Patent ID: 11920108
Assignee: MITSUI CHEMICALS, INC.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  D | IPC C  D

Claim 8:
9. A method of applying an antiredeposition ability to a detergent composition, the method including incorporating, into the detergent composition, a polyaspartic acid alkali metal salt having a polydispersity, represented by the ratio (Mw/Mn) of the weight-average molecular weight (Mw) to the number-average molecular weight (Mn), of 1.4 to 1.7 and being selected from the group consisting of lithium polyaspartate, potassium polyaspartate, and sodium polyaspartate,
the polyaspartic acid alkali metal salt having a weight-average molecular weight (Mw) of from 21,400 to 120,000.