2.
    发明专利
    未知

    公开(公告)号:BR7408253A

    公开(公告)日:1975-10-14

    申请号:BR825374

    申请日:1974-10-04

    Applicant: HOECHST AG

    Abstract: The properties of mortar and concrete are improved by the addition to the fresh mortar or concrete of an aqueous dispersion of a plastic obtained by the emulsion polymerization of olefinically unsaturated monomers, and of a polycondensate of formaldehyde and an amino-s-triazine modified with sulfite or sulfonic acid. A well-balanced relation between the compressive strength, the tensile strength in bending, and the adhesion to aged and hardened mortar or concrete is thus obtained.

    10.
    发明专利
    未知

    公开(公告)号:DK203981A

    公开(公告)日:1981-11-10

    申请号:DK203981

    申请日:1981-05-07

    Applicant: HOECHST AG

    Abstract: A molding composition on the basis of polyvinyl alcohol substantially consists of a partially solvolyzed graft copolymer of a vinyl ester and a polyethylene glycol or of a mixture of such graft copolymer with a partially solvolyzed polyvinyl ester as well as of water and optionally a polyhydric alkanol. The composition is obtained by mixing the granular polymers used in each case with the other components. It is water-soluble, flowable and thermoplastically workable and is suitable for the preparation of any shaped articles, especially sheets.

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