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公开(公告)号：JPH0585788A
公开(公告)日：1993-04-06
申请号：JP24568691
申请日：1991-09-25
Applicant: KAO CORP
Inventor： YAMATO FUJIO , FUKUDA MASAHIRO , TAMAOKI RYOICHI
IPC: C04B24/32 , C04B24/22 , C04B24/30 , C04B28/02 , C04B103/32 , C04B111/62
Abstract: PURPOSE:To provide a self filling concrete composition having a superior prop erty to separation resistance of an aggregate, cement and water and capable of enhancing the consistency and the flowability of the concrete used as a building material and the secondary product material and unnecessitating tamp ing by vibration of a vibrator, etc. CONSTITUTION:In a concrete composition incorporating a high performance water reducing agent and a water soluble high polymer, a reaction product of an alkylene oxide addition product being added alkylene oxides of >=20mols to a primary alcohol having >=12 carbon atoms in the molecule, a primary mercaptan or an alkyl phenol with a compound >=1 epoxy group is used as the water soluble high polymer and also the self filling concrete composition is characterized by being >=50cm the slump flow value by JIS A 1101 concrete.
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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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公开(公告)号：JPH04332605A
公开(公告)日：1992-11-19
申请号：JP10423691
申请日：1991-05-09
Applicant: KAO CORP
Inventor： YAMATO FUJIO , TAMAOKI RYOICHI , FUKUDA MASAHIRO , IIZUKA MASANORI
Abstract: PURPOSE:To obtain a mold release agent superior in a reduction of surface foams and peeling properties, by a method wherein the mold release agent is constituted mainly of a liquid water-repellent substance and surface-active agent and specifies interfacial tension with water. CONSTITUTION:The title mold release agent is constituted mainly of a liquid water-repellent substance and a surface-active agent dissolving into the same, mineral oil or animal and vegetable oil or oils and fats or fatty acid or silicone oil are available as the water-repellent substance and interfacial tension with water is controlled to 5-20 dyne/cm by compounding of the surface-active agent. Although the surface-active agent is not limited especially, for example, an oil-soluble surface-active agent such as polyoxyethylene alkyl ether is preferable. Then, since a matter whose HLB is not exceeding 9 is used, an improvement in peeling properties is high, contamination of a concrete shuttering after demolding can be reduced remarkably.
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公开(公告)号：JPH04275961A
公开(公告)日：1992-10-01
申请号：JP3269891
申请日：1991-02-27
Applicant: KAO CORP
Inventor： YAMATO FUJIO , TAMAOKI RYOICHI , FUKUDA MASAHIRO , IIZUKA MASANORI
Abstract: PURPOSE:To improve the efficiency in injecting a hardener without decreasing the reference strength by mixing a specified amt. of a phosphoric acid salt into the cement admixture for the extra-high pressure jet injection process based on a naphthalenesulfonate-formalin condensate. CONSTITUTION:A naphthalenesulfonate-formalin condensate and a phosphate (e.g. sodium tripolyphosphate) are mixed to produce a cement admixture for the extra-high pressure jet injection process. In this case, 30-95 pts.wt. of the condensate and 70-5 pts.wt. of the phosphate are appropriately mixed. About 0.2-4wt.% of the admixture based on the cement in a cement-based hardener and expressed in terms of the effective component is added to the hardener such as portland cement and blast-furnace cement, hence higher fluidity is imparted to the hardener, and the effect in reducing the viscosity of the clay is improved.
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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：JPH04170353A
公开(公告)日：1992-06-18
申请号：JP29792690
申请日：1990-11-02
Applicant: KAO CORP
Inventor： YAMATO FUJIO , TAMAOKI RYOICHI , IIZUKA MASANORI
Abstract: PURPOSE:To obtain a concrete compsn. for self-filling having improved flowability, separation inhibiting characteristics and initial strength by mixing a high performance water-reducing agent with cement, fly ash and small aggregate in a specified weight ratio. CONSTITUTION:A high performance water-reducing agent such as a naphtha lenesulfonate-formaldehyde condensation product is mixed with cement (C), fly ash (F) and small aggregate (S) so as to satisfy conditions represented by equations I-II and a concrete compsn. for self-filling having >=55cm slump flow value stipulated by JIS-A1101 is produced. The proper amt. of the water-reducing agent used is 0.6-3 wt.% (expressed in terms of the effective component) of the amt. of the cement (C). The produced concrete compsn. unnecessitates compaction by vibration with a vibrator, etc., and is very effective in reducing noise and rationalizing production.
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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：JPH0421559A
公开(公告)日：1992-01-24
申请号：JP12376990
申请日：1990-05-14
Applicant: KAO CORP
Inventor： YAMATO FUJIO , IIZUKA MASANORI
IPC: C04B35/00 , C04B35/04 , C04B35/043 , C04B35/10 , C04B35/101
Abstract: PURPOSE:To enhance filling properties, bending strength, compressive strength, etc., of a refractory by blending a mixture of a specific nonionic surfactant with a cationic surfactant as an additive with raw materials for the refractory. CONSTITUTION:A mixture of 50-95 pts.wt. one or two or more compounds expressed by formulas I, II or III with 50-5 pts.wt. one or two or more compounds expressed by formula IV, V or VI is used as an additive for a refractory. In formula I, R1 is 8-18C straight-chain or branched primary or secondary hydrocarbon group and n is 3-50. In formula II, R2 is 6-12C hydrocarbon group and m is 3-50. In formula III, R3 is 12-18C hydrocarbon group and 11 and 12 are 1-10. In formulas IV, V and VI, R4, R5 and R6 are 10-18C hydrocarbon group and X is acid radical or halogen. The aforementioned additive is used in an amount within the range of about 0.5-5wt.% based on raw materials for the refractory.
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公开(公告)号：JPH03285856A
公开(公告)日：1991-12-17
申请号：JP8326590
申请日：1990-03-29
Applicant: KAO CORP
Inventor： IIZUKA MASANORI , MIZUNUMA TATSUYA , YAMATO FUJIO , TAMAOKI RYOICHI , TSUJI AKITOSHI
Abstract: PURPOSE:To obtain a mix reduced in retarding action and capable of keeping the flowability of concrete for a long time by adding a cement admixture containing copolymer of specific olefin and dicarboxylic acid, its hardly water- soluble salt and water-decreasing agent after kneading. CONSTITUTION:A cement admixture containing, as effective components, a copolymer of 2-8C olefin and ethylene unsaturated dicarboxylic acid or/and a hardly water-soluble salt of the copolymer in granular state and a water- decreasing agent for cement is used. This admixture is added, after kneading, to a kneaded material in which cement, water, and aggregate are mixed and kneaded. By this method, a fluidizing effect equal to that in the case of simultaneous addition at the time of kneading can be obtained by the additive quantity of about 70% based on that in the case of simultaneous addition mentioned above. As the above copolymer, e.g. an isobutylene.maleic anhydride copolymer (about 9000 molecular weight) powder is used.
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