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    Process for dyeing shaped acrylonitrile copolymerizates
    1.
    发明授权
    Process for dyeing shaped acrylonitrile copolymerizates 失效
    用于染色形成丙烯酰基共聚物的方法

    公开(公告)号：US3594110A

    公开(公告)日：1971-07-20

    申请号：US3594110D

    申请日：1968-02-19

    Applicant: HOECHST AG

    Inventor： HAPPE WILHELM ,  HEITZER ERICH ,  MULLNER STEFAN ,  RINNO HELMUT

    IPC: D06P3/00 ,  D06P1/18

    CPC classification number: D06P3/00

    Abstract: A PROCESS FOR FAST DYEING A SHAPED ARTICLE OF A COPOLYMERIZATE OF (A) STYRENE-ACRYLONITRILE, METHACRYLIC ACID LOWER ALKYL ESTER OR ACRYLONITRILE AND (B) ABOUT 0.1 TO ABOUT 5.0 MOL PERCENT OF A VINYL COMPOUND OF THE FORMULA

    R4-C(-R3)=C(-R2)-CO-N(-R1)-PH-A-X

    WHEREIN R1 AND R2 EACH IS HYDROGEN OR AN ALKYL OF 1 TO 4 CARBON ATOMS, R3 AND R4 EACH IS HYDROGEN OR A GROUP -COOCH2,-COOC2H5,-COOC3H7 OR-COOC4H5, OR R1 AND R4 FORM A RING WITH A-CO-BRIDGE, PH IS PHENYLENE, ALKOXY-PHENYLENE OR CHLOROPHENYLENE, A IS A GROUP -SO2C2H4- AT THE M OR P POSITION TO THE AMIDO GROUP, AND X IS A GROUP OF -OSO2ME OR -OCOCH3 IN WHICH ME IS AMMONIUM, SODIUM OR POTASSIUM, WHICH COMPRISES TREATING SAID SHAPED ARTICLE WITH AN AQUEOUS SOLUTION OR DISPERSION OF A MONOAZO DYESTUFF HAVING REACTIVE HYDROGEN ATOM AT A TEMPERATURE OF ABOUT 90*C. TO ABOUT 120*C. AT A PH OF ABOUT 5 TO ABOUT 10.

    CONCRETE MOLDING WITH IMPROVED ACID RESISTANCE
    5.
    发明专利
    CONCRETE MOLDING WITH IMPROVED ACID RESISTANCE 未知

    公开(公告)号：CA2093606A1

    公开(公告)日：1993-10-14

    申请号：CA2093606

    申请日：1993-04-07

    Applicant: HOECHST AG

    Inventor： BERG VOLKMAR ,  RINNO HELMUT

    IPC: C04B24/00 ,  C04B24/16 ,  C04B24/24 ,  C04B24/26 ,  C04B24/42 ,  C04B28/02 ,  C04B111/23 ,  E03F3/04 ,  E03F11/00 ,  C04B40/00

    Abstract: Concrete moldings with improved acid resistance Unreinforced or reinforced concrete moldings, for example concrete pipes, with improved corrosion resistance to acids and acidic sewage, improved permeation resistance to inorganic and organic liquids and gases and improved mechanical stability, produced by molding with machines, for example in press molding machines or extrusion machines or concrete pipe pressing machines, and allowing to harden plastic-viscous concrete mixtures of hydraulic inorganic binders, preferably cement, aggregates and water, where, in the preparation of the plastic-viscous concrete mixtures, to the latter has been added in a positive mixer an effective amount of an aqueous plastics dispersion based on anionic and hydrolysis-resistant copolymers of ethylenically unsaturated monomers, the minimum film forming temperature (MFT) of which is above the setting temperature of the concrete mixture, preferably above 23.degree.C. Use of the concrete moldings as concrete precast parts for many various applications, preferably as construction elements in building construction, road building, bridge building, civil engineering, in particular in sewage pipeline construction for underground sewer lines and service water lines.

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