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公开(公告)号:CA1224813A
公开(公告)日:1987-07-28
申请号:CA457363
申请日:1984-06-25
Applicant: KAO CORP
Inventor: IIZUKA MASANORI , TANAKA HIDEKI
Abstract: This invention provides a cement additive comprising a copolymer of an olefin having 2 to 8 carbon atoms with an ethylenically unsaturated dicarboxylic acid anhydride and a cement additive comprising the copolymer and a water-reducing agent. The cement additive of this invention can prevent the lowering of the fluidity, or slump loss of a hydraulic cement mix such as concrete, mortar, or paste with the lapse of time and provide improved applicability and workability.
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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
Inventor: OKADA EISABURO , KUROSAKA KIMIO , SATOH MASAHARU , TANAKA HIDEKI , FUJIU AKIRA
IPC: C04B24/18
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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公开(公告)号:JPS635346B2
公开(公告)日:1988-02-03
申请号:JP12433983
申请日:1983-07-08
Applicant: KAO CORP
Inventor: IIZUKA MASANORI , TANAKA HIDEKI
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公开(公告)号:JPS60151286A
公开(公告)日:1985-08-09
申请号:JP318184
申请日:1984-01-11
Applicant: KAO CORP
Inventor: IIZUKA MASANORI , TANAKA HIDEKI , TAN HIDEKAZU
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公开(公告)号:JPS5992954A
公开(公告)日:1984-05-29
申请号:JP20141282
申请日:1982-11-17
Applicant: KAO CORP
Inventor: OKADA EIZABUROU , KUROSAKA KIMIO , SATOU MASAHARU , TANAKA HIDEKI , FUJIO AKIRA
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公开(公告)号:JPS5992953A
公开(公告)日:1984-05-29
申请号:JP20141182
申请日:1982-11-17
Applicant: KAO CORP
Inventor: OKADA EIZABUROU , KUROSAKA KIMIO , SATOU MASAHARU , TANAKA HIDEKI , FUJIO AKIRA
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公开(公告)号:JPS6210951B2
公开(公告)日:1987-03-09
申请号:JP15742983
申请日:1983-08-29
Applicant: KAO CORP
Inventor: IIZUKA MASANORI , TANAKA HIDEKI
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公开(公告)号:JPS62104B2
公开(公告)日:1987-01-06
申请号:JP20141182
申请日:1982-11-17
Applicant: KAO CORP
Inventor: OKADA EIZABURO , KUROSAKA KIMIO , SATO MASAHARU , TANAKA HIDEKI , FUJIO AKIRA
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公开(公告)号:JPS6016851A
公开(公告)日:1985-01-28
申请号:JP12433983
申请日:1983-07-08
Applicant: KAO CORP
Inventor: IIZUKA MASANORI , TANAKA HIDEKI
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公开(公告)号:JPS598656A
公开(公告)日:1984-01-17
申请号:JP11455982
申请日:1982-07-01
Applicant: Kao Corp
Inventor: TSUJI AKITOSHI , TANAKA HIDEKI , HORIBATAKE NOBORU
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