POLYMERS CONTAINING URETHANE GROUPS, A PROCESS FOR THEIR PREPARATION, AND THEIR USE

    公开(公告)号:CA1307614C

    公开(公告)日:1992-09-15

    申请号:CA537830

    申请日:1987-05-25

    Applicant: HOECHST AG

    Abstract: of the disclosure: Polymers which contain urethane groups and are capable of being crosslinked by extraneous crosslinking agents, solutions thereof and aqueous dispersions thereof, prepared without the use of isocyanates by reacting polyamino compounds with polycarbonates and, if appropriate, reacting the reaction product further with polycarboxylic acids to give products having an acid number between 0 and 100, and, if appropriate, neutralizing the resulting products partly or completely by adding basic compounds, preferably organic bases, and, if appropriate, mixing the partly or completely neutralized products vigorously with an amount of water such that aqueous polymer dispersions having a solid content of up to 75% by weight, relative to the dispersion, are obtained. The use of the polymers containing urethane groups on their own or as a mixture with further reactive components, as extraneous crosslinking agents, from the group comprising isocyanate, melamine, alkyd and epoxy resins, in non-aqueous or aqueous formulations of adhesives and paints, especially in aqueous baking paint formulations and in aqueous, curable paint formulations which can be deposited by anaphoresis.

    PROCESS FOR THE PRODUCTION OF PIGMENTED POWDER COATINGS

    公开(公告)号:CA2036556A1

    公开(公告)日:1991-09-09

    申请号:CA2036556

    申请日:1991-02-18

    Applicant: HOECHST AG

    Abstract: HOE 90/F 079 of the disclosure: Process for the preparation of pigmented powder coatings The invention relates to a process for the preparation of pigmented crosslinkable powder coatings composed of a) the binder component, b) the hardener component, which can react with the binder component a) at elevated temperature, c) pigments and d) if appropriate customary powder coating additives, which comprises first dispersing component c) and if appropriate component d) in all or some of binder component a) or all or some of hardener component b) with the aid of dispersing machines employed in the preparation of solvent-containing coatings at a temperature above the melting range of component a) or b), and then mixing the dispersion with the remaining individual components in the customary manner, and extruding and grinding the mixture. The pigmented powder coatings obtainable by this process allow coatings of improved surface quality, in particular improved flow and reduced orange peel effect, to be obtained.

    COATING COMPOSITIONS IN POWDER FORM

    公开(公告)号:CA2064290A1

    公开(公告)日:1992-10-19

    申请号:CA2064290

    申请日:1992-03-27

    Applicant: HOECHST AG

    Abstract: HOECHST AKTIENGESELLSCHAFT - Werk KALLE-ALBERT 91/F 113 16 April 1991 WL-Dr.Ot.-ui Coating compositions in powder form A coating composition in powder form which is composed of (A) a copolymer containing glycidyl groups, (B) an aliphatic or cycloaliphatic dibasic acid, its anhydride or a polyol-modified anhydride of a dibasic acid, (C) optionally, pigments and other additives. The copolymer (A) has a molecular weight (Mn) of 1,000-10,000 and a glass transition temperature of 30-90.degree.C and is a mixed polymer composed of a) at least 10% by weight of glycidyl acrylate or glycidyl methacrylate, b) 5-50% by weight of tert.-butyl acrylate or tert. butyl methacrylate, c) 20-60% by weight of one or more alkyl esters of aliphatic unsaturated monocarboxylic or dicarboxylic acids and d) 0-50% by weight of one or more other olefinically unsaturated monomers.

    POLYMERIZABLE CARBAMOYLOXYALKYLDICARBOXYLIC ACID ESTERS CARRYING HYDROXYL GROUPS, A PROCESS FOR THEIR PREPARATION AND THEIR USE

    公开(公告)号:CA1287641C

    公开(公告)日:1991-08-13

    申请号:CA501331

    申请日:1986-02-07

    Applicant: HOECHST AG

    Abstract: Polymerizable carbamoyloxyalkyldicarboxylic acid esters, carrying hydroxyl groups, of the general formula (I) (I) in which R1 represents hydrogen or allyl or hydroxyalkyl having in each case 1 to 30 carbon atoms in the alkyl radical, R2 represents alkyl or hydroxyalkyl having in each case 1 to 30 carbon atoms in the alkyl radical or the radical subject to the proviso that R1 is hydrogen and x is an integer from 2 to 20, R3 represents linear or branched alkylene having 2 to 5 carbon atoms, R4 represents hydrogen or methyl and R5 represents hydroxyalkyl or hydroxyaminoalkyl having in each case 2 to 20 carbon atoms in the alkyl radical or an alkyl radical of this type which also contains ester and/or ether groups, and a process for their preparation. The esters according to the invention can be used for the preparation of copolymers.

    CURABLE COPOLYMERS, A PROCESS FOR THEIR PREPARATION AND THEIR USE

    公开(公告)号:CA1244183A

    公开(公告)日:1988-11-01

    申请号:CA501325

    申请日:1986-02-07

    Applicant: HOECHST AG

    Abstract: Copolymers based on A) 5-95% by weight of at least one polymerizable carbamoyloxyalkyldicarboxylic acid ester, carrying hydroxyl groups, of the general formula I in which R1 represents hydrogen or alkyl or hydroxyalkyl having in each case 1 to 30 carbon atoms in the alkyl radical, R2 represents alkyl or hydroxyalkyl having in each case 1 to 30 carbon atoms in the alkyl radical, or the radical subject to the proviso that R1 is hydrogen and x is an integer from 2 to 10, R3 represents linear or branched alkylene having 2 to 5 carbon atoms, R4 represents hydrogen or methyl and R5 represents hydroxyalkyl or hydroxyaminoalkyl having in each case 2 to 20 carbon atoms in the alkyl radical, or an alkyl radical of this type which also contains ester groups and/or ether groups, and 8) 5-95% by weight of at least one copolymerizable monomer belonging to the group comprising a) .alpha.,.beta.-olefinically unsaturated monocarboxylic acid and alkyl and hydroxyalkyl esters thereof having in each case 1 to 18 carbon atoms in the alkyl radical, and amides and nitriles thereof, and also monoalkyl and dialkyl esters of .alpha.,.beta.-olefinically unsaturated dicarboxylic acids having 1 to 18 carbon atoms in the alkyl radical, b) vinyl-aromatic monomers, c) vinyl esters of organic monocarboxylic acids having 1 to 18 carbon atoms in the carboxylic acid radical, and d) glycidyl esters of unsaturated monocarboxylic and/or dicarboxylic acids, the sum of the components A) and B) being in all cases 100% by weight, and a process for their preparation. The copolymers are used for the preparation of shaped articles and/or coatings which have excellent properties.

    6.
    发明专利
    未知

    公开(公告)号:IT1156142B

    公开(公告)日:1987-01-28

    申请号:IT2473382

    申请日:1982-12-14

    Applicant: HOECHST AG

    Abstract: A water-dilutable binder for coatings based on reaction products of diene polymers and poly-unsaturated polyfunctional amidoamines, which comprises (a) a cyclorubber, (b) a polyfunctional amidoamine which has been added to component (a) and is derived from reaction with a monomeric unsaturated fatty acid free from conjugated double bonds but having 12 to 18 carbon atoms or from its oligomers, and (c) a polyisocyanate which is bonded to component (b) and whose isocyanate groups which are not bonded to component (b) are blocked, a process for its preparation and its use for paints and coatings.

    CARBAMOYLOXYALKYLDIACID ESTER COPOLYMERS

    公开(公告)号:AU5331886A

    公开(公告)日:1986-08-14

    申请号:AU5331886

    申请日:1986-02-07

    Applicant: HOECHST AG

    Abstract: Copolymers based on (A) 5-95% by weight of at least one polymerizable carbamoyloxyalkyldicarboxylic acid ester, carrying hydroxyl groups, of the general formula I in which R1 represents hydrogen or alkyl or hydroxyalkyl having in each case 1 to 30 carbon atoms in the alkyl radical, R2 represents alkyl or hydroxyalkyl having in each case 1 to 30 carbon atoms in the alkyl radical, or the radical subject to the proviso that R1 is hydrogen and x is an integer from 2 to 10, R3 represents linear or branched alkylene having 2 to 5 carbon atoms, R4 represents hydrogen or methyl and R5 represents hydroxyalkyl or hydroxyaminoalkyl having in each case 2 to 20 carbon atoms in the alkyl radical, or an alkyl radical of this type which also contains ester groups and/or ether groups, and (B) 5-95% by weight of at least one copolymerizable monomer belonging to the group comprising (a) alpha , beta -olefinically unsaturated monocarboxylic acid and alkyl and hydroxyalkyl esters thereof having in each case 1 to 18 carbon atoms in the alkyl radical, and amides and nitriles thereof, and also monoalkyl and dialkyl esters of alpha , beta -olefinically unsaturated dicarboxylic acids having 1 to 18 carbon atoms in the alkyl radical, (b) vinyl-aromatic monomers, (c) vinyl esters of organic monocarboxylic acids having 1 to 18 carbon atoms in the carboxylic acid radical, and (d) glycidyl esters of unsaturated monocarboxylic and/or dicarboxylic acids, the sum of the components (A) and (B) being in all cases 100% by weight, and a process for their preparation. The copolymers are used for the preparation of shaped articles and/or coatings which have excellent properties.

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