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公开(公告)号：JPH054845A
公开(公告)日：1993-01-14
申请号：JP16973991
申请日：1991-07-10
Applicant: KAO CORP
Inventor： YAMATO FUJIO , FUJITA SHUICHI , IZUMI TATSUO , YADOKORO YOSHIAKI , KITAGAWA KAZUE
Abstract: PURPOSE:To improve slump loss by using a cement admixture containing a co-condensate prepared by subjecting plural compound shown by specific general formulas and an amino-based polymerization terminator to addition co- condensation with formaldehyde. CONSTITUTION:Given amounts of compounds shown by formula I and formula II (R1 and R2 are 1-6C straight-chain or branched-chain alkyl; X is alkali metal) and an amino-based polymerization terminator shown by formula III, IV, V or VI (X2 and X3 are H, 1-3C alkyl, carboxyl, sulfone or alkali metal; Z1 is H, 1-3C alkyl, -CH2SO3M1 and M1 and M2 are H or alkali metal) are weighed, mixed with water and adjusted to proper concentration and pH. The solution is heated to about 80-90 deg.C, to which 0. 7-5 times as much formalin calculated as formaldehyde as the whole monomer is dripped. The compounds are subjected to addition co-condensation at pH 3-12 for a given time while stirring to give a co-condensate having 1,000-50,000 molecular weight. The co-condensate is used alone as a cement admixture or together with another admixture and mixed with cement.
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公开(公告)号：JPH04349159A
公开(公告)日：1992-12-03
申请号：JP12029591
申请日：1991-05-24
Applicant: KAO CORP
Inventor： FUJITA SHUICHI , YADOKORO YOSHIAKI , YAMATO FUJIO
IPC: C04B24/22
Abstract: PURPOSE:To provide a production of a cement dispersant. CONSTITUTION:This cement dispersant is produced by the following processes (1) and (2) in the production of the alkali metal salt of a naphthalenesulfonic acid-formalin condensate. (1) One mol of naphthalene is sulfonated with 1.12-1.17 mols of fuming sulfuric acid (expressed in terms of sulfuric acid). (2) Neutralization is carried out with the double salt consisting of one mol of sodium salt and 0.8-1.2 mols of potassium salt. As a result, the process for producing the dispersant is drastically simplified, and the cost is reduced. The dispersant has excellent dispersibility and is widely used in the field of ready-mixed cement, secondary products, etc.
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公开(公告)号：JPH0488095A
公开(公告)日：1992-03-19
申请号：JP20482890
申请日：1990-07-31
Applicant: KAO CORP
Inventor： YAMATO FUJIO , FUJITA SHUICHI , IZUMI TATSUO , YADOKORO YOSHIAKI , TANIGUCHI TAKAO
Abstract: PURPOSE:To obtain the subject stabilizer, containing a copolycondensate prepared by cocondensing a phenolsulfonate and phenol with formaldehyde under alkaline conditions and capable of dispersing coal powder in water, dispersing and stabilizing the coal powder in a state for enabling pipe line transportation. CONSTITUTION:The objective stabilizer containing a copolycondensate prepared by cocondensing phenolsulfonate and phenol in an amount of 4-30mol%, preferably 8-15mol% based on 1mol phenolsulfonate with formaldehyde under alkaline conditions.
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公开(公告)号：JPH03137045A
公开(公告)日：1991-06-11
申请号：JP27324989
申请日：1989-10-20
Applicant: KAO CORP
Inventor： YAMATO FUJIO , FUJITA SHUICHI , IZUMI TATSUO , YADOKORO YOSHIAKI
Abstract: PURPOSE:To provide the cement dispersant having high dispersibility by forming the dispersant of a copolycondensation product formed by cocondensation of phenol sulfonate and formaldehyde at alkaline side. CONSTITUTION:The cement dispersant is formed by using the copolycondensation product formed by cocondensating 4 to 30mol, more particularly 8 to 15mol formaldehyde per 1mol phenol sulfonate (sodium salt, potassium salt is suitable) for 5 to 15 hours at pH 7 to 9 as its essential component. The amt. of this dispersant to be added is 0.1 to 1.5W% of the solid content of the hydraulic cement compsn..
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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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Patent Agency Ranking
公开(公告)号：JPH01122947A
公开(公告)日：1989-05-16
申请号：JP28235487
申请日：1987-11-09
Applicant: KAO CORP
Inventor： IIZUKA MASANORI , YADOKORO YOSHIAKI , MIZUNUMA TATSUYA , OTANI SHOJI , FUKUDA MASAHIRO , MUROI YOSHIYUKI
IPC: C04B24/26
Abstract: PURPOSE:To obtain a cement admixture containing a copolymer composition obtained by polymerizing maleic anhydride with a copolymerizable and hydrophobic monomer in the presence of a vinyl based hydrophilic monomer and having prescribed average molecular weight as a main component and capable of efficiently preventing lowering of the flowability of a cement compound by adding to the cement compound. CONSTITUTION:Maleic anhydride is polymerized with a copolymerizable and hydrophobic monomer such as ethylene in a molar ratio of 1/2-2/1 in the presence of a vinyl based hydrophilic monomer to provide the cement admixture. The above-mentioned hydrophilic monomer is preferably blended in a ratio of 0.1-20mol.% based on the total monomer. As the hydrophilic monomer, especially (meth)acrylic acid is preferably used. The admixture obtained by the above-mentioned copolymerization has 5,000-50,000 weight-average mol.wt. and 0.05-50mum particle size. The method for adding the cement admixture to the cement compound includes e.g. dissolution to knead water and addition to the cement compound once kneaded.
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公开(公告)号：JPS61118130A
公开(公告)日：1986-06-05
申请号：JP24013684
申请日：1984-11-14
Applicant: Kao Corp
Inventor： IIZUKA MASANORI , MIZUNUMA TATSUYA , FUJIO AKIRA , YADOKORO YOSHIAKI
Abstract: PURPOSE: To eliminate the formation of deposits and hard cake when materials are reversed for a long time by preparing an aq. dispersion stabilizer of fine- particle silica powder with one or ≥2 kinds selected from 12 kinds of polycarboxylic acids or their salts.
CONSTITUTION: An aq. dispersion stabilizer of fine-particle silica powder is prepared from ≥1 kind selected from specified polycarboxylic acids (salts) such as a homopolymer of methacrylic acid, a copolymer of methacrylic acid and methacrylic ester, a copolymer of methacrylic acid, amide, and their esters, a copolymer of methacrylic acid and another copolymerizable hydrophilic monomer, and a copolymer of methacrylic acid and a copolymerizable hydrophobic monomer. Besides, a condensate of β-naphthalenesulfonic acid and formalin, polyvinyl alcohol, and polyvinyl pyrolidone are used jointly with the polycarboxylic acid (salt) as another process.
COPYRIGHT: (C)1986,JPO&JapioAbstract translation: 目的：为了消除材料通过制备水溶液长时间反转的沉积物和硬质饼的形成。 具有1种或2种选自12种多元羧酸或其盐的细颗粒二氧化硅粉末的分散稳定剂。 构成： 细粒二氧化硅粉末的分散稳定剂由选自指定的多元羧酸（盐）中的≥1种制备，例如甲基丙烯酸的均聚物，甲基丙烯酸和甲基丙烯酸酯的共聚物，甲基丙烯酸和酰胺的共聚物及其 酯，甲基丙烯酸和另一种可共聚的亲水单体的共聚物，以及甲基丙烯酸和可共聚的疏水性单体的共聚物。 此外，与多羧酸（盐）一起使用β-萘磺酸和福尔马林，聚乙烯醇和聚乙烯吡咯烷酮的缩合物作为另一种方法。
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公开(公告)号：JPS6016848A
公开(公告)日：1985-01-28
申请号：JP12130083
申请日：1983-07-04
Applicant: KAO CORP
Inventor： EJIRI YOSHIHIRO , YADOKORO YOSHIAKI , TSUSHIMA RIKIO
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公开(公告)号：JP2014125397A
公开(公告)日：2014-07-07
申请号：JP2012284540
申请日：2012-12-27
Inventor： TERAI HISATO , YADOKORO YOSHIAKI
Abstract: PROBLEM TO BE SOLVED: To provide an additive for a hydraulic composition capable of securing a favorable pumpability, of inhibiting a slump flow variation and an air volume variation before/after pumping, of ensuring a favorable workability, and of yielding a favorable post-cure freeze/melt resistance.SOLUTION: The provided additive for a hydraulic composition comprises: (A) a specified acrylic acid-based copolymer; (B) a specified acrylic acid ester-based copolymer; (C) a polyethylene glycol having a weight-average molecular weight of 9,000 or above and 18,000 or below; and (D) a polysaccharide derivative obtained by substituting hydrogen atoms of some or all hydroxyl groups of a polysaccharide or alkylated derivative or hydroxyalkylated derivative thereof with specified hydrophobic substituents and specified ionic hydrophilic groups.
Abstract translation: 要解决的问题：提供一种水硬性组合物的添加剂，其能够确保良好的泵送性，抑制泵送前后的坍落度流动变化和空气体积变化，确保良好的加工性，并且产生良好的后固化 冷冻/熔融阻力。解决方案：所提供的水硬性组合物添加剂包括：（A）特定的丙烯酸基共聚物; （B）指定的丙烯酸酯类共聚物; （C）重均分子量为9000以上且18,000以下的聚乙二醇; 和（D）通过用特定的疏水取代基和规定的离子性亲水基团取代多糖或其烷基化衍生物或其羟烷基化衍生物的一些或全部羟基的氢原子得到的多糖衍生物。
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公开(公告)号：JP2011116587A
公开(公告)日：2011-06-16
申请号：JP2009275292
申请日：2009-12-03
Inventor： TERAI HISATO , YAMAMURO HODAKA , YADOKORO YOSHIAKI
IPC: C04B24/32 , C04B24/26 , C04B24/30 , C04B28/02 , C08F299/02 , C08G65/332
Abstract: PROBLEM TO BE SOLVED: To provide an early strengthening agent for a hydraulic composition, the early strengthening agent improving an initial curing property (setting time, σ1 ) of a hydraulic composition, particularly, an ultrahigh strength concrete.
SOLUTION: The early strengthening agent for a hydraulic composition comprises a compound expressed by formula (1). In formula (1), R
1 and R
2 each independently represents a hydrogen atom or a methyl group; p1 represents a number of 0 to 2; q1 represents a number of 0 or 1; A
1 O represents a 2-3C oxyalkylene group; n1 represents an average additional molar number of A
1 O and represents a number of 6 to 300; and X
1 represents a hydrogen atom or a 1-3C alkyl group.
COPYRIGHT: (C)2011,JPO&INPITAbstract translation: 要解决的问题：为了提供水硬性组合物的早期强化剂，早期强化剂提高水硬性组合物，特别是超高强度混凝土的初始固化性（凝固时间，σ1）。 解决方案：用于水硬性组合物的早期增强剂包含由式（1）表示的化合物。 在式（1）中，R 1和R 2各自独立地表示氢原子或甲基; p1表示0〜2的数; q1表示0或1的数字; A表示2-3C氧化烯基团; n1表示A
1的平均附加摩尔数，表示6〜300的数; X 1表示氢原子或1-3C烷基。 版权所有（C）2011，JPO＆INPIT
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