CEMENT DISPERSANT
    2.
    发明专利

    公开(公告)号:CA1222530A

    公开(公告)日:1987-06-02

    申请号:CA441327

    申请日:1983-11-16

    Applicant: KAO CORP

    Abstract: Cement Dispersant The cement dispersant comprises a macromolecular lignosulfonic acid or a salt thereof. It may be a composition which comprises (a) said macromolecular lignosulfonic acid or a salt thereof and (b) a condensate of beta-naphthalenesulfonic acid and formaldehyde or a salt thereof. It prevents the slump loss in the cement composition.

    5.
    发明专利
    未知

    公开(公告)号:DE3000245A1

    公开(公告)日:1980-07-31

    申请号:DE3000245

    申请日:1980-01-05

    Applicant: KAO CORP

    Abstract: AE concrete or AE mortar is prepared by incorporating in a cement composition (A) a high-range water-reducing agent for concrete and (B) a foaming substance selected from products obtained by reaction between an alpha , beta -unsaturated dicarboxylic acid having 4 to 12 carbon atoms or an anhydride thereof and an alkene having 6 to 18 carbon atoms and salts thereof.

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