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1. 发明公开

EP2905358A4 METHOD FOR PROCESSING COOLING WATER SYSTEM 审中-公开
标题翻译：方法处理的冷却水系统
公开(公告)号：EP2905358A4
公开(公告)日：2016-06-08
申请号：EP13843604
申请日：2013-10-01
申请人： KURITA WATER IND LTD
发明人： CHIBA IKUKO , NAGAI NAOHIRO , YOSHINO TAKANORI , NAKANO MASATO , SANO YUKI
IPC分类号： C23F11/173 , C02F1/68 , C02F5/00 , C02F5/10 , C08F220/06 , C23F11/08 , C23F11/10 , C23F14/02 , F28F19/00
CPC分类号： C23F11/173 , C02F1/683 , C02F5/10 , C02F2103/023 , C08F220/06 , C23F11/08 , C23F11/10 , C08F216/1466

2. 发明公开

EP2175224A4 METHOD AND APPARATUS FOR CONTROLLING CHEMICAL FEEDING IN COOLING WATER SYSTEM 审中-公开
标题翻译：方法和一种控制化学品的水系统冷却供应
公开(公告)号：EP2175224A4
公开(公告)日：2013-04-10
申请号：EP08777158
申请日：2008-06-12
申请人： KURITA WATER IND LTD
发明人： NAKANO TADASHI , UCHIDA TAKAHIKO , NAGAI NAOHIRO
IPC分类号： F28G13/00 , C02F1/00 , F28F19/00 , F28F19/01 , F28F25/00 , F28F27/00
CPC分类号： F28F25/00 , C02F1/008 , C02F1/685 , C02F2103/023 , C02F2209/005 , C02F2209/02 , C02F2209/05 , C02F2209/40 , F28F2025/005

3. 发明公开

EP2196092A4 BACTERICIDAL/ALGICIDAL METHOD 有权
标题翻译：细菌/ALGENTÖTENDES程序
公开(公告)号：EP2196092A4
公开(公告)日：2012-01-25
申请号：EP08832826
申请日：2008-09-10
申请人： KURITA WATER IND LTD
发明人： YONEDA YUTAKA , OTAKA HIDEO , TANAKA KOUICHI , TSUNODA KAZUHIKO , NAGAI NAOHIRO , IIMURA AKIRA
IPC分类号： A01N59/08 , A01N25/00 , A01N25/22 , A01N59/00 , A01N59/02 , A01P3/00 , A01P13/00 , C02F1/76
CPC分类号： C02F1/76 , A01N59/00 , C02F2209/04 , Y02W10/37 , A01N25/22 , A01N2300/00

4. 发明公开

EP1550369A4 COMPOSITION FOR PREVENTION OF SLIME AND METHOD FOR PREVENTING SLIME 有权
标题翻译： ZUSAMMENSETZUNG ZUR SCHLEIMVERMEIDUNG UND VERFAHREN ZUR SCHLEIMVERMEIDUNG
公开(公告)号：EP1550369A4
公开(公告)日：2005-07-20
申请号：EP03730556
申请日：2003-05-21
申请人： KURITA WATER IND LTD
发明人： TSUNEKI TAKAO , NAGAI NAOHIRO , MORITA AKIRA , UCHIDA TAKAHIKO
IPC分类号： A01N59/00 , C02F1/50 , C02F1/76 , A01N41/08 , A01N57/20 , A01N59/08 , A01N61/00 , C02F1/54 , C02F5/10
CPC分类号： C02F1/76 , A01N59/00 , C02F1/50 , C02F2103/023 , C02F2103/18 , C02F2103/28 , C02F2303/04 , C02F2303/20 , A01N59/02 , A01N57/20 , A01N25/10 , A01N2300/00
摘要： A composition for the prevention of a slime, characterized in that it comprises a chlorine-containing oxidizing agent, a sulfamic acid based compound, and an anionic polymer or phosphonic acid based compound; and a method for preventing a slime, characterized in that it comprises adding the composition for the prevention of a slime to a water system. The composition for the prevention of a slime can be used for effectively preventing a trouble resulting from a slime by the use of a small amount of a drug, in a cooling water system, a heat generating system, a paper pulping process water system, a dust collecting water system, a scrubber water system and the like.
摘要翻译：一种用于防止粘泥的组合物，其特征在于它包含含氯氧化剂，氨基磺酸基化合物和阴离子聚合物或膦酸基化合物; 以及一种防止粘泥的方法，其特征在于它包括将用于防止粘泥的组合物加入到水体系中。用于防止粘液的组合物可以用于在冷却水系统，发热系统，造纸过程水系统，造纸系统，水处理系统中，通过使用少量药物来有效地防止由粘液引起的问题集尘水系统，洗涤水系统等。

5. 发明专利

DE60200774T2 未知
公开(公告)号：DE60200774T2
公开(公告)日：2005-08-04
申请号：DE60200774
申请日：2002-08-21
申请人： KURITA WATER IND LTD
发明人： NAGAI NAOHIRO , MORITA AKIRA , TSUNEKI TAKAO , UCHIDA TAKAHIKO
IPC分类号： C02F1/50 , A01N43/647 , A01N59/02 , A01N59/08

6. 发明专利

SG11202105553UA WATER TREATMENT AGENT 未知
公开(公告)号：SG11202105553UA
公开(公告)日：2021-06-29
申请号：SG11202105553U
申请日：2020-01-10
申请人： KURITA WATER IND LTD
发明人： NAKANO TADASHI , NAGAI NAOHIRO
IPC分类号： C02F5/10 , C02F1/50 , C02F1/76
摘要： Provided is a water treatment agent that excellently exhibits the effect of hypobromous acid when added to an aqueous system. This water treatment agent: contains the following components (a) to (c), i.e., (a) a chloramine compound, (b) a bromide salt, and (c) 1-18 mass% of a carboxyl-group polymer having a carboxyl group content of 0.8 g COOH/g polymer or less, the water treatment agent having a pH of 10 or higher; and/or includes an alkaline agent, a chloramine compound, and a bromide salt, the water treatment agent being such that the total chlorine detection rate after production is 95% or higher, and the free chlorine content within the total chlorine concentration is 0.05% (as Cl2) or less. The molar ratio of the chloramine compound and the bromide salt is suitably 1:0.1-1.0.

7. 发明专利

MY176754A METHOD FOR PROCESSING COOLING WATER SYSTEM 未知
公开(公告)号：MY176754A
公开(公告)日：2020-08-21
申请号：MYPI2015701049
申请日：2013-10-01
申请人： KURITA WATER IND LTD
发明人： CHIBA IKUKO , NAGAI NAOHIRO , YOSHINO TAKANORI , NAKANO MASATO , SANO YUKI
摘要： A method for treating a cooling water system comprises adding, in a cooling water system having calcium hardness of 250 mg/L or less as CaCO3, a treatment agent containing a (meth)acrylic acid-based copolymer. The (meth)acrylic acid-based copolymer comprises a structural unit (a) derived from a (meth)acrylic acid-based monomer (A) represented by the following general formula(1) and a structural unit (b) derived from a specific (meth)allyl ether-based monomer (B) represented by the following general formula (2), a content of the structural unit (b) is 1 to 15 mol% relative to 100 mol% of structural units derived from all the monomers, a weight average molecular weight of the (meth)acrylic acid-based copolymer is 7,000 to 28,000, and at least one of the main chain terminals of the (meth)acrylic acid-based copolymer is a sulfonic acid group or a salt thereof.

8. 发明专利

SG11201502632XA METHOD FOR PROCESSING COOLING WATER SYSTEM 未知
公开(公告)号：SG11201502632XA
公开(公告)日：2015-05-28
申请号：SG11201502632X
申请日：2013-10-01
申请人： KURITA WATER IND LTD
发明人： CHIBA IKUKO , NAGAI NAOHIRO , YOSHINO TAKANORI , NAKANO MASATO , SANO YUKI
IPC分类号： C23F11/173 , C02F1/68 , C02F5/00 , C02F5/10 , C08F220/06 , C23F14/02 , F28F19/00
摘要： A method for treating a cooling water system comprises adding, in a cooling water system having calcium hardness of 250 mg/L or less as CaCO 3 , a treatment agent containing a (meth)acrylic acid-based copolymer The (meth)acrylic acid-based copolymer comprises a structural unit (a) derived from a (meth)acrylic acid-based monomer (A) represented by the following general formula (1) and a structural unit (b) derived from a specific (meth)allyl ether-based monomer (B) represented by the following general formula (2), a content of the structural unit (b) is 1 to 15 mol% relative to 100 mol% of structural units derived from all the monomers, a weight average molecular weight of the (meth)acrylic acid-based copolymer is 7,000 to 28,000, and at least one of the main chain terminals of the (meth)acrylic acid-based copolymer is a sulfonic acid group or a salt thereof.

9. 发明专利

BRPI0817976A2 未知
公开(公告)号：BRPI0817976A2
公开(公告)日：2014-09-30
申请号：BRPI0817976
申请日：2008-09-10
申请人： KURITA WATER IND LTD
发明人： YONEDA YUTAKA , OTAKA HIDEO , TANAKA KOUICHI , TSUNODA KAZUHIKO , NAGAI NAOHIRO , IIMURA AKIRA
IPC分类号： A01N59/08 , A01N25/00 , A01N25/22 , A01N59/02 , A01P3/00 , A01P13/00
摘要： The invention provides a bactericidal/algicidal method including adding an oxidant-based bactericidal/algicidal agent and a stabilizer therefor to a target water system, characterized in that the amount of combined chlorine or the stabilizer in the water system is controlled by generating free residual chlorine in the water system, and a bactericidal/algicidal method including adding an oxidant-based bactericidal/algicidal agent and a stabilizer therefor to a target water system, characterized in that the amount of the oxidant-based bactericidal/algicidal agent added is controlled so that the concentration of total residual chlorine in the water system falls within a predetermined range, and the amount of combined chlorine or the stabilizer is controlled so that the concentration of free residual chlorine in the water system falls within a predetermined range. An object of the present invention is to provide a bactericidal/algicidal method including adding an oxidant-based bactericidal/algicidal agent and a stabilizer therefor to a target water system for bactericidal/algicidal treatment, wherein the amount of combined chlorine or the stabilizer is controlled, and the amount of the oxidant-based bactericidal/algicidal agent added is controlled, which method realizes effective utilization of the stabilizer, to thereby reduce the amount of the stabilizer employed and to reduce COD and the amount of nitrogen derived from the stabilizer, and which method does not require a special control apparatus for in-line mixing as described above.

10. 发明专利

AT271316T 未知
公开(公告)号：AT271316T
公开(公告)日：2004-08-15
申请号：AT02018719
申请日：2002-08-21
申请人： KURITA WATER IND LTD
发明人： NAGAI NAOHIRO , MORITA AKIRA , TSUNEKI TAKAO , UCHIDA TAKAHIKO
IPC分类号： C02F1/50 , A01N43/647 , A01N59/02 , A01N59/08 , A01N59/00

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