公开(公告)号：JP2001239513A

公开(公告)日：2001-09-04

申请号：JP2000051181

申请日：2000-02-28

Applicant: KAO CORP

Inventor： FUJITA SHUICHI ,  MORII YOSHIKAZU ,  TSUJI AKITOSHI ,  YAMATO FUJIO

IPC: B01F17/52 ,  B28B1/20 ,  C04B28/02 ,  C04B111/56

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a centrifugal product capable of decreasing sludge discharged in centrifugal molding. SOLUTION: A dispersant is added to concrete charged into a centrifugal molding form, centrifugal molding is executed, and the centrifugal product is obtained.

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：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：JPH05293350A

公开(公告)日：1993-11-09

申请号：JP9800092

申请日：1992-04-17

Applicant: KAO CORP

Inventor： YAMATO FUJIO ,  FUJITA SHUICHI

IPC: B01F17/12 ,  B01J13/00 ,  C01F11/46

Abstract: PURPOSE:To prepare a water-soluble salt of naphthalenesulfonic acid- formaldehyde condensate having an effective distribution width of mol.wt. by effecting condensation reaction under such conditions that no unreacted naphthalene remains in condensation system in the production process of a dispersant for a gypsum-water slurry. CONSTITUTION:A dispersant for gypsum-water slurry consisting of a water-soluble salt of naphthalenesulfonic acid-formaldehyde condensate in produced. In the condensation reaction of naphthalenesulfonic acid-formaldehyde, water for condensation is added to the sulfonic acid in a manner that the amt. of unreacted naphthalene in the naphthalenesulfonic acid is

公开(公告)号：JPH04345612A

公开(公告)日：1992-12-01

申请号：JP11867391

申请日：1991-05-23

Applicant: KAO CORP

Inventor： IZUMI TATSUO ,  FUJITA SHUICHI ,  YADOKORO YOSHIAKI ,  KITAGAWA KAZUE

IPC: C08G14/06

Abstract: PURPOSE:To facilitate the formation of the title condensate having an excellent stability and a specified molecular weight (distribution) by (co)condensing a compound selected from among a phenol (derivative), a melamine (derivative) and urea with HCHO at a specified pH by using a specified shortstop. CONSTITUTION:At least one compound selected from among a phenol (derivative), a melamine (derivative) and urea (e.g. phenol and urea) is (co)condensed with HCHO at a pH of 3-12 in the presence of an amine shortstop (e.g. sulfanilic acid).

公开(公告)号：JPH0436109B2

公开(公告)日：1992-06-15

申请号：JP23415586

申请日：1986-10-01

Applicant: KAO CORP

Inventor： OCHI KOSUKE ,  MIZUNUMA TATSUYA ,  KUROSAKA KIMIO ,  IZUMI TATSUO ,  FUJITA SHUICHI

IPC: C04B24/22 ,  C08G16/00 ,  C08G16/02

公开(公告)号：JPH04108648A

公开(公告)日：1992-04-09

申请号：JP22587390

申请日：1990-08-28

Applicant: KAO CORP

Inventor： IZUMI TATSUO ,  YADOKORO YOSHIAKI ,  YAMATO FUJIO ,  FUJITA SHUICHI

IPC: C04B28/02

Abstract: PURPOSE:To obtain high strength concrete by producing concrete in the region of extremely highly reduced water content by using, as a cement dispersing agent, a highly condensed condensation product of aromatic sulfonic acid with formaldehyde or its salt and also using an admixture in combination with the above. CONSTITUTION:Concrete is produced in the region of extremely highly reducing water content, where the ratio of water/(cement + admixture) is 12-30%, by combinedly using blended cement, an admixture mentioned later, a condensation product of aromatic sulfonic acid with formaldehyde composed essentially of a high condensation product, in which the content of the salt of the condensation product of aromatic sulfonic acid with formaldehyde having =20000 or its salt. As the above condensation product of aromatic sulfonic acid with formaldehyde or its salt, e.g. a condensation product of naphthalenesulfonic acid, melaminesulfonic acid, etc., with formaldehyde or its salt can be cited. As the admixture, e.g. fly ash, cylinder ash, clinker ash, blast furnace slag, silica fume, etc., can be cited.