NIPPON SHOKUBAI CO., LTD.
|NIPPON SHOKUBAI CO., LTD. Patent applications|
|Patent application number||Title||Published|
|20150252129||(METH)ACRYLATE COPOLYMER AND METHOD FOR PRODUCING SAME - Provided is a copolymer having excellent calcium ion trapping ability, calcium carbonate dispersing capacity, and gel resistance. A (meth)acrylic acid-based copolymer contains, as essential structural units, a structural unit (a) derived from a monomer represented by the following formula (1) in an amount of 2% by mole or more and 9% by mole or less, and a structural unit (b) derived from a (meth)acrylic acid (salt) in an amount of 91% by mole or more and 98% by mole or less, relative to 100% by mole of structural units derived from all monomers, wherein the copolymer contains a sulfonic acid (salt) group at least one end of the main chain and has a weight average molecular weight of 7000 to 100000,||09-10-2015|
Patent applications by NIPPON SHOKUBAI CO., LTD.