公开(公告)号：JP2002201054A

公开(公告)日：2002-07-16

申请号：JP2000397071

申请日：2000-12-27

Applicant: KAO CORP

Inventor： YAMAGUCHI TAKASHI ,  KAWABE KUNIYASU ,  YAMATO FUJIO

IPC: E04B1/92 ,  B28B3/20 ,  C04B28/02 ,  C04B111/76 ,  E04C2/04

Abstract: PROBLEM TO BE SOLVED: To provide an inorganic building material excellent in frost damage resistance, and to provide a production method of the inorganic building material. SOLUTION: The inorganic building material and the production method of the inorganic material are as follows: a cement compound containing cement, a compound containing a thermoplastic resin powder whose glass transition temperature or melting point is 45-160 deg.C and whose volumetric average particle size is 10-250 μm and water are kneaded, and they are formed to the designated form, they are obtained by processing at the temperature more than the melting point of the thermoplastic resin powder.

公开(公告)号：JP2001322860A

公开(公告)日：2001-11-20

申请号：JP2000140375

申请日：2000-05-12

Applicant: KAO CORP

Inventor： YAMATO FUJIO ,  MIZUNUMA TATSUYA

IPC: E01C7/10 ,  B28C7/00 ,  C04B18/02 ,  C04B28/02 ,  C04B38/00 ,  C04B111/40

Abstract: PROBLEM TO BE SOLVED: To provide a cement-base pavement material which gives porous concrete having uniform adhesiveness of cement to coarse aggregate, uniform open cells and high strength. SOLUTION: This cement-base pavement material is formed by adhering cement powder to the coarse aggregate of 0.5 to 5 wt.% in the surface moisture measured by a method stipulated in JIS A 1125.

公开(公告)号：JP2001207181A

公开(公告)日：2001-07-31

申请号：JP2000015512

申请日：2000-01-25

Applicant: KAO CORP

Inventor： YAMATO FUJIO ,  SHIROTA KYOICHI ,  NAKAMURA KAZUHIRO

IPC: B28B7/38 ,  C10M101/00 ,  C10M125/04 ,  C10M133/08 ,  C10M135/14 ,  C11D1/72

Abstract: PROBLEM TO BE SOLVED: To obtain a mold releasing agent for a concrete, capable of improving the surface appearance of a concrete product. SOLUTION: A mold-releasing agent for the concrete, containing a high-early- strengthening agent is coated on a molding box. The resultant molding box is charged with a concrete composition, and the concrete composition is hardened.

公开(公告)号：JP2001106559A

公开(公告)日：2001-04-17

申请号：JP28590599

申请日：1999-10-06

Applicant: KAO CORP

Inventor： HAMADA DAISUKE ,  YAMATO FUJIO ,  MIZUNUMA TATSUYA ,  ICHIKAWA HIROTSUGU

IPC: C04B24/02 ,  C04B24/26 ,  C04B24/32 ,  C04B28/02 ,  C04B103/30 ,  C04B103/32 ,  C04B103/40 ,  C04B103/48

Abstract: PROBLEM TO BE SOLVED: To prepare an admixture for a hydraulic composition by which coarse large air bubbles are reduced even in the presence of a fixed amount of taken-in air and a hardened body such as concrete having excellent surface appearance is obtained and which is good in preservation stability. SOLUTION: This admixture contains (A) a polymer or copolymer obtained by polymerizing an ethylenically unsaturated carboxylic acid having a polyoxyalkylene group, a (meta)allyl alcohol and their derivatives and (B) a mixture containing oxyalkylene compounds 1-3 of formula I by specified ratios.

公开(公告)号：JP2000143315A

公开(公告)日：2000-05-23

申请号：JP31916898

申请日：1998-11-10

Applicant: KAO CORP

Inventor： SHIMODA MASARO ,  YAMATO FUJIO

IPC: C04B24/06 ,  C04B24/10 ,  C04B24/26 ,  C04B28/00 ,  C04B28/02 ,  C04B103/20 ,  C04B111/70 ,  C09K3/00

Abstract: PROBLEM TO BE SOLVED: To obtain an additive for hydraulic composition, excellent in viscosity- reducing properties against fireclay and persistency thereof, and satisfying the standard strength (the strength after 28 days is 30 kg/cm2). SOLUTION: This additive for a hydraulic composition comprises (A) a water- soluble salt of a polymer or a copolymer obtained by polymerizing one or more kinds of monomers selected from a group consisting of an unsaturated monocarboxylic acid and an unsaturated dicarboxylic acid, and (B) one or more kinds of compounds selected from a group consisting of an oxycarboxylic acid or a salt thereof, a sugar, and a sugar alcohol. The weight ratio of the components (A)/(B) is regulated so as to be (97/3)-(20/80).

公开(公告)号：JP2000086315A

公开(公告)日：2000-03-28

申请号：JP25241598

申请日：1998-09-07

Applicant: KAO CORP

Inventor： SHIBA DAISUKE ,  SHIMODA MASARO ,  YAMATO FUJIO

IPC: C04B24/26 ,  C04B40/00 ,  C04B103/32 ,  C08F290/06 ,  C08L33/02 ,  C08L35/00 ,  C08L55/00

Abstract: PROBLEM TO BE SOLVED: To provide an additive combinedly having a high flowability-imparting property to hydraulic compositions and an improved clay viscosity-imparting property, satisfying a standard strength, and useful for the hydraulic compositions. SOLUTION: This additive for hydraulic compositions comprises (I) a copolymer (II) a polymer in a I/II weight ratio of 5/95 to 95/5. (I) A vinylic copolymer containing 2-3C polyoxyalkylene groups (average addition mole number: 2-300) in the molecule and having a weight-average mol.wt. of 5,000-500,000. (II) A polymer having a mol.wt. of 1,000-20,000 and prepared by copolymerizing one or more monomers of the formula [R1 is hydrogen atom or methyl group; R2, R3 are each hydrogen atom, methyl group or M2O(CO)(CH2)m1; M1, M2 are each hydrogen atom, an alkali metal, an alkaline earth metal, ammonium, or a mono-, di-or tri-alkylammonium which may be substituted by a hydroxyl group; (m1) is an integer of 0-2].

公开(公告)号：JP2000073061A

公开(公告)日：2000-03-07

申请号：JP24480298

申请日：1998-08-31

Applicant: KAO CORP

Inventor： YAMATO FUJIO ,  MIZUNUMA TATSUYA ,  ISHII YASUO

IPC: E02D3/00 ,  C09K17/14 ,  C09K103/00

Abstract: PROBLEM TO BE SOLVED: To obtain the subject improving agent capable of exhibiting excellent compacting property without depending on kinds of earth and sand by including adduct of a higher fatty acid or a higher alcohol. SOLUTION: This improving agent comprises ethylene oxide (1-50 mol) and propylene oxide (1-30 mol) adduct of a 7-24C higher fatty acid or higher alcohol (preferably the higher alcohol). The adduct is preferably a compound of the formula [R is a 10-16C alkyl; EO is oxyethylene; PO is oxypropylene; (l), (m) and (n) are each 1-10]. It is preferable that preferably >=50 wt.%, further preferably >=80 wt.%, especially preferably substantially all of the improving agent comprises the above adduct of the formula. An amount of the improving agent added to earth and sand is preferably 0.001-2 pts.wt. based on 100 pts.wt. of earth and sand. Thereby, excellent compacting property can be expected without being limited by kinds of earth and sand and qualities, amounts, etc. of organic substances contained in earth and sand.

公开(公告)号：JPH11171621A

公开(公告)日：1999-06-29

申请号：JP33673797

申请日：1997-12-08

Applicant: KAO CORP

Inventor： YAMATO FUJIO ,  KONO YOSHINAO ,  YADOKORO YOSHIAKI

IPC: C04B24/26 ,  C04B103/60

Abstract: PROBLEM TO BE SOLVED: To produce a concrete excellent in promotion of strength of a hardened product at low temperatures by adding a water-soluble vinyl copolymer having a specific composition and a hydroxycarboxylic acid (salt) to a hydraulic cement and hardening the cement at a specified temperature. SOLUTION: A copolymer prepared by copolymerizing a monomer represented by formula [R1 and R2 are each H or methyl group; m1 is 0-2; AO is a 2-3C oxyalkylene group; (n) is 30-300; X is H or a 1-3C alkyl group] with one or more monomers of compounds represented by formulae II and III [R3 to R5 are each H, methyl group or (CH2 )m2 COOM2 ; R6 is H or methyl group; M1 , M2 and Y are each H, an alkali (alkaline earth) metal, ammonium or a (substituted) alkylammonium; m2 is 0-2] in (1/100) to (100/100) molar ratio is compounded with a 4-10C hydroxycarboxylic acid or its salt in (100/1) to (100/50) weight ratio and the resultant composition in an amount of 0.02-3.0 wt.% based on a cement is then added thereto to harden the cement.

公开(公告)号：JPH10158047A

公开(公告)日：1998-06-16

申请号：JP31616696

申请日：1996-11-27

Applicant: KAO CORP

Inventor： YAMATO FUJIO

IPC: C04B24/38 ,  B28B3/20 ,  C04B28/02 ,  C04B103/44

Abstract: PROBLEM TO BE SOLVED: To reduce the die pressure of a cylinder in a forming machine and to improve shape holding property and surface smoothness of a forming plate by substituting specified hydrophobic substituents and ionic hydrophilic substituents for hydrogen atoms in a part or whole hydroxyl groups in polysaccharides, alkylated or hydroxyalkylated deriv. of these. SOLUTION: Polysaccharides or alkylated or hydroxyalkylated derivs. of these are brought into the reaction with 10 to 40C alkyl or alkenylglycidylether, 10 to 40C straight chain, branched-chain (un)satd. alkyl epoxy, halide, halohidrin, acylhalide or 10 to 40C acryl group ester or acid anhydride in the presence of alkali to introduce hydrophobic substituents having 10 to 40C alkyl groups or alkenyl groups. Then one or more kinds of ionic hydrophilic substituents selected from among sulfonate groups, carboxyl groups, phosphate groups and sulfate groups are introduced.

公开(公告)号：JPH09132445A

公开(公告)日：1997-05-20

申请号：JP29266795

申请日：1995-11-10

Applicant: KAO CORP

Inventor： YAMATO FUJIO ,  IZUMI TATSUO

IPC: C04B24/26 ,  C08F20/26 ,  C08F22/20 ,  C08F290/00 ,  C08F290/06 ,  C08F299/02

Abstract: PROBLEM TO BE SOLVED: To provide a concrete admixture producing an excellent effect on the fluidity of such a hydraulic composition as cement paste, mortar and concrete and on the fluidity retention. SOLUTION: This concrete admixture contains the homopolymer of a dicarboxylic acid-base monomer A added with 2-300 mols of a 2-3C oxyalkylene group on average or the copolymer of the monomer A added with 2-300 mols of a 2-3C oxyalkylene group on average and a dicarboxylic acid-base monomer B as the essential component.