Amino group-containing polymer, method for producing thereof, and detergent composition

摘要

The present invention aims to provide an amino group-containing polymer that is excellent in anti-soil redeposition property during washing and compatibility with surfactants, a method for producing thereof, and a detergent composition containing the amino group-containing polymer. The present invention is the amino group-containing polymer comprising a structural unit derived from an amino group-containing monomer having a specific structure and a structural unit derived from a nonionic monomer and/or an amino group-containing monomer other than the amino group-containing monomer described above.

主权项

1. An amino group-containing polymer comprising:
a structural unit (a) derived from a monomer (A); and a structural unit (b) derived from a monomer (B), the monomer (A) being an amino group-containing monomer represented by the formula (1): wherein R1 represents a hydrogen atom or a methyl group; R2 represents a methylene group, an ethylene group, or a direct bond; either of Y1 and Y2 represents a hydroxyl group; and the other represents a structure represented by the formula (2) or (3): wherein R3, R4, and R5 are the same as or different from each other and each represents a hydrogen atom or an organic group containing 1 to 20 carbon atoms, R3 and R4 may be bonded to each other to form a cyclic structure, X1− represents a counter anion, R6 and R7 are the same as or different from each other and each represents a hydrogen atom or an organic group containing 1 to 20 carbon atoms, and R6 and R7 may be bonded to each other to form a cyclic structure, the monomer (B) being a monomer (B-1) and/or a monomer (B-2),
the monomer (B-1) being a hydroxyalkyl (meth) acrylate monomer,the monomer (B-2) being an aminoalkyl (meth) acrylate other than the monomer (A), and the amino group-containing polymer comprising the structural unit (a) in an amount of 1% to 20% by mass and the structural unit (b) in an amount of 80% to 99% by mass, for 100% by mass of a total of structural units derived from all monomers forming the amino group-containing polymer.