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公开(公告)号：NO175974C
公开(公告)日：1995-01-11
申请号：NO891601
申请日：1989-04-19
Applicant: KAO CORP
Inventor： MIZUNUMA TATSUYA , TAMAKI RYOICHI , KANZAKI SHOJI , TANISHO YOSHIAKI , YAMATO FUZIO
Abstract: An aqueous dispersant composition for cement comprises 100 parts by weight of a copolymer of an olefin having 2 to 8 carbon atoms and an ethylenically unsaturated dicarboxylic anhydride, the copolymer being in the form of fine particles having an average size of 0.1 to 20 micrometers, 15 to 300 parts by weight, as zinc, of zinc oxide or zinc hydroxide and water, the composition being adjusted to have a pH value of 6 to 12.
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公开(公告)号：CA1331633C
公开(公告)日：1994-08-23
申请号：CA596752
申请日：1989-04-14
Applicant: KAO CORP
Inventor： MIZUNUMA TATSUYA , TAMAKI RYOICHI , KANZAKI SHOJI , TANISHO YOSHIAKI , YAMATO FUZIO
Abstract: An aqueous dispersant composition for cement comprises 100 parts by weight of a copolymer of an olefin having 2 to 8 carbon atoms and an ethylenically unsaturated dicarboxylic anhydride, the copolymer being in the form of fine particles having an average size of 0.1 to 20 micrometers, 15 to 300 parts by weight, as zinc, of zinc oxide or zinc hydroxide and water, the composition being adjusted to have a pH value of 6 to 12. The composition has a property to prolong the workability of hydraulic cement compositions prepared by mixing water, hydraulic cement, sand, gravel and so on. The composition does not lose its property even after being stored for a long period of time.
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公开(公告)号：JP2001212813A
公开(公告)日：2001-08-07
申请号：JP2000025311
申请日：2000-02-02
Applicant: KAO CORP
Inventor： YAMATO FUJIO , MIZUNUMA TATSUYA
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a concrete structure on which a letter, a figure and the like can be accurately formed. SOLUTION: A method for manufacturing a concrete structure has a process for placing concretes containing mortar of 10-30 seconds flow down time and 250-350 mm flow value, which are measured by a specific method, into a from on which a sheet containing a curing-retarding agent is lined in a required shape.
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公开(公告)号：JPH08319427A
公开(公告)日：1996-12-03
申请号：JP13054095
申请日：1995-05-29
Applicant: KAO CORP
Inventor： TANAKA SHINGO , MIZUNUMA TATSUYA , TAMAOKI RYOICHI
Abstract: PURPOSE: To obtain an emulsifier which has a function of emulsifying asphalt in an emulsified asphalt and lowers in or loses this function as a result of being formed into a resin after the emulsion is applied. CONSTITUTION: An emulsifier for asphalt, which comprises a water-soluble prepolymer having a function of emulsifying asphalt and being capable of forming a resin by polymerization, wherein the prepolymer lowers in a function of emulsifying asphalt when formed into a resin, is provided.
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公开(公告)号：JPH06305805A
公开(公告)日：1994-11-01
申请号：JP10100993
申请日：1993-04-27
Applicant: KAO CORP
Inventor： IZUMI TATSUO , CHO TAKESHI , YAMAMURO HODAKA , MITOBE HIROYUKI , MIZUNUMA TATSUYA
Abstract: PURPOSE:To increase the resistance to aggregate separation by adding a molecular chain-branched glucan of a specific molecular weight and high-performance water-reducing agent to a hydraulic powder. CONSTITUTION:Cement such as Portland cement or a mixture thereof with fly ash of 3000m /g fineness is used to prepare a hydraulic powder. Then, the hydraulic powder is combined with 0.05 to 5wt.% of beta-1,3-or beta-1,4-glucan having beta-1,6-linkage side chain of the formula of 3000,000 to 5,000,000 molecular weight and 0.3 to 3.0wt.% of high-performance water-reducing agent such as phenolsulfonic acid-formaldehyde condensate or polycarboxylic acid copolymer. Further, when needed, a slowly releasing dispersant, water-reducing AE agent, plasticizer, setting retarder and other cement additives are admixed and kneaded to give the objective hydraulic composition having 60-70cm slump flow value and high aggregate separation resistance.
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Patent Agency Ranking
公开(公告)号：JPH06127987A
公开(公告)日：1994-05-10
申请号：JP28418792
申请日：1992-10-22
Applicant: KAO CORP
Inventor： IZUMI TATSUO , YADOKORO YOSHIAKI , IKEGUCHI MASAAKI , MIZUNUMA TATSUYA
Abstract: PURPOSE:To improve quality stability by specifying the sum of fine powder and cement to a specific volumetric ratio to the concrete compsn. and compounding the concrete compsn. so as to have a prescribed sp. gr. and slump flow value. CONSTITUTION:The concrete compsn. is obtd. by compounding >=1 kinds of fine powders (P) among blast furnace slag, fly ashes, silica fumes and stone powder, cement (C) and lightweight aggregate in such a manner that (P)/(C)X100 attains 24 to 65wt.% and further, adding and kneading a high-performance water-reducing agent, such as condensation product of naphthalene sulfonate and formaldehyde, water and a water-soluble high polymer, such as polyethylene glycol, to make the viscosity of the water 10 to 300 centipoises to and with the resulted mixture. The sum of the cement and fine powders of such concrete compsn. occupies 16 to 28vol.% of the total concrete compsn., the sp. gr. thereof is
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公开(公告)号：JPH06115995A
公开(公告)日：1994-04-26
申请号：JP27014292
申请日：1992-10-08
Applicant: KAO CORP
Inventor： MIZUNUMA TATSUYA , IZUMI TATSUO , CHO TAKESHI , YAMAMURO HODAKA
Abstract: PURPOSE:To secure the high flowability, high chargeability, high aggregate separation resistance and high strength of the concrete composition by adding a high performance water-reducing agent and a specific water-soluble polymer. CONSTITUTION:A naphthalene sulfonate metal salt-formaldehyde condensation product, a melamine sulfonate metal salt-formaldehyde condensation product, etc., are used as the high performance water-reducing agent to be an effective component in an amount of 0.3-3.0wt.% based on a cement. The water-soluble polymer includes acrylic acid, alkylene oxide, amide, cellulosic beta-glucan, starchy, polymers and polyol polymers. The water-soluble polymer has an average particle diameter of 1-300mum and is added to the concrete composition in an amount of 0.01-2.0wt.%. Other cement additives such as an air-carrying agent and a gypsum anhydride strength-enhancing agent can further simultaneously be used. The use of the composition gives a slump flow value of >=40cm. The cement mixed with the cement additive can be cured by a conventional method, and a steam curing method or an autoclave curing method may also be used.
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公开(公告)号：JPH0692710A
公开(公告)日：1994-04-05
申请号：JP23812492
申请日：1992-09-07
Applicant: KAO CORP
Inventor： IZUMI TATSUO , YADOKORO YOSHIAKI , IKEGUCHI MASAAKI , MIZUNUMA TATSUYA
Abstract: PURPOSE:To provide the building material which has an excellent viscosity, flow property and sepn. resistance and does not require tamping and the compsn. for secondary product materials by compounding lightweight aggregate with the compsn., compounding cement and fine powder at specific ratios and specifying the sp. gr. and slump flow value of the compsn. CONSTITUTION:This compsn. is the concrete compsn. contg. a high-performance water-reducing agent, cement, fine powder and lightweight aggregate. The compsn. satisfies the conditions (1) the weight of the fine powder/the weight of the cement X100=24 to 65wt.%, (2) (the volume of the fine powder + the volume of the cement)/(the total weight of the concrete compsn.) X100=16 to 28vol.%, (3) the sp. gr. of the concrete compsn. is =55cm slump flow value specified in JIS(Japanese Industrial Standards) A1101. The excellent self-packability, high flow property, aggregate sepn. resistance and initial hardness are assured by using such compsn.
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公开(公告)号：JPH0561217B2
公开(公告)日：1993-09-03
申请号：JP12211185
申请日：1985-06-05
Applicant: KAO CORP
Inventor： OCHI KOSUKE , KUROSAKA KIMIO , MIZUNUMA TATSUYA , IZUMI TATSUO
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公开(公告)号：JPH01122948A
公开(公告)日：1989-05-16
申请号：JP28235587
申请日：1987-11-09
Applicant: KAO CORP
Inventor： IIZUKA MASANORI , MIZUNUMA TATSUYA , KANZAKI SHOJI , KOJIMA TOSHIHARU , YADOKORO YOSHIAKI
Abstract: PURPOSE:To obtain the above concrete composition containing a cement admixture containing a sustained release agent consisting of maleic anhydride copolymer and water-reducing agent such as sulfonated melamine resin type at a prescribed weight ratio, having improved processability and workability as well as good compacting properties. CONSTITUTION:The aimed composition consisting of coarse aggregate, fine aggregate, cement, water and admixture is constituted as follows: The composition is composed of a sustained release agent A consisting of maleic anhydride copolymer having 500-50,000 weight-average mol.wt. and one or more water- reducing agent B such as naphthalene sulfonic acid formaldehyde high condensation type. The cement admixture containing the above-mentioned sustained release agent A and water-reducing agent B at a solid content weight ratio of 2:98-20:80 is added to the cement at an amount of 0.1-2.0pts.wt. (as solid content) based on 100pts.wt. cement, provided that water-cement ratio is 28-45%, feed air amount is =400kg/cm .
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