公开(公告)号：JPH08218064A

公开(公告)日：1996-08-27

申请号：JP2905795

申请日：1995-02-17

Applicant: KAO CORP

Inventor： YAMATO FUJIO ,  MIZUNUMA TATSUYA

IPC: C09K17/14 ,  C09K17/22 ,  C09K103/00

Abstract: PURPOSE: To provide an improving agent containing a specific polymer water-soluble salt as a main component and further polyethylene glycol, good in the compacting property, rapid in stabilization, excellent in efficiency for compacting sandy soil, enabling labor saving, and capable of shortening a time required for construction. CONSTITUTION: This improving agent comprises (A) one or more kinds of the water-soluble salts of the homopolymers and copolymers of (i) an unsaturated monocarboxylic acid [preferably (meth)acrylic acid] and (ii) an unsaturated dicarboxylic acid (preferably maleic acid, fumaric acid, itaconic acid), and (B) polyethylene glycol (preferably having a mol.wt. of 5000-500000). The components A and B are preferably used in an A/B weight ratio of (5-95)/(95-5), and the objective improving agent is preferably used in an amount of e.g. 0.01-1 pt.wt. based on the weight of earth and sand.

公开(公告)号：JPH08176546A

公开(公告)日：1996-07-09

申请号：JP33706494

申请日：1994-12-27

Applicant: KAO CORP

Inventor： YAMATO FUJIO ,  MIZUNUMA TATSUYA

IPC: E02D3/00 ,  C09K17/14 ,  C09K17/32 ,  C09K103/00

Abstract: PURPOSE: To obtain an earth and sand compaction improver which mainly comprises sorbitol or the like and a surfactant and shows a prescribed surface tension when they are dissolved in water, and is useful in civil engineering and construction works because it can shorten the job period and improves the compaction of earth and sand and is improved in filling properties and improves power saving. CONSTITUTION: This compaction improver mainly comprises (A) sorbitol or dextrin and (B) a surfactant among sorbitan fatty acid esters such as sorbitan laurate and shows a surface tension of 14-45dyne/cm as its aqueous solution. The weight ratio of the components A/B preferably ranges within (10-90)/(90-10).

公开(公告)号：JPH08134477A

公开(公告)日：1996-05-28

申请号：JP26943394

申请日：1994-11-02

Applicant: KAO CORP

Inventor： YAMATO FUJIO ,  SHIMODA MASARO ,  KITAGAWA KAZUE ,  FUJITA SHUICHI ,  SATO HARUYUKI

IPC: C10L1/18 ,  C10L1/188 ,  C10L1/32 ,  C10L10/18

Abstract: PURPOSE: To provide a dispersion stabilizer which not only has excellent dispersing power to enable transportation of a high-concentration slurry, but has excellent long-term stability to improve storage stability. CONSTITUTION: The stabilizer comprises either a formaldehyde co-condensate of at least one aromatic compound containing 1-300mol of 2-3C oxyalkylene groups and at least one carboxylated aromatic compound or a neutral salt of the co-condensate as an essential component.

公开(公告)号：JPH0826800A

公开(公告)日：1996-01-30

申请号：JP16362794

申请日：1994-07-15

Applicant: KAO CORP

Inventor： YAMATO FUJIO ,  KITAGAWA KAZUE ,  SHIMODA MASARO ,  FUJITA SHUICHI ,  SATO HARUYUKI

IPC: C04B24/22 ,  C04B24/30 ,  C08L61/04 ,  C08L61/14

Abstract: PURPOSE:To obtain the cement admixture for improving the fluidity of a hydraulic composition and the set retarding property by using the cocondensate of polyoxyalkylenealkyl phenol and a substance condensable with formaldehyde or its neutralized salt as the main component of the admixture. CONSTITUTION:The cocondensate of one or >=2 kinds of compds. shown by the formula and a substance condensable with formaldehyde or its neutralized salt is used as the main component of the cement admixture. In the formula, R1 is a 1-3C straight or branchedchain alkyl, AO is a 2-3C oxyalkylene group, and (n) is an integer of 30 to 100. The compd. shown by the formula is polyoxyalkylenealkylphenol, and the addition product of 100-300 mols of an oxyalkylene group to phenol, cresol, ethylphenol, etc., is exemplified. A benzene ring derivative or a naphthalene ring derivative is preferably used as the cocondensable substance.

公开(公告)号：JPH0812396A

公开(公告)日：1996-01-16

申请号：JP3339995

申请日：1995-02-22

Applicant: KAO CORP

Inventor： YAMATO FUJIO ,  KITAGAWA KAZUE ,  SATO HARUYUKI ,  FUJITA SHUICHI ,  SHIMODA MASARO

IPC: C04B24/16 ,  C04B24/26 ,  C04B28/02 ,  C04B103/32 ,  C08F220/04 ,  C08F222/00 ,  C08F222/02 ,  C08F290/00 ,  C08F290/06

Abstract: PURPOSE:To improve hardening time, to eliminate the delay of demolding time and to facilitate job schedule control by allowing an admixture to consist of a copolymer obtained by polymerizing a specific monomer and one or more kinds of monomers selected between two kinds of compounds. CONSTITUTION:The copolymer having the weight-average molecular weight of 1000-500000 is obtained by polymerizing the monomer (a) of a dehydrogenation reaction product of a one terminal alkyl blocked polyalkylene glycol expressed by formula I (each of R1 and R2 is hydrogen or methyl, M1 is 0-2, AO is a 2-3C oxyalkylene, (n) is 50-100 and X is H or a 1-3C alkyl) with (metha)acrylic acid or a fatty acid, or an ethylene oxide or propylene oxide adduct (the mol number of adduct part is 50-100) to this dehydrogenation reaction product and one or more kinds of the monomers (b) selected from the compounds expressed by formula II and III (each of R3-R5 is H, methyl or (CH2)m2COOM2, R6 is H or methyl, each of M1, M2 and Y is an alkali metal, alkaline earth metal, ammonium, an alkylammonium and m2 is 0-2) in the reaction unit of (a)/(b)=1/99-80/20 (mol ratio).

公开(公告)号：JPH0725651A

公开(公告)日：1995-01-27

申请号：JP13027893

申请日：1993-06-01

Applicant: KAO CORP

Inventor： YAMATO FUJIO ,  MORIYAMA NOBORU

IPC: C04B24/26

Abstract: PURPOSE:To obtain an admixture showing excellent effects of fluidity, flow retaining properties and foam retention of a hydraulic composition such as concrete, etc., comprising a copolymer containing specific two kinds of (meth) acrylic acid-based monomers and an acrylic acid-based monomer or an unsaturated dicarboxylic acid monomer. CONSTITUTION:A concrete admixture comprises a copolymer obtained by copolymerizing a compound of formula I or formula II with a compound of formula III as an essential component. In the formula, R1 to R5 are H or methyl; R6 and R7 are group of formula TV, H or methyl; m1 to m3 are 0-2; n1 and n3 is 4-100; X1 and X2 are H or 1-3C alkyl; AO is 2-4C oxyalkylene group; SO is oxystyrene group; M1 and M2 are H, monovalent metal, ammonium group, amino group or substituted amino group. This concrete admixture takes balance of hydrophilic nature/hydrophobic nature of dispersant and surface mixing properties into account and styrene oxide is added to the root of ester or end of ethylene oxide and the copolymer is made hydrophobic and to strengthen foams and to stabilize foams.

公开(公告)号：JPH06340459A

公开(公告)日：1994-12-13

申请号：JP23134193

申请日：1993-09-17

Applicant: KAO CORP

Inventor： YAMATO FUJIO ,  FUJITA SHUICHI ,  YADOKORO YOSHIAKI ,  SATO HARUYUKI

IPC: C04B24/22 ,  C04B24/30 ,  C04B103/40

Abstract: PURPOSE:To obtain a cement dispersing agent capable of eliminating transportation trouble by pumping because there is no slump loss over a long time. CONSTITUTION:This cement dispersing agent is a formaldehyde cocondensation produce of one or more kinds selected from aromatic compounds obtained by introducing 1-100mol 2-3C oxyalkylene group and one or more kinds selected from materials cocondensable with formaldehyde and has sulfonate group or sulfomethyl group in the cocondensation product.

公开(公告)号：JPH06298557A

公开(公告)日：1994-10-25

申请号：JP8331593

申请日：1993-04-09

Applicant: KAO CORP

Inventor： YAMATO FUJIO ,  FUJITA SHUICHI ,  YADOKORO YOSHIAKI ,  SATO HARUYUKI

IPC: C04B24/26

Abstract: PURPOSE:To improve fluidity, fluidity retention, foaming properties and foaming retention and to facilitate quality control, comprising a copolymer prepared by polymerizing specific three kinds of compounds. CONSTITUTION:(A) A monomer of formula I (R1-2 are H or methyl; m1 is 0-2; n1 is 1-100; x1 is H or 1-3C alkyl; x1 is H or 1-3C alkyl) having 1-100 ethylene oxide addition mols on the average is polymerized with (B) a monomer of formula II (R3-4 is H or methyl; m2 is 0-2; n2 is 1-50; x2 is H or 1-3C alkyl) having 1-50 propylene oxide addition mols on the average and (C) an acrylic acid-based or unsaturated dicarboxylic acid-based monomer of formula III [R5 is H or methyl; R6-7 is (CH2)m3COOM4, H or methyl; m3 is 0-2; M3-4 are H, monovalent metal ammonium, amino or substituted amino] in the ratio of (A)/(B)/(C)=10-90/1-30/10-90 with water in a nitrogen atmosphere at pH9 at about 60 deg.C to give a copolymer having 1,000-1,000,000 weight-average molecular weight.

公开(公告)号：JPH06157100A

公开(公告)日：1994-06-03

申请号：JP31013692

申请日：1992-11-19

Applicant: KAO CORP

Inventor： SATO HARUYUKI ,  KOJIMA TOSHIHARU ,  YAMATO FUJIO

IPC: C04B24/24 ,  C04B24/26 ,  C04B24/28 ,  C08G59/14

Abstract: PURPOSE:To provide a cement admixture capable of raising cement slurry fluidity, excellent in slump retentivity, consisting mainly of a copolymer from each specific epoxy compound, polyalkylene glycol monoester and acrylic acid- based monomer and/or unsaturated dicarboxylic acid-based monomer. CONSTITUTION:The cement admixture consist mainly of a crosslinked polymer produced by copolymerization between (A) a monomer of formula I (X is O-R1-O or (O-R2)n-O; R1 is 1-10C alkylene or aromatic ring; R2 is R2 is 2-4C alkylene; n is 2-100), (B) a second monomer of formula II (R3 and R4 are each H, methyl, etc.; AO is 2-3C oxyalkylene group; m1 is 0-2; n1 is 3-500; X1 is H or 1-3C alkyl), and (C) monomer(s) of formula III and/or IV (R5 and R8 are each H or methyl; R6, R7, R9 and R10 are each H, methyl, etc.; M3 is H, monovalent metal, ammonium, etc.; M4 is divalent metal).

公开(公告)号：JPH06135756A

公开(公告)日：1994-05-17

申请号：JP28765092

申请日：1992-10-26

Applicant: KAO CORP

Inventor： YAMATO FUJIO ,  KOJIMA TOSHIHARU ,  KANZAKI SHOJI ,  KITAGAWA KAZUE ,  SATO HARUYUKI

IPC: C04B24/00

Abstract: PURPOSE:To obtain a hydraulic compsn. having high fluidity, large separation resistance and high packing efficiency by controlling the compsn. to have specified ranges of slump flow value and specific gravity and incorporating foams of surfactant soln. CONSTITUTION:The hydraulic compsn. consists of a binder such as cement, aggregate such as gravel, and other lightweight aggregate. The average size of foams of surfactant soln. is 1-1000mum. and the size is controlled by controlling compressed air from a frothing machine. The surfactant to be used is not limited for ioninc property or structure. The concn. for use is not limited but it is preferable that the surface tension of the soln. be 14-45dyn/cm. The mixed at. of foams to the hydraulic compsn. is determined as the volume of foams so as to obtain 1.50-2.00 specific gravity of the compsn. As for the surfactant, esters of alkyl fatty acid, etc., in a single or mixture state of two or more kinds may be used. Foams of the surfactant soln. are added after each material is brought into contact with water. The slump flow value of the obtd. compsn. is >45cm.