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1. 发明申请

WO1995000559A1 SLUDGE DEHYDRATING AGENT 审中-公开
标题翻译：污泥脱水剂
公开(公告)号：WO1995000559A1
公开(公告)日：1995-01-05
申请号：PCT/JP1993000850
申请日：1993-06-23
申请人： KOHJIN CO., LTD. , NAGAMOTO, Akiyoshi , IMAMURA, Kouichi , OKA, Hiroshi
发明人： KOHJIN CO., LTD.
IPC分类号： C08F08/00
CPC分类号： C02F11/14 , B01D21/01 , C08F8/00 , C08F220/56 , C08F220/60 , C08F2800/10 , C08F20/00 , C08F20/60
摘要： A novel process for producing an acrylic polymer serving as a sludge dehydrating agent, which polymer contains tertiary amino group which are neither quaternized nor converted into corresponding salts and has a high molecular weight, which process comprises preparing an acrylic monomer containing a tertiary ammonium carbonate group by the reaction of an aqueous solution of an acrylic monomer containing a tertiary amino group with carbon dioxide, polymerizing the obtained monomer alone or copolymerizing the monomer with another copolymerizable vinyl monomer to prepare a polymer containing tertiary ammonium carbonate units, and decarbonating the polymer by heating and/or evacuating. Among others, especially an acrylic polymer containing at least 5 mol% of the tertiary amino group units and comprising a water-soluble vinyl polymer having the intrinsic viscosity [ eta ] of 1 dl/g or above is useful as an excellent sludge dehydrating agent.
摘要翻译：一种制备用作污泥脱水剂的丙烯酸类聚合物的新方法，该聚合物含有不是季铵化的叔氨基，也不转化为相应的盐并且具有高分子量，该方法包括制备含有碳酸铵基团的丙烯酸类单体通过使含有叔氨基的丙烯酸类单体的水溶液与二氧化碳的反应，单独聚合所得单体或使单体与另一种可共聚的乙烯基单体共聚，制备含有叔碳酸铵单元的聚合物，并通过加热使聚合物脱碳和/或撤离。其中特别优选含有至少5mol％叔氨基单元并含有特性粘度ηddl / g以上的水溶性乙烯基聚合物的丙烯酸类聚合物作为优异的污泥脱水剂。

2. 发明申请

WO1988006152A1 PROCESS FOR PREPARING UNSATURATED QUATERNARY AMMONIUM SALTS 审中-公开
标题翻译：制备不稳定季铵盐的方法
公开(公告)号：WO1988006152A1
公开(公告)日：1988-08-25
申请号：PCT/JP1988000165
申请日：1988-02-18
申请人： KOHJIN CO., LTD. , NAGATSU, Yoshirou , NAGAMOTO, Akiyoshi , HARADA, Kazuya , MUKOUYAMA, Hideaki
发明人： KOHJIN CO., LTD.
IPC分类号： C07C93/193
CPC分类号： C07C233/89
摘要： A process for preparing unsaturated quaternary ammonium salts, which comprises treating a cationic vinyl monomer represented by general formula (1) with an alkyl or aralkyl halide to prepare an unsaturated quaternary ammonium salt represented by general formula (2) using a reaction solvent comprising a mixture of water with an aprotic organic solvent in a specific mixing ratio and controlling a dissolved oxygen concentration in the system at a level of less than 1.8 ppm but not less than 0.3 ppm. In formula (1), R1 represents a hydrogen atom or a methyl group, R2 and R3 each independently represents a C1-4 alkyl group, A represents an oxygen atom or NH, and B represents a C1-4 alkylene group. In formula (2), R1, R2, R3, A, and B are as defined above, R4 represents a C1-4 alkyl group or a benzyl group, and X- represents a halide anion. In this process, the ammonium salt is not precipitated even when formed as the reaction proceeds, which permits smooth stirring of the system and heat removal therefrom and which prevents formation of substances causative of polymerization and gelation and inhibiting polymerization due to overheating. This process enables an excellent aqueous solution of the unsaturated quaternary ammonium salt to be industrially produced with ease. The salt can be used as a starting material for producing a high-molecular cationic polymer.

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