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    11.
    发明专利
    未知

    公开(公告)号：MX9204836A

    公开(公告)日：1993-02-01

    申请号：MX9204836

    申请日：1992-08-20

    Applicant: HOECHST AG

    Inventor： BRINDOEPKE GERHARD ,  KURTH INGE ,  SCHWAB MICHAEL ,  WALZ GERD

    IPC: C08F290/00 ,  C08F299/02 ,  C08G18/67 ,  C09D4/02 ,  C09D11/10 ,  C09D161/20 ,  C09D175/14 ,  C09D175/16 ,  C08L75/02

    Abstract: Curable binders obtained by simultaneous reaction of A) urethanes or ureas, B) acrylic or methacrylic compounds containing hydroxyl groups, C) paraformaldehyde and D) if appropriate, polyols, wherein, in the case where no polyol D) is also reacted, the reaction is carried out in the presence of an acid ion exchanger, and in the case where a polyol D) is also reacted, the reaction is carried out in the presence of an acid ion exchanger or a strong acid. These binders are suitable as coating compositions which can be cured by electron beams or by UV light.

    13.
    发明专利
    未知

    公开(公告)号：MX9301695A

    公开(公告)日：1993-09-01

    申请号：MX9301695

    申请日：1993-03-25

    Applicant: HOECHST AG

    Inventor： SCHWAB MICHAEL ,  FRANK UDO ,  WALZ GERD

    IPC: C09D175/04 ,  C08G18/08 ,  C08G18/10 ,  C08G18/12 ,  C09D5/34 ,  C09D175/00 ,  D21H19/00

    Abstract: A water-dilutable (water-thinnable) two-component coating composition containing a) a polyisocyanate component comprising one or more organic polyisocyanates, and b) a polyurethane resin prepared by 1. reacting (A) polyisocyanates with (B) polyols having a mean molecular weight Mn of at least 400, (C) optionally low-molecular-weight polyols and (D) compounds containing at least two groups which are reactive towards isocyanate groups and at least one group which is capable of anion formation, to give a prepolymer containing free NCO groups, and 2. reacting the prepolymer formed in step 1 with at least one of the components: (E) low-molecular-weight polyols carrying no further groups which are reactive towards isocyanate groups, these compounds being employed in excess, (F) compounds which are monofunctional or contain active hydrogen of different reactivity and are different from (E), and optionally (G) compounds which are different from (B), (C), (D), (E) and (F) and contain at least two groups which are reactive with NCO groups. r

    AQUEOUS COATING COMPOSITION,ITS PREPARATION AND USE
    17.
    发明专利
    AQUEOUS COATING COMPOSITION,ITS PREPARATION AND USE 未知

    公开(公告)号：ZA91222B

    公开(公告)日：1991-10-30

    申请号：ZA91222

    申请日：1991-01-11

    Applicant: HOECHST AG

    Inventor： SCHWAB MICHAEL ,  MICHAEL SCHWAB ,  KUBILLUS UWE ,  UWE KUBILLUS

    IPC: B05D7/14 ,  C08G18/00 ,  C08G18/08 ,  C08G18/10 ,  C08G18/12 ,  C09D5/00 ,  C09D5/02 ,  C09D175/04 ,  C09D ,  C08G ,  B05D

    Abstract: An aqueous coating composition for the manufacture of primers or of filler coatings, which contains at least one water-dispersible binder resin, as well as crosslinking agents and, if appropriate, customary additives, characterised in that the water-dispersible binder resin is at least partly a polyurethane resin which contains components which are derived from (A) polyisocyanates, (B) polyols having an average molecular weight Mn of at least 400, (C) if appropriate low molecular weight polyols, (D) compounds which contain at least two groups which are reactive with isocyanate groups and at least one group capable of anion formation, (E) polyols which carry no further groups reactive with isocyanate groups, where these components (E) are each located on the chain end of the polyurethane resin, if appropriate (F) compounds which are monofunctional or contain active hydrogen of differing reactivity and are different from (E), where these components (F) are also located on the chain end of the polyurethane resin and, if appropriate (G) compounds which are different from (B), (C), (D), (E) and (F) and contain at least two groups reactive with NCO groups. The filler coatings obtainable therefrom are distinguished, inter alia, by improved resistance to flying stones at low temperatures and by good intermediate layer adhesion, while corresponding primers show improved protection against corrosion.

    19.
    发明专利
    未知

    公开(公告)号：BR9100595A

    公开(公告)日：1991-10-29

    申请号：BR9100595

    申请日：1991-02-14

    Applicant: HOECHST AG

    Inventor： SCHWAB MICHAEL ,  WALZ GERD ,  MERTEN GERHARD

    IPC: C08G18/08 ,  C08G18/10 ,  C08G18/12 ,  C08G18/28 ,  C08G18/36 ,  C08G18/58 ,  C08G18/64 ,  C09D5/00 ,  C09D5/02 ,  C09D175/00 ,  C09D175/04

    Abstract: An aqueous coating composition which contains at least one water-dispersible polyurethane resin containing air-drying groups and optionally further binder resins and conventional (paint) additives, characterised in that the polyurethane resin contains units derived from (A) polyisocyanates, (B) polyols containing air-drying groups, optionally (C) polyols containing no air-drying groups, (D) compounds containing at least two groups which are reactive towards isocyanate groups and containing at least one group which is capable of forming anions, (E) monoalcohols containing air-drying groups, and/or (F) compounds which are different from (B), (C), (D) and (E) and contain at least one group which is reactive with NCO groups. This coating composition has excellent pigment compatibility, and the coatings produced therefrom provide good corrosion protection and have good mechanical properties, even without addition of a siccative.

    AIR-DRYING POLYURETHANE RESINS, THEIR PREPARATION AND USE
    20.
    发明专利
    AIR-DRYING POLYURETHANE RESINS, THEIR PREPARATION AND USE 未知

    公开(公告)号：CA2035513A1

    公开(公告)日：1991-08-16

    申请号：CA2035513

    申请日：1991-02-07

    Applicant: HOECHST AG

    Inventor： SCHWAB MICHAEL ,  WALZ GERD ,  MERTEN GERHARD

    IPC: C08G18/08 ,  C08G18/10 ,  C08G18/12 ,  C08G18/28 ,  C08G18/36 ,  C08G18/58 ,  C08G18/64 ,  C09D5/00 ,  C09D5/02 ,  C09D175/00 ,  C09D175/04 ,  C09D175/12 ,  C09D167/00

    Abstract: 139.172 AIR-DRYING POLYURETHANE RESINS THEIR PREPARATION AND USE An aqueous coating composition containing at least one waterdispersible polyurethane resin containing air-drying groups and optionally further binder resins and conventional paint additives, which polyurethane resin contains structural units derived from (A) polyisocyanates, (B) polyols containing air-drying groups, (C) optionally polyols which are free of air drying groups, (D) compounds having at least two groups which are reactive with isocyanate groups and at least one group capable of anion formation. (E) optionally monoalcohols containing air-drying groups, (F) and / or compounds which differ from (B), (C), (D) and (E) and contain at least one group which is reactive with NCO groups. which has excellent pigment compatibility and the coatings produced therefrom have good corrosion protection and good mechanical properties even in the absence of siccatives.

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