl, R2 is CH2-CH2 and R3 isand w, x, y and z are an integer from 0 to 10 and at least one of them is other than 0or in a solvent mixture which consists to the extent of at least 20% by weight a of mono-C1-C4 alkyl glycol of the above formula.

    Preparation, useful for obtaining corrosion protection layers to metallic surfaces, comprises a binding agent system, corrosion preventing polymer agent, solvent and a component of fine-particle filler, pigment or dye

    公开(公告)号:DE102005061318A1

    公开(公告)日:2007-06-21

    申请号:DE102005061318

    申请日:2005-12-20

    Applicant: BASF AG

    Abstract: Preparation, for obtaining corrosion protection layers to metallic surfaces, comprises at least one binding agent system (15-70 wt.%) that is hardened under atmospheric conditions, at least one corrosion preventing polymer agent (0.1-40 wt.%), at least one solvent (5-83.9 wt.%), and at least one component (1-70 wt.%) of fine-particle filler, pigment or dye. Preparation, for obtaining corrosion protection layers to metallic surfaces, comprises at least one binding agent system (15-70 wt.%) that is hardened under atmospheric conditions, at least one corrosion preventing polymer agent (0.1-40 wt.%), at least one solvent (5-83.9 wt.%), and at least one component (1-70 wt.%) of fine-particle filler, pigment or dye (where the corrosion preventing agent is obtained from the monomer building units of: (i) 70-30 mol.% of at least one monoethylenic unsaturated hydrocarbon and/or at least one monomer (with function groups X 1>) modified monoethylenic unsaturated hydrocarbons and vinyl ethers), (ii) 30-70 mol % of at least a 4-8C monoethylenic unsaturated dicarbonic acid and/or its anhydride or derivatives such as esters of the dicarbonic acids with alcohol of formula (OH-R 1>-X 2> n), amide and/or imide with ammonia and/or amine of formula (HR 2>N-R 1>-X 2> n), and (iii) 0-10 mol % of ethylenic unsaturated monomers (different from (i) and (ii), but copolymer of (i) and (ii)), where the quantities are related to the total quantity of all monomer containing copolymer). R 1>(n+1) valued group of 1-40C hydrocarbons, (where the non-adjoining C is replaced by O and/or N); R 2>H, 1-10C hydrocarbon group or -R 1>-X 2> n; n : 1-3; and X 2>functional group. Independent claims are included for: (1) a method for the corrosion protection by obtaining at least one corrosion protection layer with a thickness of at least 15 mu m, comprising applying the preparation on the polished or pre-coated metallic surface under atmospheric conditions, and hardening the applied layer under atmospheric conditions; and (2) a coated metallic surface obtained by the method.

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