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81. 发明专利

JPH06100346A ADMIXTURE FOR CONCRETE 失效
公开(公告)号：JPH06100346A
公开(公告)日：1994-04-12
申请号：JP24923892
申请日：1992-09-18
申请人： KAO CORP
发明人： YAMATO FUJIO , TAMAOKI RYOICHI
IPC分类号： C04B24/20 , C04B24/26 , C08K5/42 , C08L33/02 , C08L35/00 , C08L71/02
摘要： PURPOSE:To reduce air bubbles by mixing a copolymer synthesized through polymerization of plural monomers each represented by a specified formula and/or its metal salt and a compound of a specified formula as the essential components. CONSTITUTION:A copolymer having 1000 to 1000000 weight-average molecular weight and/or its metal salt is obtained by polymerizing 10 to 99wt.% unsaturated bond-containing polyalkylene glycol monoester-based monomer represented by formula I [R3 to R4 are each H, methyl, (CH2)m2CO2M, formula II, etc.] and 90 to 1wt.% acrylic acid-and/or unsaturated dicarboxylic acid-based monomer represented by formula III or IV (AO is a 2 to 3C oxyalkylene; R5 and R8 are each H or methyl; R6 to R7 and R9 to R10 are each H, methyl, (CH2)m7 CO2M5; (m1 to m7) is each 0 to 2; (n1 to n5) is each 3 to 500; M3 and M5 are each H, a univalent metal, etc.; M4 and M6 are a divalent metal; X1 to X5 is H or a 1 to 3C alkyl]. As admixtures for concrete, the resultant copolymer and a compound represented by formula V (R1 to R2 are each H or a 8 to 18C alkyl; M1 to M2 are each an alkaline metal) are blended with cement respectively in an amount of 0,10 to 1.0wt.% and 0.0025 to 0.1wt.%.

82. 发明专利

JPH05301754A 失效
公开(公告)号：JPH05301754A
公开(公告)日：1993-11-16
申请号：JP10937792
申请日：1992-04-28
申请人： KAO CORP
发明人： YAMATO FUJIO , TAMAOKI RYOICHI
IPC分类号： C04B28/02
摘要： PURPOSE:To obtain a concrete composition for self packing requiring no compaction by blending concrete with specific amounts of zeolite and a high- performance water-reducing agent and adjusting slump to >=a given slump flow value. CONSTITUTION:Concrete is blended with 2-10vol.% natural or synthetic zeolite having 0.5-10mum particle diameter and 0.6-3.0wt.% calculated as active ingredient of a high-performance water-reducing agent (e.g. condensate of naphthalenesulfonic acid or its salt and formaldehyde and/or condensate of melaminesulfonic acid or its salt or oxymethylated compound selected from a group consisting of melamine, phenol, urea and aniline and/or a condensate or cocondensate of a sulfonated substance and formaldehyde). A slump flow value is adjusted to >=50cm slump flow value to give a concrete composition for self packing requiring no compaction.

83. 发明专利

JPH05246744A 失效
公开(公告)号：JPH05246744A
公开(公告)日：1993-09-24
申请号：JP4562092
申请日：1992-03-03
申请人： KAO CORP
发明人： FUKUDA MASAHIRO , YAMATO FUJIO , TAMAOKI RYOICHI , IIZUKA MASANORI
IPC分类号： C04B24/30 , C04B24/32 , C04B28/02 , C08K5/13 , C08K5/3492 , C08K5/42 , C08L61/20 , C08L61/28 , C08L71/02
摘要： PURPOSE:To improve separation resistance by mixing a specified polyethylene glycol and condensation polymer or co-condensation polymer of formaldehyde with one or more kinds of compounds expressed by specified formulae I-VI. CONSTITUTION:A condensation polymer (B) or co-condensation polymer is produced from formaldehyde and one or more kinds of compd. expressed by formulae I-VI. Then polyethylene glycol (A) having 6000-50000 weight average mol.wt. and (B) is mixed by (0.5 to 10)/(99.5 to 90) weight ratio to obtain an admixture for concrete. In the formulae I-VI, X1 is H, alkyl group (R) of 1-3 carbon number, carboxyl group (CA), sulfone (SU) or alkali metal (DA) salt of these, hydroxyl group, or methoxy group, X2 is H, R of 1-3 carbon number, CA, SU or DA salt of these, hydroxyl group, or methoxy, X3-X8 are H, -CH2SO3 M3, -CH2OH, or hydroxyl group, and X9-X11 are H, R of 1-3 carbon number, CA, SU or DA salt of these hydroxyl group, methoxy group, -CH2OH, -CH2SO3 M4, wherein M1-M7 are H or DA.

84. 发明专利

JPH0543286A PRODUCTION OF CEMENT-BASED SLURRY COMPOSITION 失效
公开(公告)号：JPH0543286A
公开(公告)日：1993-02-23
申请号：JP19426991
申请日：1991-08-02
申请人： KAO CORP
发明人： YAMATO FUJIO , TAMAOKI RYOICHI , FUKUDA MASAHIRO , IIZUKA MASANORI
IPC分类号： B28C7/14 , C04B24/00 , C04B28/04 , E02D3/12
摘要： PURPOSE:To provide a method for producing cement-based slurry composition for grout which is excellent in stability and strength of the hardened material. CONSTITUTION:In a method for producing cement-based slurry composition for grout, the foam of a surfactant aqueous solution is mixed i.nto cement-based slurry at 5-30vol.%. The cement-based slurry composition is widely utilized as a binder of ground because bleeding of the slurry and separation of material are solved by using the obtained composition and both clogging of slurry at a time of force-feeding by a pump and uniformity thereof into ground are improved.

85. 发明专利

JPH04331754A SELF-FILLING CONCRETE COMPOSITION 失效
公开(公告)号：JPH04331754A
公开(公告)日：1992-11-19
申请号：JP9850191
申请日：1991-04-30
申请人： KAO CORP
发明人： FUKUDA MASAHIRO , TAMAOKI RYOICHI , IIZUKA MASANORI , YAMATO FUJIO
IPC分类号： C04B24/12 , C04B24/22 , C04B24/38 , C04B28/04 , C04B111/62
摘要： PURPOSE:To obtain a concrete composition having high fluidity, high separation resistance, self-filling performance, suppressed cure retardation and little influence on strength by using a high-performance water-reducing agent and a water- soluble polymer as essential components. CONSTITUTION:The high-performance water-reducing agent to be used in the present composition is a condensation product of a naphthalenesulfonic acid salt and formaldehyde, a condensation product of a melaminesulfonic acid salt and formaldehyde or a homo or co-condensation product of formaldehyde and one or more methylolation or sulfonation product of a compound selected from melamine, urea, phenol and aniline. The water-soluble polymer of the composition is galactomannan and/or its hydroxypropylation product. A concrete composition composed mainly of cement, fine aggregate and coarse aggregate is incorporated with 0.3-3.0wt.% of the high-performance water-reducing agent and 0.01-0.2wt.% of the water-soluble polymer (the viscosity of the above two components dissolved in water is 50-1,000cPs at 20 deg.C) to obtain the objective tamp-free composition having a concrete slump flow value of >=55cm.

86. 发明专利

JPH01270548A ADMIXTURE FOR CONCRETE 失效
公开(公告)号：JPH01270548A
公开(公告)日：1989-10-27
申请号：JP9750488
申请日：1988-04-20
申请人： KAO CORP
发明人： IIZUKA MASANORI , KOJIMA TOSHIHARU , TAMAOKI RYOICHI , TSUJI AKITOSHI
IPC分类号： C04B24/04
摘要： PURPOSE:To make it possible to keep the target air flow rate for a long period by using an aqueous emulsion of a long-chain fatty acid ester as an air- entraining agent for concrete. CONSTITUTION:An admixture (air-entraining agent) for concrete obtained by using an aqueous emulsion of a fatty acid ester, e.g., methyl laurate, consisting of an 8-18C fatty acid and a 1-10C alcohol and having 0.05-20mum, preferably 0.05-10mum average particle diameter. The above-mentioned admixture for concrete can be used with other admixtures, such as commercially available water- reducing agents, slump loss preventive agents or hardening accelerators. The amount of the admixture to be added to the cement is normally 0.01-0.3% based on the cement.

87. 发明专利

JPH01270547A ADMIXTURE FOR CONCRETE 失效
公开(公告)号：JPH01270547A
公开(公告)日：1989-10-27
申请号：JP9750388
申请日：1988-04-20
申请人： KAO CORP
发明人： IIZUKA MASANORI , KOJIMA TOSHIHARU , TAMAOKI RYOICHI , TSUJI AKITOSHI
IPC分类号： C04B24/00
摘要： PURPOSE:To make it possible to keep the target air flow rate for a long period, by using fine particles of resin acid or a bi- or polyvalent metallic complex thereof as an air-entraining agent for concrete. CONSTITUTION:An admixture (air-entraining agent) for concrete obtained by using a water-insoluble or sparingly soluble resin acid or a complex of a polyvalent metal (e.g., Mg, Ba, Zn, Fe or Al) and having 0.05-100mum, preferably 0.05-50mum average particle diameter. The above-mentioned complex is preferably obtained normally by adding a polyvalent metallic hydroxide in an amount of 50-100% based on neutralization equiv. of the resin acid. The amount of the admixture added to the cement is normally 0.001-0.1% based on the cement.

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