Aqueous polymer capable of free-radial polymerizing monomer, process for producing said polymer and floccutant containing same


Application Number: 00124158
Application Date: 2000.08.18
Publication Number: 1285361
Publication Date: 2001.02.28
Priority Information: 2000/5/10 JP 136787/200; 1999/8/19 JP 233272/1999; 1999/11/1 JP 311527/199; 1999/11/16 JP 325453/199; 2000/3/27 JP 86515/2000
International: C02F1/56;C08F20/34
Applicant(s) Name: Kurita Water Industries Ltd.
Address:
Inventor(s) Name: hamanabe Hidetsune;Kubo Katsutoshi;Ueno Tomoke
Patent Agency Code: 11038
Patent Agent: li yong
Abstract A polymer of a water-soluble radical-polymerizable monomer which has nitroxy group at an end of the molecule; a process for producing a polymer of a water-soluble radical-polymerizable monomer which comprises polymerizing the water-soluble radical-polymerizable monomer in the presence of a polymerization initiator in an aqueous solution containing a nitroxy radical; and a flocculant which comprises a polymer of a water-soluble radical-polymerizable monomer produced in accordance with the process. The polymer of a water-soluble radical-polymerizable monomer has a narrow molecular weight distribution, has nitroxy group at the end of the molecule and is useful as a flocculant in the dewatering treatment of organic sludge.