Patent ID: 8338630

Claim:
An amino acid-modified organopolysiloxane having an amino acid derivative bonded to at least one silicon atom of the organopolysiloxane segment constituting the backbone of the amino acid-modified organopolysiloxane via an amide bond represented by the following general formula (1): wherein X and Y are independently a divalent hydrocarbon group containing 1 to 10 carbon atoms; m is an integer of 0 to 4; R a is a group selected from hydrogen atom, a monovalent hydrocarbon group containing 1 to 4 carbon atoms, and an organic group represented by the following general formula (2): wherein R b is hydrogen atom, a monovalent hydrocarbon group containing 1 to 7 carbon atoms, an alkaline metal, or an alkaline earth metal, and R c is independently hydrogen atom, hydroxy group, or a monovalent hydrocarbon group containing 1 to 10 carbon atoms optionally containing oxygen atom, sulfur atom, or nitrogen atom; and Z is an organic group represented by the general formula (2).