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公开(公告)号：JPH04122430A
公开(公告)日：1992-04-22
申请号：JP24040890
申请日：1990-09-10
Applicant: KAO CORP
Inventor： IIZUKA MASANORI , MIZUNUMA TATSUYA , YAMATO FUJIOU , IZUMI TATSUO , FUKUSHIMA SHOICHI
Abstract: PURPOSE:To obtain an aqueous dispersion stabilizer for a fine particulate inorg. powder having good dispersibility and re-dispersibility by using a water-soluble polymer with a specific mean mol.wt. having a functional group selected from a sulfone group in its molecule. CONSTITUTION:An aqueous dispersion stability for a fine particulate inorg. powder with a mean particle diameter of 0.01-1.0mum is obtained by using a water-soluble polymer having one or more kind of a functional group selected from a sulfone group, a carboxyl group and a hydroxyl group in its molecule and characterized by that a mean MW is 2,000-50,000 and the content of a component with a mol.wt. of 1,000 or less is below 5wt.%. This aqueous dispersion stabilizer shows good dispersibility of a fine particulate inorg. powder and generates no sediment or hard cake during long-time preservation and also has good re-dispersibility.
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公开(公告)号：JPH0558694A
公开(公告)日：1993-03-09
申请号：JP21975791
申请日：1991-08-30
Applicant: KAO CORP
Inventor： MIZUNUMA TATSUYA , IIZUKA MASANORI , FUKUSHIMA SHOICHI
IPC: C04B24/26
Abstract: PURPOSE:To provide a cement dispersing agent effective for increasing the fluidity of concrete, mortar or paste compounded with hydraulic cement and improving the applicability and workability of the concrete, etc. CONSTITUTION:The objective cement dispersing agent is composed mainly of a polymer of a monomer having ethylenic phenol skeleton or a copolymer of the monomer and other copolymerizable monomer and having an average molecular weight of 1,000-50,000. The workability and the amount of entrained air of the concrete can be maintained at definite levels over a long period by the use of the cement dispersing agent of the present invention.
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公开(公告)号：JPH04254454A
公开(公告)日：1992-09-09
申请号：JP40912590
申请日：1990-12-28
Applicant: KAO CORP
Inventor： TSUJI AKITOSHI , FUKUSHIMA SHOICHI , MIZUNUMA TATSUYA
Abstract: PURPOSE:To provide the cement admixture which maintains the effect of eliminating the coarse bubbles entrained by a dispersant for concrete, mortar or cement paste which is a hydraulic cement compd. over a long period of time and can improve the application characteristic and workability of the cement or cement compd. CONSTITUTION:This cement admixture compsn. consists of an emulsion obtd. by adding the cement dispersant to an emulsion essentially consisting of dimethyl polysiloxane and subjecting this emulsion to a heating treatment. The cement admixture is obtd. by further using one or >=2 kinds of a water-insoluble polymer, water-soluble high polymer and foaming agent with the emulsion.
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Patent Agency Ranking
公开(公告)号：JPH04198050A
公开(公告)日：1992-07-17
申请号：JP32830290
申请日：1990-11-28
Applicant: KAO CORP
Inventor： TSUJI AKITOSHI , YAMATO FUJIO , KOJIMA TOSHIHARU , FUKUSHIMA SHOICHI , KITAGAWA KAZUE
Abstract: PURPOSE:To improve workability of concrete in a superhigh water-reducing region by mixing a specific formaldehyde addition-cocondensate with a water- insoluble copolymer and a water- -soluble polymer. CONSTITUTION:A cement admixture is obtained by blending (A) a cocondensate, containing compounds expressed by formula I (R is H or lower alkyl), formula II (X is H or alkali metal) and formula III or IV at (0.1-1.0):(0.1-1.0)-(0.1-1.0) molar ratio and prepared by addition-cocondensation with formaldehyde with (B) a copolymer of a 2-8C olefin and an ethylenically unsaturated dicarboxylic acid having 0.1-20mum average particle diameter and 500-5000 molecular weight or its polyvalent metallic salt and (C) one or more of cellulosic, synthetic or proteinaceous water-soluble polymers so as to provide 100:(0.5-20) weight ratio of the components (A) with (B) used together and 100:(0.01-5) weight ratio of the components (A) with (C) used in combination.
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公开(公告)号：JPH05294694A
公开(公告)日：1993-11-09
申请号：JP12274692
申请日：1992-04-15
Applicant: KAO CORP
Inventor： TSUJI AKITOSHI , FUKUSHIMA SHOICHI , KANZAKI SHOJI , KOJIMA TOSHIHARU
Abstract: PURPOSE:To provide the concrete additive capable of constantly maintaining the volume of air in the concrete with time. CONSTITUTION:The concrete additive comprises a granular substance having a granule diameter of 0.1-300mum. In the granule, a foaming agent component and a defoaming agent component are contained in the mixed state. A slightly water-soluble carboxylic acid type surfactant having carboxyl groups having an acid value of 90-400 is used as the foaming agent. A silicone polymer is employed as the deforming agent. A carboxylic acid surfactant or its salt is employed as the carboxylic acid type surfactant. The acid value of the carboxylic acid salt is the acid value of the carboxylic acid produced by converting the carboxylic acid salt into the acid. The slight water-solubility is defined as a solubility of
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公开(公告)号：JPH0558695A
公开(公告)日：1993-03-09
申请号：JP21975891
申请日：1991-08-30
Applicant: KAO CORP
Inventor： MIZUNUMA TATSUYA , IIZUKA MASANORI , FUKUSHIMA SHOICHI
IPC: C04B24/26
Abstract: PURPOSE:To provide a cement dispersing agent effective for increasing the fluidity of concrete, mortar or paste compounded with hydraulic cement and improving the applicability and workability of the concrete, etc. CONSTITUTION:The objective cement dispersing agent contains (A) a polymer of a monomer having ethylenic phenol skeleton or a copolymer of the monomer and other copolymerizable monomer and having an average molecular weight of 1,000-50,000 and (B) a copolymer of an olefin and an ethylenic unsaturated dicarboxylic acid and/or a scarcely water-soluble salt of the copolymer and having an average particle diameter of 0.1-50mum and an average molecular weight of 500-50,000 at a weight ratio (A)/(B) of 99.5/0.5 to 80/20. The workability and the amount of entrained air of the concrete can be maintained at definite levels over a long period by the use of the cement dispersing agent of the present invention.
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公开(公告)号：JPH05213643A
公开(公告)日：1993-08-24
申请号：JP1765492
申请日：1992-02-03
Applicant: KAO CORP
Inventor： FUKUSHIMA SHOICHI , MIZUNUMA TATSUYA , KANZAKI SHOJI , IZUMI TATSUO
Abstract: PURPOSE:To provide a cement dispersant capable of enhancing the strength of concrete, mortar or paste as a hydraulic blend. CONSTITUTION:This cement admixture consists of a compd. A having a phenol skeleton and polyol B in (80:20)-(99:1) weight ratio. Initial strength and strength over a long period of time imparted by the compd. A having a phenol skeleton are remarkably enhanced by combining the compd. A with the polyol B. This cement admixture enables the release of concrete from a mold in an early stage and can enhance the strength of concrete over a long period of time, that is, the durability.
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公开(公告)号：JPH04198051A
公开(公告)日：1992-07-17
申请号：JP32830390
申请日：1990-11-28
Applicant: KAO CORP
Inventor： KANZAKI SHOJI , IZUMI TATSUO , TSUJI AKITOSHI , KITAGAWA KAZUE , FUKUSHIMA SHOICHI
Abstract: PURPOSE:To improve workability of concrete in a superhigh water reducing region by mixing an aromatic sulfonic acid formalin condensate salt with a water-soluble polymer and, as necessary, a water-insoluble copolymer CONSTITUTION:A cement admixture is obtained by blending (A) an aromatic sulfonic acid formalin condensate salt having =20000 weight-average molecular weight with (B) a water-soluble polymer and, as necessary, (C) one or more of a copolymer of a 2-8C olefin and an ethylenically unsaturated dicarboxylic acid having 0.1-20mum average particle diameter and 500-5000 molecular weight or its polyvalent metallic salt so that the weight ratio of the components (A) to (B) used together may be 100:(0.01-5) and the weight ratio of the component (C) used together may be 100:(0.5-20) expressed in terms of the components [(A)-+(B)]:(C).
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