CEMENT DISPERSANT
    6.
    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.

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