| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an aqueous solution of acrylic acid (salt)/maleic acid (salt) based copolymer with an excellent temporal stability and a method for producing the same. <P>SOLUTION: The aqueous solution of acrylic acid (salt)/maleic acid (salt) based copolymer including a copolymer obtained by polymerizing in an aqueous medium monomers in which a part or all of acrylic acid is neutralized and monomers in which a part or all of maleic acid is neutralized, and the aqueous medium includes 50 ppm or less of hydrogen peroxide. Since the hydrogen peroxide content is extremely low, the aqueous solution of the polymer shows less temporal coloring, can be stored for a long period of time and is useful as a dispersant, a detergent builder, a fiber treatment agent, a dyeing auxiliary, a scale controller and the like. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
