公开(公告)号：JP2007077357A

公开(公告)日：2007-03-29

申请号：JP2005270182

申请日：2005-09-16

Applicant: Kao Corp ,  花王株式会社

Inventor： SHIMODA MASARO ,  KONO YOSHINAO ,  YADOKORO YOSHIAKI ,  HAMAI TOSHIMASA ,  HAMADA DAISUKE

IPC: C08F299/02 ,  C04B24/12 ,  C04B24/26 ,  C08F2/44

Abstract: PROBLEM TO BE SOLVED: To provide a method which can stably manufacture a dispersant for a hydraulic composition exhibiting superior dispersing effect and viscosity reducing effect to a hydraulic composition, on an industrially practical level with good reproducibility. SOLUTION: The phosphate-based polymer suitable for the dispersant for a hydraulic composition is obtained by mixing a specified monomer 1 having a polyoxyalkylene group, a phosphoric acid monoester-based monomer 2, and a phosphoric acid diester-based monomer 3, adjusting the pH of the resultant mixture to 7 or lower and copolymerizing the monomers in the presence of a sulfonic acid-based chelating agent. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种可以在工业实用的水平上以良好的再现性稳定地制造用于水硬性组合物显示出优异的分散效果和降低粘度的作用的水硬性组分分散剂的方法。 解决方案：适用于水硬性组合物的分散剂的磷酸酯类聚合物是通过混合具有聚氧化烯基的特定单体1，磷酸单酯类单体2和磷酸二酯类单体3而获得的， 将所得混合物的pH调节至7以下，并在磺酸类螯合剂存在下使单体共聚。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006104480A

公开(公告)日：2006-04-20

申请号：JP2005320865

申请日：2005-11-04

Applicant: Kao Corp ,  花王株式会社

Inventor： HAMADA DAISUKE ,  HAMAI TOSHIMASA ,  SHIMODA MASARO ,  YADOKORO YOSHIAKI ,  KONO YOSHINAO ,  MORII YOSHIKAZU ,  NAKA YOSHIHITO

IPC: C08F290/06 ,  C04B24/26 ,  C04B28/02

Abstract: PROBLEM TO BE SOLVED: To provide a method of producing a dispersant for a hydraulic composition on an industrially practical level which is capable of imparting excellent dispersibility and effects for reducing the viscosity to a hydraulic composition. SOLUTION: The phosphoric ester polymer is obtained by copolymerizing a specific monomer (1) having a polyoxyalkylene group, a phosphoric monoester monomer (2), and a phosphoric diester monomer (3), in which a weight-average molecular weight is 10,000-150,000, and a ratio (Mw/Mn) of a weight-average molecular weight (Mw) to number-average molecular weight (Mn) is 1.0-2.6. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 解决的问题：提供一种在工业实用水平上制备用于水硬性组合物的分散剂的方法，其能赋予优异的分散性和降低水硬性组合物的粘度的效果。 解决方案：磷酸酯聚合物通过使具有聚氧化烯基的特定单体（1），磷酸单酯单体（2）和磷酸二酯单体（3）共聚获得，其中重均分子量为 10,000〜150,000，重均分子量（Mw）与数均分子量（Mn）的比（Mw / Mn）为1.0〜2.6。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2592494B2

公开(公告)日：1997-03-19

申请号：JP9750188

申请日：1988-04-20

Applicant: KAO CORP

Inventor： MIZUNUMA TATSUYA ,  TAMAOKI RYOICHI ,  KANZAKI SHOJI ,  YADOKORO YOSHIAKI ,  YAMATO FUJIO

IPC: C04B24/26 ,  C04B22/06 ,  C04B28/02

公开(公告)号：JPH07223852A

公开(公告)日：1995-08-22

申请号：JP10109994

申请日：1994-05-16

Applicant: KAO CORP

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

IPC: C04B24/16 ,  C04B24/26 ,  C04B24/32 ,  C04B103/32 ,  C04B103/40 ,  C08F290/00 ,  C08F290/06 ,  C08L57/00

Abstract: PURPOSE:To obtain a concrete admixture providing excellent slump retaining properties for many hours, comprising a copolymer of a specific polyalkyelne glycol monoester-based monomer and an unsaturated organic acid-based monomer as an essential component. CONSTITUTION:(A) A monomer of formula I (R1 and R2 each is H or methyl; m1 is 0-2; AO is a 2-3C oxyalkylene; (n) is 110-300; X is H or a 1-3C alkyl) is copolymerized with (B) one or more monomers (e.g., acrylic acid or allylsulfonic acid) selected from compounds of formula II and formula III [R3 to R5 each is H, methyl, (CH2)m2 or COOM2; R6 is H or methyl; M1, M2 and Y each is H, an alkali metal, an alkaline earth metal, ammonium, an alkylammonium or a substituted alkylammonium; m2 is 0-2]. The prepared copolymer is contained as an essential component to produce a concrete admixture. Methoxypolyethylene glycol may be cited as the concrete example of the monomer of formula I.

公开(公告)号：JPH06321596A

公开(公告)日：1994-11-22

申请号：JP11443793

申请日：1993-05-17

Applicant: KAO CORP

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

IPC: C04B24/26

Abstract: PURPOSE:To provide a concrete admixture facilitating the quality control of concrete with small variations in the air quantity and fluidity of concrete for a long time, containing, as the essential ingredient, a copolymer prepared by copolymerization between a specific polyethylene-polypropylene glycol monoester (of formula A or B) and an acrylic acid monomer or unsaturated dicarboxylic acid monomer (of formula C). CONSTITUTION:The objective concrete admixture containing, as the essential ingredient, a copolymer prepared by copolymerization between (1) a compound of formula A (symbols in the formula are common with those in formulas B and C; R1-R5 are each H or methyl; R6 and R7 are each (CH2)m3COOM2, H or methyl; m1-m3 are each 0-2; n1 and n4 are each 1-10; n2 and n3 are each 4-50; X1 and X2 are each H or 1-3C alkyl; M1 and M2 are each H, monovalent metal, NH4, NH2 or substituted amino group) or formula B and (2) a compound of formula C at a weight ratio of (10-99): (90-1) (this proportion is suitable for the foam stability of the resultant concrete.). The weight-average molecular weight of this copolymer is preferably 1000-1000000. The amount of the admixture to be added to concrete is preferably 0.02-1.0wt.%, on a solid basis, based on cement.

公开(公告)号：JPH0692703A

公开(公告)日：1994-04-05

申请号：JP6609992

申请日：1992-03-24

Applicant: KAO CORP

Inventor： KITAGAWA KAZUE ,  IZUMI TATSUO ,  YADOKORO YOSHIAKI ,  IKEGUCHI MASAAKI

IPC: C04B24/26 ,  C04B28/02 ,  C08F220/06 ,  C08F290/00 ,  C08F299/02

Abstract: PURPOSE:To suppress slump loss and to improve strength or durability by using a polymer or its metallic salt obtained from a monomer such as a specific glycol monoester, acrylic acid, etc., and a slow releasing dispersing agent as essential components. CONSTITUTION:This admixture contains (1) the copolymer and/or its metallic salt obtained by polymerizing the polyalkylene glycol monoester monomer having unsaturated bond and the acrylic acid monomer and/or an unsaturated carboxylic acid monomer and (2) the slow releasing dispersing agent as the essential components. The admixture extremely increases the effect of the pressurized sending work of cement by a pump, is effective in keeping flowability and preventing material separation and is improved in the strength or the durability of concrete after hardening.

公开(公告)号：JPH05238797A

公开(公告)日：1993-09-17

申请号：JP4336792

申请日：1992-02-28

Applicant: KAO CORP

Inventor： IZUMI TATSUO ,  YADOKORO YOSHIAKI ,  KITAGAWA KAZUE ,  IKEGUCHI MASAAKI

IPC: C04B24/26 ,  C04B28/04 ,  C08F290/00 ,  C08F299/02

Abstract: PURPOSE:To provide the cement admixture effective for improving the dispersibility, suppressing a slump loss and improving strength and durability to a cement compsn. by consisting this admixture of a copolymer of a polyalkylene glycol diester monomer having an unsatd. bond and a dicarboxylic acid-based monomer having an unsatd. bond and/or the metal salt thereof. CONSTITUTION:This cement admixture consists of the copolymer of (1) the polyalkylene glycol diester monomer having the unsatd. bond and (2) the dicarboxylic acid-based monomer having the unsatd. bond and/or the metal salt of this copolymer. The monomer (1) includes, for example, the monomer expressed by formula I. In the formula, R , R , R , R denote hydrogen, methyl group, (CH2)m3COOM , [(CH2)m4COO]2M , etc.; AO denotes 2 to 3C oxyalkylene group; m1 to m4 denote an integer from 0 to 2; n1 denotes an integer from 3 to 500; M denotes hydrogen, univalent metal, ammonium group, amino group or substd. amino group; M denotes a bivalent metal.

公开(公告)号：JPH05238796A

公开(公告)日：1993-09-17

申请号：JP4336592

申请日：1992-02-28

Applicant: KAO CORP

Inventor： IZUMI TATSUO ,  YADOKORO YOSHIAKI ,  KITAGAWA KAZUE ,  IKEGUCHI MASAAKI

IPC: C04B24/22 ,  C04B24/26 ,  C08F20/10 ,  C08F220/04 ,  C08F220/06 ,  C08F220/28 ,  C08L33/04 ,  C08L33/14

Abstract: PURPOSE:To provide the cement admixture effective for improving the dispersibility, suppressing a slump loss and improving strength and durability to a cement compsn, by consisting this admixture of a copolymer of a polyalkylene glycol diester monomer having an unsatd. bond and an acrylic acid-based monomer and/or the metal salt thereof. CONSTITUTION:This cement admixture consists of the copolymer of (1) the polyalkylene glycol diester monomer having the unsatd. bond and (2) the acrylic acid-based monomer and/or the metal salt of this copolymer. The monomer (1) is exemplified by the monomer of formula I and the monomer (2) is exemplified by the monomers of formulas II and III. In the formulas I to III, R , R , R , R denote hydrogen, methyl group, (CH2)m3COOM , etc.; AO denotes 2 to 3C oxyalkylene group; m1-3 denote an integer from 0 to 2; n1 denotes an integer from 3 to 500; M denotes hydrogen, univalent metal, amino group, etc.; R R denote hydrogen, methyl group; X denotes a univalent metal, ammonium group, amino group, etc.; X denotes a bivalent metal.

公开(公告)号：JPH05105495A

公开(公告)日：1993-04-27

申请号：JP26751991

申请日：1991-10-16

Applicant: KAO CORP

Inventor： IZUMI TATSUO ,  YADOKORO YOSHIAKI ,  IKEGUCHI MASAAKI ,  KITAGAWA KAZUE

IPC: C04B24/22 ,  C04B28/04

Abstract: PURPOSE:To provide a mixing agent for superstiff-consistency concrete which is used for an instantaneously demoldable concrete product, rolled-compression concrete pavement(RCCP) and rolled-compression dam construction (RCD) and to provide a method for superstiff-consistency concrete with the mixing agent used therefor. CONSTITUTION:Condensate having >=20,000 weight average molecular weight is obtained by separating the condensate of aromatic sulfonic acid with formaldehyde by a polymer separation membrane. The objective mixing agent for superstiff-consistency concrete is constituted of this condensate as a main component. Unit water quantity is reduced even for superstiff-consistency concrete whose slump becomes 0cm by using the agent of this invention. The secular change in compaction properties is made small. Moreover, strong wet penetration action is held for a long time. Therefore, the agent of this invention is effectively used as the one for instantaneously demoldable concrete pursuing high-degree compaction properties and for rolled-compression concrete necessitating maintenance of compaction properties.

公开(公告)号：JPH054846A

公开(公告)日：1993-01-14

申请号：JP16564291

申请日：1991-07-05

Applicant: KAO CORP

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

IPC: C04B24/22 ,  C04B24/30 ,  C08G14/06

Abstract: PURPOSE:To improve slump loss by using a cement admixture containing a co-condensate prepared by subjecting plural compound shown by specific general formulas and melamine and/or urea to addition co-condensation with formaldehyde. CONSTITUTION:Given amounts of (A) a compound shown by formula I and (B) a compound shown by formula II (R is H or lower alkyl; X is alkali metal) and (C) melamine shown by formula III (Y is H or CH2SO3X) and/or (D) urea shown by formula IV (at least two of Y are H) are weighed, mixed with water and adjusted to proper solid content concentration and pH. The solution is heated to about 80-90 deg.C, to which formalin corresponding to a given amount of formaldehyde is dripped. The compounds are subjected to addition co- condensation at pH 7-11 while stirring to give a co-condensate having a constituent molecular ratio of (A)/(B)/[(C)+(D)]=0.1-1.0/0.1-1.0/0.1-1.0 and 1,000-50,000 molecular weight. The co-condensate is used alone as a cement admixture or together with another admixture and mixed with cement.