| 摘要 |
This invention is concerned with biodegradable water-soluble graft copolymers having building, anti-filming, dispersing and threshold crystal inhibiting properties, the copolymers comprising, grafted to a biodegradable substrate comprising polyalkylene oxide and/or polyalkoxylated materials, (a) acid-functional monomer(s), and, optionally, (b) other ethylenically unsaturated monomer(s) copolymerizable with (a). The invention is also concerned with a process for preparing the graft copolymers, compositions comprising the graft copolymers, and with the use of such copolymers/compositions. |
