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    PROCESS FOR THE PRODUCTION OF PIGMENTED POWDER COATINGS
    3.
    发明专利
    PROCESS FOR THE PRODUCTION OF PIGMENTED POWDER COATINGS 未知

    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

    Inventor： JUST CHRISTOPH ,  GODAU CLAUS ,  PLUM HELMUT

    IPC: C08G18/62 ,  C09D5/03 ,  C09D5/46

    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
    4.
    发明专利
    COATING COMPOSITIONS IN POWDER FORM 未知

    公开(公告)号：CA2064292A1

    公开(公告)日：1992-10-19

    申请号：CA2064292

    申请日：1992-03-27

    Applicant: HOECHST AG

    Inventor： FINK DIETMAR ,  GODAU CLAUS ,  JUST CHRISTOPH ,  PLUM HELMUT

    IPC: B05D7/00 ,  B05D7/26 ,  C08G59/32 ,  C08G59/42 ,  C09D5/03 ,  C09D5/46 ,  C09D125/14 ,  C09D133/14 ,  C09D163/00 ,  C09D163/10 ,  C09D167/00

    Abstract: HOECHST AKTIENGESELLSCHAFT - Werk KALLE-ALBERT 91/F 114 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 tMn) 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 20% by weight of glycidyl acrylate or glycidyl methacrylate, b) 35-50% by weight of styrene, c) 10-45% 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.

    LIQUID COATING AGENT
    5.
    发明专利
    LIQUID COATING AGENT 未知

    公开(公告)号：CA2052156A1

    公开(公告)日：1992-04-17

    申请号：CA2052156

    申请日：1991-09-24

    Applicant: HOECHST AG

    Inventor： BRINDOEPKE GERHARD ,  KUBILLUS UWE ,  PLUM HELMUT

    IPC: A47K3/28 ,  A47K3/30 ,  C08G59/14 ,  C08G59/16 ,  C08G59/40 ,  C08G59/50 ,  C08G59/62 ,  C09D163/00 ,  C09D163/02

    Abstract: 90/F 312 13 November 1990 WLG-Dr.Ot.-ui of the disclosure: Liquid coating agent Liquid coating agent based on a polymer containing acetoacetate groups and a polyamine in the form of the corresponding aldimine or ketimine, the polymer containing acetoacetate groups being obtained by reaction of a polyepoxide with water, an amine or a hydroxycarboxylic acid and subsquent esterification or transesterification with acetoacetic acid. These liquid coating agents are particularly suitable as binders in two-component automobile repair fillers or as two-component primers.

    PROCESS FOR THE MANUFACTURE OF HARDENABLE COPOLYMERS AND THE USE THEREOF
    7.
    发明专利
    PROCESS FOR THE MANUFACTURE OF HARDENABLE COPOLYMERS AND THE USE THEREOF 未知

    公开(公告)号：CA1174790A

    公开(公告)日：1984-09-18

    申请号：CA384398

    申请日：1981-08-21

    Applicant: HOECHST AG

    Inventor： RITZ JUERGEN ,  FISCHER HANNES ,  PLUM HELMUT

    IPC: C08F20/00 ,  C08F20/26 ,  C08F222/10 ,  C08L75/00 ,  C09D133/14 ,  C09D167/07 ,  C09J133/04 ,  C08G63/42 ,  C08G18/42

    Abstract: : Process for the manufacture of hardenable copolymers by the polymerisation of unsaturated esters with unsaturated polymerisable monomers containing no free COOH groups, wherein an olefinically unsaturated diester containing OH groups is used as the unsaturated ester, said diester being obtained by reacting olefinically unsaturated dicarboxylic acids or the anhydrides thereof with a polyhydric alcohol and a monoepoxide compound in one or more steps, characterised in that the copolymerisation of the diesters with monomers which contain no free COOH groups is carried out in the presence of copolymerisable monomers containing free COOH groups, and the use of the copolymers as hardenable binders for lacquers and/or coating compositions.

    HYDROXYL CONTAINING STYRENE COPOLYMERS
    8.
    发明专利
    HYDROXYL CONTAINING STYRENE COPOLYMERS 未知

    公开(公告)号：AU535337B2

    公开(公告)日：1984-03-15

    申请号：AU6349980

    申请日：1980-10-17

    Applicant: HOECHST AG

    Inventor： FISCHER HANNES ,  PLUM HELMUT

    IPC: C08F2/00 ,  C08F2/02 ,  C08F20/00 ,  C08F20/26 ,  C08F20/32 ,  C08F220/00 ,  C08F220/04 ,  C08F220/06 ,  C08F220/10 ,  C08F220/28 ,  C08F220/32 ,  C08G18/62 ,  C09D175/04 ,  C08F212/08 ,  C08F220/18 ,  C08F220/26 ,  C08G18/02

    Abstract: A process for the preparation of copolymers containing hydroxyl groups by radical reaction of (A) 10 to 30% by weight of at least one glycidyl ester containing 12 to 14 carbon atoms, of an aliphatic saturated monocarboxylic acid with a tertiary or quaternary alpha -carbon atom; and (B) 90 to 70% by weight of at least two unsaturated copolymerisable monomers, at least one of which contains at least one carboxyl group, wherein component (A) is introduced first to a reaction zone and is then reacted at a temperature of at least 140 DEG C. with component (B) and a radical initiator, the component (B) containing a monomer having carboxyl groups, wherein for the preparation of low-viscosity copolymers component (A) is reacted at 140 to 200 DEG C. by substance polymerisation until a degree of reaction of at least 95% is achieved, the component (B) containing at least 3.3% by weight of the monomer having carboxyl groups, and an article coated with a product of said process.

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