Abstract: The present invention has an object to provide a polyalkylene glycol-based polymer having high anti-soil redeposition ability in washing treatment and having high compatibility with surfactants. The polyalkylene glycol-based polymer includes: a structure unit (a) derived from a polyalkylene glycol-based monomer (A) of a specific structure, and a structure unit (b) derived from a carboxyl group-containing monomer (B) at specific ratios.

Abstract: The present invention has an object to provide an amphoteric polymer having high anti-soil redeposition ability and solubility with surfactants, and a process for producing the same. The amphoteric polymer includes: a structure unit (a) derived from a cationic group-containing monomer (A); and a structure unit (b) derived from a carboxyl group-containing monomer (B). The structure unit (a) is present at a level of 1 to 99% by mass based on 100% by mass of all structure units derived from all monomers in the amphoteric polymer, and the structure unit (b) is present at a level of 1 to 99% by mass based on 100% by mass of all the structure units derived from all the monomers in the amphoteric polymer.

Abstract: The present invention has an object to provide an amphoteric polymer having high anti-soil redeposition ability and solubility with surfactants, and a process for producing the same. The amphoteric polymer includes: a structure unit (a) derived from a cationic group-containing monomer (A); and a structure unit (b) derived from a carboxyl group-containing monomer (B). The structure unit (a) is present at a level of 1 to 99% by mass based on 100% by mass of all structure units derived from all monomers in the amphoteric polymer, and the structure unit (b) is present at a level of 1 to 99% by mass based on 100% by mass of all the structure units derived from all the monomers in the amphoteric polymer.

Abstract: [Purpose] The purpose of the present invention is to produce a polymer composition with an improved dispersibility for lime soap when used as a detergent and to provide a method for production of the same. [Means of Solution] A laundry detergent or cleaning composition which comprises a polymer composition containing a polymer obtained by polymerizing a polyoxyalkylene-based compound and an unsaturated monomer containing an acid group in the presence of a polymerization initiator, which is characterized by that the polyoxyalkylene-based compound includes 1) a group containing a carbon-carbon double bond, 2) a polyalkylene glycol chain, and 3) one of the groups shown in formulas (1)-(5), and the amount of solvent used at the time of the polymerization is 10 parts or less for 100 parts of the polyoxyalkylene-based compound.

Abstract: [Objective] The objective is to provide a polymer composition having an improved lime soap dispersibility from the prior art in the case of detergent applications and process for the production of it. [Solution] A laundry detergent or cleaning composition, which comprises a polymer composition obtainable by carrying out polymerization reaction of a polyoxyalkylene compound and an acid group-containing unsaturated monomer in the presence of a polymerization initiator, the polyoxyalkylene compound having at least one of aryl group with 8 or more carbon atoms, alkyl group having 8 or more carbon atoms and alkenyl group of 8 or more carbon atoms and oxyalkylene group, a content of an oxyalkylene-origin structure per mol of the polyoxyalkylene compound being in the range of 10-100 mol; a ratio by weight of a polyoxyalkylene compound-origin structure to the acid group-containing unsaturated monomer-origin structure being in the range of 80:20 to 50:50 (provided 80:20 not included), and the composition containing 0.