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公开(公告)号：JPH06296849A
公开(公告)日：1994-10-25
申请号：JP8704793
申请日：1993-04-14
Applicant: KAO CORP
Inventor： YAMATO FUJIO , FUJITA SHUICHI , YADOKORO YOSHIAKI , SATO HARUYUKI
Abstract: PURPOSE:To improve thickening properties with the lapse of time due to lack of dispersion and enhance the glossiness and color development by using a co-condensation product obtained by the addition condensation of a chemical compound expressed by a specific formula and at least, one type of chemical compound selected from among chemical compounds expressed by specific formulae using formaldehyde, as an essential component. CONSTITUTION:A dispersant for inorganic pigment contains a co-condensation product obtained by the addition condensation of a chemical compound expressed by formula A and at least, one type of chemical compound selected from among chemical compounds expressed by formulae B/D, using formaldehyde. In the formulae RO1 is a 2-3C oxyalkylene group; n is an integer of 1-100; R1, R2 is H or a 1-9C alkyl group; each of X1, X2 is H, a sulfone group or its alkali metal salt; Y is H or CH2SO3Z (Z is an alkali metal salt). At least, two of Y are H. In addition, this formaldehyde co-condensation product is of a three-dimensional molecular structure, and is adsorbed by a pigment particle to enhance the steric repulsion force, dispersion force and dispersion stability.
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公开(公告)号：JPH06279082A
公开(公告)日：1994-10-04
申请号：JP7155893
申请日：1993-03-30
Applicant: KAO CORP
Inventor： YAMATO FUJIO , FUJITA SHUICHI , YADOKORO YOSHIAKI , SATO HARUYUKI
IPC: C04B24/26 , C08F290/00 , C08F299/02
Abstract: PURPOSE:To increase high fluidity and high foam retention by adding a copolymer from specific monomers to concrete composition. CONSTITUTION:Propylene oxide(PO) and ethylene oxide(EO) are alternately added to acrylic or methacrylic acid to prepare component (A) one or more selected from compounds of formula I (R1, R2 are hydrogen, methyl; PO is C3 oxyalkylene; EO is C2 oxyalkylene; m1 is 0 to 2; n1 is 1 to 10; n2 is 10 to 50; n3 is 1 to 10; X is H, 1-3 C alkyl). Then, component (B) is selected from compounds of formula II (R3 is H, methyl; M3 is H, monovalent metal, ammonium, (substituted) amino; R4 and R5 are (CH2)m2COOM3, H, methyl; m2 is 0 to 2). Finally, the components A and B are polymerized into a copolymer of 1,000 to 1,000,000 weight-average molecular weight as a concrete admixture.
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公开(公告)号：JPH06183803A
公开(公告)日：1994-07-05
申请号：JP33824592
申请日：1992-12-18
Applicant: KAO CORP
Inventor： YAMATO FUJIO , KOJIMA TOSHIHARU , FUJITA SHUICHI
Abstract: PURPOSE:To provide a cement admixture containing, as the essential ingredient, a condensate of specific general formula, capable of improving the fluidity of hydraulic compositions such as cement paste, mortar and concrete and their fluidity sustainability. CONSTITUTION:The cement admixture containing, as the essential ingredient, a condensate of the general formula (AO is 2-3C oxyalkylene group; n is an integer of 1-100; X is a monovalent or divalent metal, ammonium, amino or substituted amino; m is an integer of 3-500). This admixture is excellent in dispersion characteristics and slump preservability, being low in cure-retarding effect. This admixture may be incorporated with (A) a cement dispersant such as a naphthalenesulfonic acid-formaldehyde condensate, melaminesulfonic acid- formaldehyde condensate, or polycarboxylic acid or eater thereof or salt thereof and/or (B) a cement water reducing agent consisting mainly of anilinesulfonic acid.
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公开(公告)号：JPH0578157A
公开(公告)日：1993-03-30
申请号：JP24320891
申请日：1991-09-24
Applicant: KAO CORP
Inventor： FUJITA SHUICHI , YAMATO FUJIO , KANZAKI SHOJI , IIZUKA MASANORI
IPC: C04B24/22
Abstract: PURPOSE:To obtain a water-soluble salt of a naphthalenesulfonic acid formaldehyde high condensate having a sharp molecular weight distribution and to improve more excellently fluidity of cement composition with this cement dispersant than a conventional naphthalene-based cement dispersant. CONSTITUTION:In production of a cement dispersant comprising a water-soluble salt of a naphthalenesulfonic acid formaldehyde high condensate, a sulfonated substance from which unreacted naphthalene in naphthalenesulfonic acid is removed by extraction using a naphthalene dissolving solvent is condensed with formaldehyde to produce a cement dispersant. In production of the cement dispersant from the water-soluble salt of a naphthalenesulfonic acid formaldehyde high condensate, when naphthalenesulfonic acid is condensed with formaldehyde, water for condensation is added to the sulfonated substance in such a way that the amount of unreacted naphthalene in naphthalenesulfonic acid is
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公开(公告)号：JPH0517189A
公开(公告)日：1993-01-26
申请号：JP16564191
申请日：1991-07-05
Applicant: KAO CORP
Inventor： YAMATO FUJIO , FUJITA SHUICHI , IZUMI TATSUO , YADOKORO YOSHIAKI , KITAGAWA KAZUE
Abstract: PURPOSE:To obtain a cement admixture capable of reducing slump loss caused in a hydraulic cement composition by using a formaldehyde adduct cocondensate of 3-5 components composed of specific compounds as a component. CONSTITUTION:A formaldehyde adduct cocondensate of 3-5 components compose. of compounds expressed by formulas I, II and/or III and IV and/or V is used as a component of a cement admixture. In the formula, R denotes H or lower alkyl; X denotes alkali metal; X1 denotes H, alkyl, carboxyl or its alkali metallic salt, sulfone group or its alkali metallic salt, OH or methoxy group; Y denotes carboxyl group or its alkali metallic salt, sulfone group or its alkali metallic salt; groups Z denote H or -CH2SO3X (X denotes alkali metal), provided that at least two of the groups Z denote H. The formaldehyde adduct cocondensate to be used has a three-dimensional molecular structure and it is presumed that the slump loss can be reduced thereby.
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Patent Agency Ranking
公开(公告)号：JPH0436108B2
公开(公告)日：1992-06-15
申请号：JP8899384
申请日：1984-05-02
Applicant: KAO CORP
Inventor： KUNIKAWA KENZO , FUJITA SHUICHI
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公开(公告)号：JPH0492841A
公开(公告)日：1992-03-25
申请号：JP20652490
申请日：1990-08-03
Applicant: KAO CORP
Inventor： IZUMI TATSUO , YADOKORO YOSHIAKI , YAMATO FUJIO , FUJITA SHUICHI , KANZAKI SHOJI
IPC: C04B24/22
Abstract: PURPOSE:To steeply improve workability of concrete in ultra-high water- reducing region by using an aromatic formalin sulfonate condensate having a fixed molecular weight as a principal component. CONSTITUTION:The aimed cement dispersant is composed of an aromatic formalin sulfonate condensate as a principal component. Said condensate has >=2X10 weight-average molecular weight and contains molecular weight. Furthermore, said aromatic sulfonic acid is composed of naphthalenesulfonic acid, alkylnaphthalenesulfonic acid or melaminesulfonic acid, etc.
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公开(公告)号：JPH0412038A
公开(公告)日：1992-01-16
申请号：JP11377090
申请日：1990-04-27
Applicant: KAO CORP
Inventor： YAMATO FUJISAKURA , FUJITA SHUICHI , IZUMI TATSUO , YADOKORO YOSHIAKI
Abstract: PURPOSE:To eliminate occurrence of deposition and precipitation of crystals in storage at low temperatures and facilitate handling by containing K salt and Na salt of phenolsulfonic acid adduct or condensate with formaldehyde in a specific proportion. CONSTITUTION:The aforementioned dispersant composition contains an adduct or condensate of phenolsulfonic acid in which sulfonic acid group containing the acid radical thereof forming Na salt or K salt is introduced thereinto with formaldehyde and the state thereof is an aqueous solution. The above-mentioned composition is obtained by neutralizing the sulfonic acid group in the above- mentioned molecule with a neutralizing agent composed of NaOH/KOH at (1/0.2)-(1/5) molar ratio.
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公开(公告)号：JPH03257053A
公开(公告)日：1991-11-15
申请号：JP5564490
申请日：1990-03-07
Applicant: KAO CORP
Inventor： IZUMI TATSUO , YADOKORO YOSHIAKI , YAMATO FUJIO , FUJITA SHUICHI
Abstract: PURPOSE:To enhance the slump loss-preventive properties of cement composition by utilizing the oxidative copolymer of both naphthalenesulfonic acid (salt), alkyl naphthalenesulfonic acid (salt) and an aromatic compd. contg. a hydrophilic group as the essential component of a cement dispersant. CONSTITUTION:(a) Naphthalenesulfonic acid, alkyl naphthalenesulfonic acid, formalin condensate thereof or salts thereof arc allowed to react with (b) an aromatic compd. having a hydrophilic group by oxidative polymerization. A slump loss-prevention type cement dispersant is produced by incorporating the obtained oxidative copolymer as an essential component. As the component (b), a benzene derivative and a naphthalene derivative are shown which have one or more kinds of hydrophilic group such as hydroxyl group, carboxyl group, amino group and sulfo group. The oxidative copolymer is obtained by oxidative polymerization reaction due to metallic oxide such as e.g. permanganate.
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公开(公告)号：JP2001302317A
公开(公告)日：2001-10-31
申请号：JP2000126111
申请日：2000-04-26
Applicant: KAO CORP
Inventor： FUJITA SHUICHI , YAMATO FUJIO , TSUJI AKITOSHI , MORII YOSHIKAZU
IPC: B28B1/20 , B28C7/04 , C04B24/22 , C04B24/26 , C04B28/02 , C04B103/32 , C04B111/56 , C08F220/00 , C08F228/02 , C08F290/06 , C08L33/02 , C08L41/00 , C08L55/00
Abstract: PROBLEM TO BE SOLVED: To provide a centrifugally cast concrete production process which enables a large reduction in the amount of sludge discharged in a centrifugal casting stage of concrete. SOLUTION: This production process has a stage for charging concrete which comprises cement and a polymer containing 2-3C polyoxyalkylene groups into a form wherein an aromatic sulfonic acid-based formalin condensation product is added to the concrete in the form when the concrete is charged into the form and/or after completion of the charging.
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