SURFACE-COATING BINDERS
    21.
    发明专利

    公开(公告)号:AU4246278A

    公开(公告)日:1979-06-21

    申请号:AU4246278

    申请日:1978-12-13

    Applicant: BASF AG

    Abstract: Surface-coating binders and their use. The binders are reaction products of (A) Mannich bases obtained from one or more condensed phenols, free from ether groups, which contain two or more phenolic hydroxyl groups per molecule, one or more butadiene or isoprene homopolymers or copolymers which contain one or more groups per molecule and have a mean molecular weight of from 500 to 6,000, one or more secondary amines which contain one or more hydroxyalkyl groups per molecule, or a mixture of such secondary amines with another secondary amine, and formaldehyde or a formaldehyde donor, with (B) one or more epoxy resins. These surface-coating binders are used especially for the cathodic electrocoating of metal articles.

    22.
    发明专利
    未知

    公开(公告)号:DE10338447A1

    公开(公告)日:2005-03-31

    申请号:DE10338447

    申请日:2003-08-21

    Applicant: BASF AG

    Abstract: Process for the preparation of homopolymers or copolymers by homopolymerization or copolymerization of free-radically polymerizable water-soluble and/or water-dispersible monomers, optionally with further comonomers and optionally with at least one crosslinker, in an inverse emulsion polymerization in the presence of at least one redox initiator pair comprising an oxidizing agent and a reducing agent, where the reducing agent is 2-hydroxy-2-sulfinatoacetic acid and/or salt thereof; homopolymers or copolymers preparable by the process according to the invention, water-in-oil emulsions which comprise at least one homopolymer or copolymer according to the invention, solid compositions which comprise at least one homopolymer or copolymer according to the invention, the use of 2-hydroxy-2-sulfinatoacetic acid and/or salt thereof as reducing agent in a process for the preparation of homopolymers or copolymers; the use of the water-in-oil emulsion comprising at least one homopolymer or copolymer according to the invention for the thickening of aqueous solutions, and the use of 2-hydroxy-2-sulfinatoacetic acid and/or salt thereof as reducing component of a redox initiator pair comprising an oxidizing agent and a reducing agent for avoiding induction times during inverse emulsion polymerization.

    HEAT-CURABLE COATING AGENT, AND CATHODIC ELECTROCOATING

    公开(公告)号:CA1263980A

    公开(公告)日:1989-12-19

    申请号:CA484057

    申请日:1985-06-14

    Applicant: BASF AG

    Abstract: A heat-curable aqueous coating agentcontains, as a binder, a mixture or precondensate of (A) a resin possessing basic nitrogen groups and (3) a phenol resin based on a resol ether which is bonded via o,o'-methylene ether groups and whose p-posi-tions predominantly carry hydrogen and/or methylolalkyl ether groups. After protonation with an acid, the said coating agent is particularly useful as a binder for the cathodic electrocoating of metal articles.

    28.
    发明专利
    未知

    公开(公告)号:BR8502880A

    公开(公告)日:1986-02-25

    申请号:BR8502880

    申请日:1985-06-17

    Applicant: BASF AG

    Abstract: The heat-curable coating agent according to the invention contains a combination of a binder, which possesses basic nitrogen groups and is rendered water-dilutable by protonation with an acid, and a crosslinking agent and, if required, pigments, fillers, corrosion inhibitors, surface coating assistants and catalysts, and the binder used is a reaction product of a dicarboxylic acid or of a dicarboxylate or of a (meth)acrylate oligomer or polymer with an adduct of a di- or triglycidyl ether and a polyamine, the polyamine containing 2 or more amine nitrogen atoms per molecule and one or more alkylene chains of 3 or more carbon atoms between the amino groups, and has an NH amine number of from 50 to 150 mg of KOH/g and is combined with aminoplasts and/or phenoplasts as crosslinking agents. The novel coating agent is useful as a binder for the cathodic electrocoating of metal articles.

    POLYADDUCT/POLYCONDENSATE CONTAINING BASIC NITROGEN GROUPS, AND ITS USE

    公开(公告)号:CA1173994A

    公开(公告)日:1984-09-04

    申请号:CA381763

    申请日:1981-07-15

    Applicant: BASF AG

    Abstract: A polyadduct/polycondensate, which is water-dilutable when protonated with an acid, and which contains basic nitrogen groups, is obtained by polyaddition reaction of (A) Mannich bases obtained from monophenols and/or polyphenols, one or more secondary amines which contain one or more hydroxyalkyl groups,or a mixture of such a secondary amine with another secondary amine, and formaldehyde or a formaldehyde donor, with (B) an epoxy resin, the polyadduct/polycondensate of (A) and (B) containing groups, bonded to aromatic rings, of the formula (I) (I) with or without groups of the general formula II (II) where R1 is a polydienyl radical, R2 and R3 are hydrogen or methyl and R4 and R5 are alkyl, hydroxyalkyl or alkoxyalkyl or are linked to one another to form a 5-membered or 6-membered ring. The polyadduct/polycondensate can be used, for example, as a surface-coating binder for the cathodic electrocoating of metal articles.

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