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1. 发明专利

JP2001354485A STABILIZING AGENT FOR GLAZE AND METHOD FOR STABILIZING GLAZE 失效
公开(公告)号：JP2001354485A
公开(公告)日：2001-12-25
申请号：JP2000170361
申请日：2000-06-07
申请人： NIPPON CHEMICAL IND
发明人： MATSUMOTO NOBUO , HANDA EIICHI , KANEDA YOSHIRO
IPC分类号： B01F17/14 , C04B41/86 , C09D1/00
摘要： PROBLEM TO BE SOLVED: To obtain a glaze stabilizing agent capable of providing a glaze with excellent dispersion properties and excellent long-term viscosity stability and improving storage stability, and also, to provide a glaze stabilization method using the stabilizing agent. SOLUTION: This stabilizing agent contains at least one organophosphorus compound metal salt selected from 1-hydroxyethylidene-1,1-diphosphonic acid metal salts represented by general formula (1), nitrilotrismethylenephosphonic acid metal salts represented by general formula (2), phosphoric acid diester metal salts represented by general formula (3) and phosphoric acid monoester metal salts represented by general formula (4).

2. 发明专利

JP2000109835A CHEMICAL LIQUID TO BE INJECTED IN SOIL 失效
公开(公告)号：JP2000109835A
公开(公告)日：2000-04-18
申请号：JP28761298
申请日：1998-10-09
申请人： SHIMIZU CONSTRUCTION CO LTD , NIPPON CHEMICAL IND
发明人： MIYAMOTO TAKESHI , SEKINE AKIRA , TSUKAHARA SHIGERU , ABE YASUHIRO , KANEDA YOSHIRO
IPC分类号： E02D3/12 , C04B28/26 , C09K17/02 , C09K17/12 , C09K17/46 , C09K103/00
摘要： PROBLEM TO BE SOLVED: To easily design gel time, improve consolidation durability and prevent pollution of groundwater and corrosion of an underground structure by using an aqueous solution of active silicic acid and an aqueous solution of acidic silica sol as effective components. SOLUTION: An aqueous solution of active silicic acid which substantially does not contain any salt is obtained by removing alkali ions from a water-soluble silicate such as sodium silicate and the like by means of an ion exchange method or the like and pH thereof is preferably less than 4. An acidic reactive agent is preferably added to the aqueous solution of active silicic acid to adjust pH at a value not more than 2 whereby the aqueous solution keeps stability for a long term and production not in site but in plant is enabled. The acidic reactive agent is preferably phosphoric acid. The amount of water glass to be added to the aqueous solution of active silicic acid in preparing a chemical liquid to be injected to soil is 25-300 wt.% of the amount of total SiO2 existing in the aqueous solution of active silicic acid. Gel time can be arbitrarily and widely changed by changing a mixing ratio thereof.

3. 发明专利

JP2000063686A ANTIBACTERIAL POLYMER BEAD 失效
公开(公告)号：JP2000063686A
公开(公告)日：2000-02-29
申请号：JP25178298
申请日：1998-08-24
申请人： NIPPON CHEMICAL IND
发明人： SUGIYA TADASHI , INABA YOSHIKO , KANEDA YOSHIRO
IPC分类号： A01N25/10 , A01N25/34 , A01N57/34 , C08K5/50 , C08L101/06
摘要： PROBLEM TO BE SOLVED: To obtain polymer beads excellent in antibacterial action by incorporating at least one kind of antibacterial phosphonium cations into a cation- exchange resin having acidic groups. SOLUTION: The polymer beads, having an average bead size of 20-2,000 μm, are prepd. by incorporating 0.1-80 mol.% antibacterial phosphonium cations into a cation-exchange resin having acidic groups (e.g. sulfo or carboxyl groups). Examples of a phosphonium cation represented by the formula: R1R2R3R4P+ are a trimethyl-n-dodecylphosphonium cation, a trimethyl-n-octadecylphosphonium cation, and a triethylbenzylphosphonium cation, In the formula, Rl to R4 are each H, 1-20C alkyl, aryl or CH2=C(Y)-A-Z-(wherein Y is H, lower alkyl or aryl; A is a single bond, benzyl, -OCO- or -COO-; and Z is a single bond or alkylene).

4. 发明专利

JPH09157541A WHITE RUST-PREVENTIVE PIGMENT AND RUST-PREVENTIVE COATING MATERIAL CONTAINING THE SAME 失效
公开(公告)号：JPH09157541A
公开(公告)日：1997-06-17
申请号：JP34617295
申请日：1995-12-12
申请人： NIPPON CHEMICAL IND
发明人： IIZUKA SAKAE , NAGAYAMA TAKAHIRO , KANEDA YOSHIRO
IPC分类号： C09C1/04 , C09C1/00 , C09C1/40 , C09D5/08
摘要： PROBLEM TO BE SOLVED: To obtain a white rust-preventive pigment which is of a nonpolluting type and has excellent rust-preventive power by using a powdery composition containing an Mg, Ca, Zn or like metal phosphate (phosphite) surface-treated with an acid phosphoric ester and zinc oxide. SOLUTION: A powdery composition containing a salt (A) of a modified phosphorus oxoacid with Mg, Ca, Sr, Zn or Al and a modified zinc oxide (B) is used as a white rust-preventive pigment. Examples of component A incloude ones prepared by surface-treating a metal (e.g. Mg) phosphite, phosphate or polyphosphate (C) with an acid phosphoric ester or a phosphonic acid (derivative) having a chelating capacity. Examples of component B include ones prepared by surface-treating with a white insoluble metal oxide, hydrated oxides, silica, metal silicates, etc. Examples of component C include methyl acid phosphate, and stearyl acid phosphate and aminoalkylenephosphonic acid. Component C is desirably used in an amount of 1-10wt.% based on component A, and 1-20wt.% based on component B. The A/B ratio by weight is 50:1 to 1:50.

5. 发明专利

JP2002137958A ADDITIVE FOR BRICK CLAY AND ITS COMPOSITION 失效
公开(公告)号：JP2002137958A
公开(公告)日：2002-05-14
申请号：JP2000328647
申请日：2000-10-27
申请人： NIPPON CHEMICAL IND
发明人： MATSUMOTO NOBUO , HANDA EIICHI , KANEDA YOSHIRO
IPC分类号： C04B33/13
摘要： PROBLEM TO BE SOLVED: To provide an additive with excellent dispensability for a brick which has excellent dimensional accuracy and high bending strength and causes less crack. SOLUTION: The additive for the brick clay contains at least one kind of metal salt of organic phosphate selected from the group consisting of a metal salt of 1-hydroxyethylidene-1,1-diphosphoric acid shown by formula (1), a metal salt of nitrilo(tirs-methylene)phosphoric acid, a metal salt of phosphoric diester and a metal salt of phosphoric monoester.

6. 发明专利

JP2001354472A STABILIZING AGENT FOR POTTERY CASTING SLIP AND METHOD FOR STABILIZING POTTERY CASTING SLIP 失效
公开(公告)号：JP2001354472A
公开(公告)日：2001-12-25
申请号：JP2000170362
申请日：2000-06-07
申请人： NIPPON CHEMICAL IND
发明人： MATSUMOTO NOBUO , HANDA EIICHI , KANEDA YOSHIRO
IPC分类号： C04B33/28 , B28B1/26 , C07F9/09 , C07F9/38
摘要： PROBLEM TO BE SOLVED: To obtain a pottery casting slip stabilizing agent capable of providing a pottery casting slip with excellent water reduction properties and excellent dispersion properties and improving long-term storage stability of the pottery casting slip, and also, to provide a pottery casting slip stabilization method using the stabilizing agent. SOLUTION: This stabilizing agent contains at least one organophosphorus compound metal salt selected from 1-hydroxyethylidene-1,1-diphosphonic acid metal salts represented by general formula (1), nitrilotrismethylenephosphonic acid metal salts represented by general formula (2), phosphoric acid diester metal salts represented by general formula (3) and phosphoric acid monoester metal salts represented by general formula (4).

7. 发明专利

JP2001252675A METHOD FOR REMOVING HEAVY METAL ION IN WASTE WATER 失效
公开(公告)号：JP2001252675A
公开(公告)日：2001-09-18
申请号：JP2000068729
申请日：2000-03-13
申请人： NIPPON CHEMICAL IND
发明人： HANDA EIICHI , KOTAKI HIDEKI , KANEDA YOSHIRO
IPC分类号： C02F1/62 , B01J41/10
摘要： PROBLEM TO BE SOLVED: To provide a method for reproving a heavy metal-containing ion from waste water and a method for recovering an anion exchanger capable of selectively capturing the heavy metal-containing ion in the waste water even at relatively low temperature and capable of removing the heavy metal- containing ion from the waste water by converting the heavy metal-containing ion to hardly soluble anion exchanger and subjecting the hardly soluble anion exchanger to solid-liquid separation. SOLUTION: The heavy metal ion in the waste water is removed by precipitating hydrocalumite bringing Al2O3 component-containing compound or mixture and calcium oxide or calcium hydroxide into contact with the heavy metal- containing ion in the waste water and subjecting the hydrocalumite to solid- liquid separation.

8. 发明专利

JP2001252648A ANION CAPTURING AGENT AND METHOD FOR RECOVERING INORGANIC ANION EXCHANGER FROM WASTE WATER 失效
公开(公告)号：JP2001252648A
公开(公告)日：2001-09-18
申请号：JP2000068728
申请日：2000-03-13
申请人： NIPPON CHEMICAL IND
发明人： HANDA EIICHI , KOTAKI HIDEKI , KANEDA YOSHIRO
IPC分类号： C02F1/28 , B01J20/08 , B01J41/02
摘要： PROBLEM TO BE SOLVED: To provide an anion capturing agent capable of selectively capturing and adsorbing the anion in waste water, especially the nitrite ion and the nitrate ion in the waste water, and having excellent adsorptivity, to provide a method for removing the nitrate ion in the waste water by separating the nitrate ion as a hardly soluble compound by using the capturing agent and to provide a method for recovering an inorganic anion exchanger having a specified structure from the waste water. SOLUTION: The nitrate ion in waste water is removed by allowing a compound or a mixture containing an Al2O3 component and an anion capturing agent containing bivalent metal oxide or hydroxide to fring into contact with the nitrate ion or the nitrite ion in waste water to form a hardly soluble inorganic anion exchange, and the nitrate ion in the waste water is removed by subjecting the inorganic anion exchanger to solid-liquid separation. Thereby, the inorganic anion exchanger is recovered from the waste water.

9. 发明专利

JPH10294196A ANTISTATIC AGENT 失效
公开(公告)号：JPH10294196A
公开(公告)日：1998-11-04
申请号：JP11357297
申请日：1997-04-16
申请人： NIPPON CHEMICAL IND
发明人： SUGIYA TADASHI , SANO NATSUHIRO , KANEDA YOSHIRO
IPC分类号： H05F1/00
摘要： PROBLEM TO BE SOLVED: To provide an antistatic agent having excellent antistatic capacity and high heat resistance and a high polymer material containing its antistatic agent by using phosphonium salt as an effective component. SOLUTION: The composition contains phosphonium salt having a betaine structure expressed by a formula as an effective component. In the formula, R , R and R represent an alkyl group of 1-22C and X represents H, an alkyl group of 1-4C, a phenyl group, a carboxyl group and a carboxyl ester group, and Y represents H, a methyl group and a carboxyl methyl group, and A respreesents an inorganic acid or an organic acid. The content of the phosphonium salt is desirable to be not less than 0.1 wt.%, preferably 10 to 100 wt.%. An internally adding method or a method of applying it to a surface is cited as an imparting method. In the internally adding method, it is added and mixed at polymer work time or manufacturing time. In a method of adding it at polymer work time, it is directly added, and may be mixed by a tumbler, a ribbon blender, a high speed mixer or the like.

10. 发明专利

JP2003155399A RED PHOSPHORUS-BASED FLAME RETARDANT FOR EPOXY RESIN AND METHOD FOR PRODUCING THE SAME 审中-公开
公开(公告)号：JP2003155399A
公开(公告)日：2003-05-27
申请号：JP2001357044
申请日：2001-11-22
申请人： NIPPON CHEMICAL IND
发明人： KANEDA YOSHIRO
IPC分类号： C09K21/04 , C08K9/00 , C08L63/00
摘要： PROBLEM TO BE SOLVED: To provide a red phosphorus-based flame retardant which has excellent corrosion resistance and flame retardance and is used for epoxy resins. SOLUTION: This red phosphorus-based flame retardant which is used for epoxy resins, has a P content of 65 to 97 wt.% and in which double coating layers comprising the first coating and the second coating are formed on the surfaces of red phosphorus particles. The first coating comprises a zinc hydroxide coating produced by reacting a soluble zinc compound with an alkali agent at a pH value of >=6.5, and the second coating comprises a phenolic resin coating containing zinc oxide. The zinc hydroxide is coated in an amount of 0.5 to 10 wt.% based on the red phosphorus particles, and the 10 wt.% slurry of the red phosphorus-based flame retardant in 20 deg.C water has an electric conductivity of

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